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  1. Previous chapters: Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 In the final chapter of the series, Austin lets Jon take control and do whatever the big muscle bullpup wants to his smaller stepson. Jon is all too eager to exert his full strength and size to get what he wants. Thanks to everyone who has been along for the ride, and sorry for the long delay in posting this last chapter. I guess in some ways I didn't want this story to end, and it didn't feel like it would if I didn't post the last chapter! Even though this story has generated less traction than some of my older stories, I'm really proud of it and I think it's some of my best work. When Austin was finished, he pulled out, leaving behind a streak of cum dripping out of Jon’s huge furry hole. He stepped back and gave Jon’s rump a firm, satisfied smack, causing the big man to gasp and chuckle as he looked back at his diminutive Sir. “That’s my bull, mmm felt so good, pup,” Austin said as Jon turned around, still on his knees, still taller than Austin. Jon raised his hands up to his chest and put his fists together, muscles bulging and tensing as he did, and he cocked his head to one side, seeking his master’s praise. “Arrooooo?” he grunted. His jock-bound cock pressed against the side of the deck, leaking pre, hard as a rock. “Oooh yeah pup, we need to drain those big balls of yours too,” Austin said, stepping closer. He reached his hands out and rubbed Jon’s huge pecs in wide circles, spreading the rain and sweat over the chest hair, flicking across his sensitive nipples. Jon gasped and grunted as Austin teased him. “I want to try something that we haven’t done yet, pup,” Austin said conspiratorially. He reached up and tugged his thick chain necklace to make him look down. They locked eyes, Austin’s green staring into Jon’s intense blue. “Borrrk?” Jon grunted, still fully in pup mode. He was locked in to pup space until his monster cock was relieved of its payload. “Bull, you’re the biggest, strongest, most powerful man to ever exist,” Austin said. He reached over and rubbed Jon’s massive right delt and bicep, marveling at the hard, round, full, fur-covered muscle in his hand. Jon flexed in response, always wanting to impress his master. “And you do such a good job of doing everything I say and having me be in total control all the time, like a good bullpup should,” Austin continued. His hand continued down to the convex curve of Jon’s huge muscle gut. Jon breathed a deep sigh, his belly swelling out even more. “Well,” Austin said, stepping closer and lowered his voice to a whisper. “This time, I want my bull to do whatever he wants to his Sir.” Jon took a big breath and stiffened his shoulders, raising himself up higher and tensing. His cock bulged and burbled out more pre. “I’m going to let you borrow control and use me however you want, pup,” Austin continued, leaning his head against Jon’s huge chest. Jon’s breathing intensified and a shiver of excitement and anticipation ran through him like an electric current. His cock bulged and surged more until the head of it pushed out of the tight jock and rubbed against the bottom of his huge gut. “I will always be in control and expect obedience, but I want to feel the full power of my bull pup when he lets go and does whatever he wants. No stopping until you cum, no matter what I say, no matter how hard I might beg you to stop, you hear that, pup?” Austin said firmly, commanding his pup. “AAARRROOOOOOOF!” Jon boomed in excitement. He bolted to his feet and towered over the smaller man. Jon took in the full power difference he had over his Sir, his mind clearing in a way he hadn’t felt in months, and realized just how helpless Austin was before him. He looked down at the sheer size of himself, his enormous, powerful muscles, his round, furry gut, his stupendous height, and he tensed his massive fists. He’d never felt so powerful in his entire life, had never fully realized just how huge he had become. “I’m all yours, pup. What do you want to do to your Sir?” Austin said, spreading his arms wide, his naked muscular body glistening in the light rain, his cock still dripping with football jock cum. He was so grateful that his master was letting him experience the full power he possessed, the true size difference between them. He felt light-headed at the possibilities. Jon looked down at Austin. Jon was twice his height. Jon was several times his weight. Jon was the strongest man on earth. A grin spread across Jon’s face under his pup hood and couldn’t help but laugh in anticipation and excitement. Jon tore at the jock containing his mighty bulge until the elastic snapped, freeing his manhood. It slapped against the bottom of his gut, 20 inches long and as thick as a milk jug. He growled and breathed heavily, his cock throbbing and leaking pre as he looked down at Austin. He reached down and lifted Austin up effortlessly, scooping him up under the armpits and bringing him up to his pup mask. “AAARRRFFF, WOOOOOF!” Jon grunted as he rubbed his master against the snout of his hood and licked him, tasting master’s cum and sweaty and rain-soaked naked body. Jon’s hot, protein shake-smelling breath washed over Austin and the smaller man groaned. “Yeah pup, use your master however you want, don’t stop until you cum, pup,” Austin breathed as Jon nuzzled him aggressively. “MMMLLAAHHH,” Jon breathed as he thrust his tongue aggressively against Austin’s mouth, making out hard, holding him up in the air easily, his hands rubbing against Austin’s tight, hard, muscular body. Austin could hardly breathe as Jon’s tongue pressed into his mouth, pinning down his own tongue, exploring his mouth. Jon walked to the middle of the backyard as he continued kissing his master, scraping his beard against Austin’s face, overwhelming Austin’s senses. Even Jon’s beard was bigger, thicker, and stronger than he was. Eventually, Jon separated from Austin and held him at arm’s length, looking him up and down, rain and sweat dripping down his naked torso. Jon’s cock throbbed in anticipation. Whatever he wanted? As hard as he wanted? Jon bounced Austin up and down in his hands, marveling at the lightness of his muscular, football jock master. Jon laughed at the absurd power difference he felt, really understanding it for the first time. Jon dropped to his knees and set Austin on the grass. Jon raised his arms up and flexed, huge biceps bulging, his furry pits exposed and ripe. “RRPHHH, MMPH!” Jon grunted and gestured for Austin to rub his flexing muscles. Austin got the hint and stepped forward, running his hands over Jon’s huge arms. “Yeah pup, you’re so big and muscular, huh?” Austin said, worshipping his muscle pup. “You like all this attention, don’t you?” “WRRROOOOF!” Jon boomed and flexed harder. He dropped his left arm and reached around behind Austin before pushing him hard towards Jon. Austin stumbled and fell against Jon’s thick, furry chest, gripping on to Jon’s harness. “Yeah, you like having your chest rubbed, huh?” Austin said, his hands running in circles around Jon’s big pecs and flicking his meaty nipples. Austin’s cock rubbed against Jon’s round, hard, furry gut. “MMM-MMOOOOORE!” Jon rumbled as he pushed Austin closer, crushing the smaller man against his huge chest. He pushed and rubbed Austin’s face against his rough chest fur, manhandling Austin as he ran him over the mountains of his pecs, laughing at the ease he controlled Austin’s body. Austin groaned and tried to speak, but his mouth was full of Jon’s beard and chest fur. Jon adjusted his grip and pushed Austin over to his dense, hairy armpit. “TASTE MY MUSK, SIR,” Jon bellowed as he pressed Austin into his pit. He held him there forcefully, ignoring Austin’s squirming attempts to back up. “BREATHE DEEP, SIR, LET THAT BULL MUSK TAKE OVER,” Jon said. Austin finally gasped and breathed in deep, his mind feeling cloudy and overwhelmed by the force of Jon’s potent, masculine pit musk. “THAT’S RIGHT, SIR. GIVE IN TO YOUR PUP,” Jon boomed. “JUST MY MUSK IS STRONGER THAN YOU…IMAGINE WHAT MY MASSIVE MUSCLES ARE ABOUT TO DO TO YOU,” Jon said with a chuckle before finally letting Austin back up and take a breath. Austin coughed and sputtered and gasped, but didn’t have long to recover. Jon dropped down on all fours, his fists slamming into the ground next to Austin. “RUUUFFFF! GRRRUFF, MMPH!” Jon grunted in pup-speak, the ground shaking, 3000lbs of muscle bear looming in front of his Sir. “GRRRRFFF, ARRRRRF!” Jon rumbled as he surged forward and bumped his huge chest against Austin, who staggered backwards. “Heh, yeah pup, you wanna play now?” Austin said, teasingly, moving backwards and sideways to try to avoid Jon’s massive paws and looming muscles. “You wanna roughhouse with your Sir?” “MMMPH, UUURRRFF!” Jon grunted as he his cock pressed against his furry gut and smeared pre around until it dripped to the muddy grass. He moved forward until his chest and gut were over Austin, then he dropped down, pinning his little Sir before he could escape. “Fuck, pup, you’re so, uugghh, heavy!” Austin groaned underneath his massive pup, pushing his arms up to try to keep his chest off the ground so he could breathe. It was a futile effort; Jon kept pressing down harder with his body weight until Austin was crushed against the dirt, mud smearing on his back. “Can’t… move!” he grunted, and he felt the pain of Jon’s bulk crushing him into the ground. “MMMMPH, MORE!!” Jon grunted as he squashed his little Sir. He could feel Austin wriggling and writhing underneath him, trying to escape. Jon knew he couldn’t. He was too big. And master was too small. He pressed down harder and wiggled his huge meaty ass in the air, reveling in the effortless power he wielded. “HAHAHA, CAN’T ESCAPE, HUH? I’M SO… BIG!” Jon laughed as he scooted his torso forward. He planted two massive fists into the grass, strong calloused fingers digging into the soil easily, then pushed himself up off the ground. He hovered his torso over Austin, then scooted forward. Jon coughed as he shifted around, trying to stand up until a massive battering ram of a cock slammed into his chest. He was knocked over again, a smear of warm pre slicking up his chest. He looked up to see the giant cock looming over him; it stretched from Austin’s belly button to his chin, and it throbbed almost as if it had a mind of its own as he looked at it. “MMMPH, SIR IS SO SMALL!” Jon bellowed as he stretched forward and pressed his elbows into the ground. “AND PUP IS SO BIG!” Jon’s cock suddenly surged forward, pinning Austin onto the ground. Austin fell over onto his back, knocked down by the throbbing, hot cock that pressed down on his torso. It bucked and throbbed as Jon pressed more of his tonnage down, pressing into Jon harder until he was unable to move. Austin wrapped his arms around the cock to try to control it, but it was no use. “Pup, whoa ther—oomph!” Austin grunted but was interrupted by Jon’s aggressive humping, the head of the huge cock punching him in the chin, Austin’s jaw reeling from the impact. “HEH, MMPH, UNNNGGG,” Jon grunted as waves of pleasure shimmered up his spine as he felt his cock press and rub against the furry torso of his tiny master. “EVEN MY COCK IS STRONGER THAN YOU NOW, SIR!” Jon’s huge hairy balls slammed against Austin’s own hard cock again and again as he humped, causing Austin to get turned on again despite cumming just minutes ago. Jon’s cock smeared pre across Austin’s slick torso until the whole thing was coated in pup slime. “AARRROOOOF, GGRRRRRRPH, MMMMPH, BIG!” Jon grunted mindlessly, his thoughts lost in pup space, thinking only about his own pleasure for once. He rubbed and rubbed his massive cock against Austin’s lean, hard, muscular body, harder and faster, pressing the smaller man into the dirt again and again, lost in pleasure. Eventually, he shifted down and re-positioned his massive cock until he felt Austin’s tight, furry hole. His Sir’s hole. “MMMMMPH YEEEEAAAAAAHHH,” Jon breathed as he pushed and humped against Austin’s ass, the massive head pressing hard against Austin’s hole, knocking on the door, insistent, undeniable. The huge head split Austin’s hole apart and started pushing in, a moment of pain rippling through Austin before the cock slipped out and rubbed between Austin’s legs instead. “Pup!” Austin gasped, his back and ass grinding roughly against the grass and mud underneath, rainwater and sweat pooling beneath him as Jon started to rub a furrow into the yard. He looked up and back at the massive, jiggling, harness-bound pecs above him and tried to wriggle out from under Jon. “MMMPH GOTTA MAKE IT FIT!” Jon bellowed. He lined up his huge cock against the warm, tight slit underneath him and pushed harder, thrusting forward aggressively. “Aaaahhhh, pup wait!” Austin groaned as the massive cock head battered him, pushing up against his hole and trying to break in, but only succeeding in pushing Austin’s whole body around. Austin tumbled roughly against the ground, grass and dirt scraping against his back and shoulders. “FUCK, TOO, MMMPH, BIG FOR SIR’S HOLE!” Jon groaned as he pressed harder than ever and pinned Austin with his huge, furry gut, trying to hold him in place. Austin braced himself against the ridges of Jon’s roid belly and felt his hole splitting open, and he groaned in pain. But even lined up perfectly, it wouldn’t squeeze in. “HA, GRRRPH, TOO BIG! HAHAHA!” Jon laughed as he slipped his cock out from Austin’s furry crack and repositioned himself until his cock hovered over Austin’s torso. Jon slammed back down on Austin with all his weight and power. The big bull sighed and grunted and groaned as he resumed frotting on his minuscule master. “Pup, stop, you have to, mmmph, wait!” Austin pleaded, his eyes suddenly bulging with fear. He had underestimated just how massive and powerful his pup was. He patted his hand against Jon’s tremendous, furry flanks trying to get the big man’s attention, but Jon ignored him at first. Austin slapped harder, smacking the muscular lats of the huge man humping into the ground. “Stop, pup, you’re too heavy!” Jon froze in place as his master tapped him, instinctively listening to Austin. Rain fell steadily on his wide back as he panted and huffed, looming over his smaller sir as he lifted his tonnage off Austin’s smaller body. But then Jon remembered. His master had ordered him to use him however Jon wanted, as hard as he wanted, until Jon came, no matter what master had said, no matter how hard he begged to stop. Austin’s exact words rang in his mind. He tilted his head to one side and his tongue lolled out of his mouth, and he looked down at his smaller sir hungrily. “NO, SIR!” Jon boomed. He positioned himself carefully over again Austin and then slammed his full body weight back down on him, pinning him effortlessly. “BIG BULLPUP’S GOTTA CUM!” Jon grunted, his mind obeying his Sir’s original orders to the T. He started humping harder and faster than before. He pressed his gut down heavier against Austin, and a new wave of pleasure washed over him. The furry gut pressed down on Austin’s head and face, pinning him back and down even harder. He readjusted, digging his massive hands deeper into the dirt, scraping up more of the lawn as he braced himself to pound his master harder and faster. “No, pup, this is, pppfftt, too much, I can’t breathe!” Austin sputtered, his mouth slimed by spurts of pre that got more and more viscous as Jon humped and pumped harder. He felt the mud around him rising up and onto his pecs and shoulders as his giant pup rutted deeper into the grass. Austin could feel Jon’s balls growing tighter and firmer as he approached climax. Pup ignored his master, lost in pleasure. “MMMMMPH, RRUUFFFFFF, MORE, BIGGER!” Jon groaned and muttered, his heavy chain lock jingling against his harness, his beard draping down to the grass. Thick, meaty muscles jiggled and shook and flexed as he humped his master recklessly, mindlessly. He looked down and under himself, watching Austin wriggle and writhe against his enormous cock, and he laughed, truly seeing the size difference between them now, his vision blurred in a red haze of lust. Jon had become truly gigantic, but all he could think about was MORE. “OHHHHH, MMMPH, HHAAAHHH,” Jon breathed as he imagined himself swelling bigger still, feeling pride as he knew his master would approve, determined to grow and grow endlessly for him. His cock bucked and swelled, burying his Sir harder into the mud. “HHAAAAARRRRRROOOOOOOOF!” Jon bellowed as his cock exploded, jets of hot white cum spraying against Austin’s face until he was in a puddle of mud and cum, more and more fluid filling up the furrow Jon had dug with his enormous cock. When he was done, pup collapsed down, squashing Austin under him. He felt his little Sir squirm and twitch underneath him. Jon reveled in his superior power and strength. He groaned and sighed as his cock throbbed one final time. Snapping out of his trance, Jon pushed himself up then kneeled upright and let Austin stand. Austin sputtered and coughed and caught his breath as Jon looked down at him, his blue eyes glittering through the slits of the pup hood. “Sorry I got a little carried away, Master, but I needed to cum sooooo bad!” Jon boomed as he sat back on his ass, shaking the ground. “No no pup, *cough*, you were perfect and I might’ve bit off more than I can chew, but you obeyed, *pfft*, Sir’s orders to the letter!” Austin said as he wiped goop off of his torso and face. “Sir is so proud of you, big bullpup!” Jon grinned uncontrollably and reached up to take his pup hood off, revealing more of his masculine face and perfectly trimmed beard. “You mean it, Sir?” he asked sheepishly, a lump welling up in his throat. “Of course, dad, you’re the best pup a master could ever ask for!” Austin said as he reached his arms up, indicating he wanted to be lifted up. Jon obliged and he lifted Austin up. Austin straddled Jon’s torso as best he could and rested his knees against Jon’s chest and his feet against Jon’s gut as he leaned in for an enormous, sloppy, slimy kiss. Their tongues wrestled, Jon’s bigger and thicker but giving way to Austin’s aggressive thrusts. Jon leaned back, supporting his Sir with his enormous hands, and he laid back onto the grass, rain falling softly on them, washing away the sweat and cum that coated them both. “I love you, Sir,” Jon rumbled. “I love you too, pup,” Austin said right back. Both of their cocks swelled back to life as they kissed, harder and harder, Jon’s growing until it pressed against Austin’s perky hole, Austin’s cock smaller but harder and rubbing against his bullpup’s enormous, furry chest. They both laughed and groaned as the rain started falling harder, both of them feeling utter contentment.
  2. Previous chapters: Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Austin orders Jon around, then awards him with a custom-made pup hood. Jon fucks Austin in his excitement. Austin sat in the living room with his computer out, working on a paper for his final term of college, wearing short gym shorts and a tank top. The room wasn’t quiet though; the living room hummed with the sound of loud music coming from the garage, punctuated by the occasional deep grunt, metal clanging, and the whole house shaking as huge amount of weights were moved around by the giant lifting in the garage. Jon was on hour 3 of his afternoon lift and he hadn’t shown any sign of tiring. This was after 3 hours this morning of working nothing but legs; he was out working chest and shoulders now. Austin stretched his arms and realized he was thirsty. He reached for one of the thin chains around his neck, next to the padlock key he wore everywhere, and brought a basketball whistle up to his mouth. He blew sharply, the high-pitched sound cutting through any sort of music or noise in the house. Austin felt the ground shake and Jon’s booming voice rumbled through the house. “COMING, SIR!” Within seconds, Austin could hear and feel the booming rumble of his massive stepdad bounding into the room like an excited puppy, the house shaking as nearly a ton of muscledad thumped into the living room from the garage. Jon’s head scraped against the ceiling as he ducked into the living room, his naked body dripping with sweat from lifting, his face lighting up in excitement as he saw Austin looking at him expectantly. “Sir!” he boomed as his cock twitched, then dropped to his knees in front of Austin and set his sweaty hand on Austin’s. “What do you need, Master?” Jon said, looking in Austin’s eyes intently, eager to serve. Austin had recently cut Jon’s hair into a crisp, short mohawk and trimmed his beard. The beard looked sharp and angular and came down to his nipples, where it mixed together with his dense chest fur, which was currently matted down with sweat. Jon’s musk washed over Austin like a wave as his pup awaited his order. “Get me a beer, pup,” Austin said. “I’m thirsty.” Jon grinned and bounded to his feet, his heavy metal chain clinking, his head bumping into the ceiling and sending down a rain of plaster and spreading cracks across it. “Yes Sir!” he rumbled before galloping to the kitchen. He returned shortly with a can of lager, cracking it open for Austin carefully with a fingernail, the can looking comically small in Jon’s enormous hands. He handed it to Austin. “Thank you, pup, you listen so well,” Austin said, reaching out and rubbing his hand over Jon’s huge thigh. Jon flexed it in response, making it swell out harder and rounder. Austin’s hand came away coated with sweat, which he rubbed on his own tank top. “Heh, thank you Sir! Can I get you anything else?” Jon boomed from above as he looked down as his little Sir. His cock stiffened as he did, sweat dripping down onto the carpet like he was fresh out of the shower, eager to serve his master. “No bullpup, now get back to lifting!” Austin said as he turned his attention back to his computer. “Yes Sir!” Jon said seriously and headed back to the garage. In a few seconds, the familiar clanking of metal and deep, loud grunting resumed. Austin drank his beer and got back to work on his paper, but a couple minutes later he realized he was hungry too. He was having a hard time focusing, especially after Jon had visited. Austin had trained Jon well over the last couple months to come when called and do as he said, and Jon was more than happy to oblige. The whistle had proven to be an exciting addition to their at-home dynamic. Austin blew the whistle again, and once again the huge muscle bear rumbled into the living room. This time, Jon’s cock was semi-hard and leaking; a string of precum oozed out from his huge mushroom head and smeared against his sweaty thighs. He dropped to his knees again and rested his huge chin on Austin’s knees. “Hi pup, I need a snack to go with this beer. Get me one of my meal prep kits,” Austin said as he reached forward and ran his hand through his bull’s spiky mohawk. A mist of sweat bloomed from Jon’s hair as Austin’s rubbed it. Jon grinned, then rose to his full height again. “Coming right up, Sir!” he rumbled, sweat dripping down on Austin. “You look so cute down there in your chair, Sir,” Jon said. His cock pulsed and thickened as he looked down at Austin, a drop of pre drooling out of his slit. “Thank you, pup,” Austin said as he reached out and dabbed up the pre onto his finger, causing Jon to shudder in pleasure. Austin licked it up, savoring the sweet salty flavor. “Now go fetch me my food,” Austin said, keeping Jon focused on the task before losing him to his raging libido. It had been 4 hours since the big man had last cum, and Austin knew his balls would need to be drained again soon. Jon shook his head to refocus, then turned to go to the kitchen. A few minutes later, he returned, dropped to his knees, and delivered a hot meal prep container full of rice, chicken, and broccoli, ready to be eaten. “Good bullpup! Make sure you’re eating too, Jon. Did you have the jug of gainer shake I left for you for your afternoon lift?” Austin asked as Jon breathed heavily on him. “Yes, of course Sir! I’m definitely getting hungry for dinner soon, though,” Jon said. “What are we having tonight?” he asked. “Meat, big guy. You’ll see,” Austin said, grinning up at his stepdad. “I’m gonna go upstairs and take a little rest after my snack,” he said as he got up with his beer and food and stood next to Jon. Austin had to crane his neck to look up at his dad now. Jon reached down to scratch his hairy bush, bouncing his stiffening cock around as he did. “Sounds good, little Sir,” Jon rumbled, twisting his neck around to see over his massive chest and gut to look down at his stepson. “Please let me know if you need anything, I want to help make you feel good,” Jon said, a twinge of desperate longing in his voice. His cock bulged up bigger, stiffening and rising up to his belly button; it oozed out another dribble of precum, which dripped down to the carpet. “That’s what your Sir likes to hear,” Austin said. He reached up and gave Jon’s cock a good, hard squeeze, causing more pre to burble out of it. Jon gasped and shivered. “Now go finish your workout,” Austin ordered before walking by the giant and heading upstairs to their bedroom. “Yes Sir!” Jon boomed and then waddled back to the garage. Austin grinned; his stepdad was completely obedient to him now, and the two of them were both very happy together. He wanted to show his appreciation to Jon and bond them closer together. He had been waiting for this moment. Over the last several months, their relationship had grown more and more intense as Jon grew bigger and bigger, surging taller, thicker, and wider every day. They did everything together and were totally devoted to each other to help reach their mutual goals and make each other happy. After the last couple whistle blows, Austin felt even more strongly than ever that it was time to give Jon his present. Austin made his preparations and finished his food and beer, then once again whistled for Jon. His obedient bullpup bounded up the stairs, then wedged himself into the door, smearing sweat all over the door frame, his head cracking the wood of the frame before emerging into the bedroom. “Sir? What’s all this?” Jon asked as he looked at Austin, who was wearing his leather harness and a jock strap. “Jon, you’ve made such incredible progress over the last 8 months, growing both physically and emotionally for me, learning to trust and love me as we have bonded,” Austin said as he stepped closer to Jon. “Get on all fours, pup,” Austin ordered, pointing down to the carpet. Jon obeyed immediately, thumping down to the floor on all fours, eagerly looking at his Sir, awaiting instructions. Austin leaned down to Jon’s ear. “I can’t imagine life without you now, Jon. We just keep growing more intensely close as you grow bigger and bigger. You feel it too, right?” Austin said, his voice in a deep whisper. Jon shuddered and took a deep breath. “Yes Sir, so much, more intense every day. I live to serve you, Sir, and I’ve never felt better about anything in my life. I have such a clear purpose, and it feels so good to lift, eat, and grow every day as I make you happy,” Jon said, his voice wavering. “I… I want to be your bullpup forever, Sir,” Jon whispered, on the edge of tears. “Good, pup, good. Look at how big you’ve grown,” Austin said as he walked around Jon’s enormous frame, rubbing his hand over the vast expanse of Jon’s hairy, sweaty back, squeezing the huge, round form of his ass, before trailing his hand down Jon’s hamstring. “Truly a freak, bigger than I could have dreamed of. You were made for growing and obeying, weren’t you?” Austin said as he completed his loop. “I was made to grow and serve you, Sir,” Jon echoed, his voice quivering. “Well pup, I’m glad you feel that way too. Show me your devotion,” Austin said before positioning himself in front of Jon. Austin lowered his jock strap and pulled out his hard, thick rod, leaking precum, red and angry-looking. “Suck a load out of your master,” Austin commanded. Jon obeyed. He surged forward aggressively, gobbling up Austin’s cock and taking it in balls deep all at once. The force of it was enough to knock Austin over, and he was suddenly pinned, helpless under the power of Jon’s mouth and hands. The force of Jon’s suction was intense, and Jon hummed and purred as he went to town on his Sir’s cock. “Aww fuck yeah bullpup, such a good boy, you need Master’s seed don’t you?” Austin groaned, the power of Jon’s tongue and sucking on the verge of pain. “Mmmph, mmmm!” Jon grunted as he sucked harder and faster. “Slow down pup, that’s it, get in a rhythm,” Austin said as his cock throbbed. He was so close to climax. Jon’s muscles, his musk, his obedience drove him crazy, and he was almost always ready to share his seed with his eager bullpup. Jon reached up and planted one huge hand on Austin, pinning him down to the carpet effortlessly as his mouth continued to suck and slurp. His tongue flicked and his lips tightened. On most men, Austin’s cock would have been substantial, girthy and a generous 7”. To Jon, it felt small in his oversized mouth, but it just made him want to suck and pull harder. He hummed and groaned as he tasted more precum. “Such a devoted bullpup!” Austin groaned as he got closer to shooting his load. “Gonna make me, ung, make me shoot such a, ahhhhh, big fuckin’ LOAD—!” Austin bellowed as he came, and Jon greedily gulped up every drop until Austin was thoroughly drained. Jon helped Austin get to his feet when he was done, then sat back on his heels. Even seated like that, he was taller than Austin. “How was that, Sir?” Jon said, gently rubbing Austin’s hair with his huge mitt. “Good job pup, you’re so good at that now!” Austin said, steadying himself against Jon’s massive shoulders. He turned to get the box at the foot of the bed. “I got this for you, custom made, in your favorite colors,” Austin said as opened the box. “Oh, Sir! What is it?” he rumbled, tears welling in his eyes. He opened it and gasped. “Really, Sir!?” “Yup. Put them on,” Austin said giving Jon space. Jon pulled did just that, and in a moment a black, green, and orange neoprene pup hood covered Jon’s head and face, his long beard trailing out of the bottom, his excited eyes beaming down at Austin through the holes in the mask, curved bull horns in place of the usual pup ears of his hood. A matching leather harness wrapped tight around his enormous chest, hugging his pecs, shoulders, and traps in all the right places. Jon huffed the intense smells of neoprene and leather that suddenly filled the room and his cock throbbed. “It’s PERFECT, Sir!” Jon grunted, his voice muffled in the pup hood. He turned and looked in the floor-to-ceiling mirror that Austin had installed in their bedroom a couple months ago. “I had both measured to fit your supersized body, bullpup. They hardly believed me when I shared your chest size and hood size and thought it was a joke.” Austin said, grinning at how happy Jon was. “They’re both adjustable and fairly stretchy to keep up with your continued growth, at least for a little while!” “BaarrRROOOOF!” Jon bellowed as he saw himself. His cock throbbed harder and harder, growing longer and stiffer as he stepped closer to the mirror. “Mmmmmph, grrrph, rrrawwwwrph!” he grunted as he flexed his left bicep and rubbed his mask against the sweaty bulging muscle. “ARRFFF!” Jon said as he turned back to Austin and bounded towards him. “Heh, bullpup likes it I see!” Austin said as Jon reached down and effortlessly lifted him up, carrying him and rubbing his mask and beard all over Austin to express his love. “RRRUUUFFFF, ARRFF, GRRRRFF!” Jon rumbled before tackling Austin on to the bed, the combined weight of them both causing the re-inforced bed to groan and the house to shake. Jon nuzzled against Austin, rubbing his pup hood and beard and chest and hands all over his master’s little body, pinning him with his own bigger body, crushing him under nearly a ton of beefy muscle. “AAAARRROOOOFFF, GRRRPH, MMMPH, YEAAAHHHH!” Jon grunted, hardly capable of words now, letting the pup space fully take over his mind. He rubbed and cuddled against Austin hard, his rock-hard cock leaking precum juice all over his little master, totally carried away. “Pup, hold on, that’s, ooof, flip over so I’m on top!” Austin grunted under the immense weight of his overly-excited bullpup. Jon stopped his grunting, wrapped his huge hands around Austin’s torso, and flipped them both around until Austin was on top of Jon. Jon cocked his head to one size as he looked up at his little Sir. “Arroo?” he grunted, then rubbed Austin back and forth on his sweaty torso. “Ruuufff, arruuuff, ggrrooooff!!” he boomed. his huge cock pressing dangerously close to Austin’s tight, furry hole. “Yes big man, I need your bullpup seed inside me now!” Austin grunted as his own hard cock rubbed against Jon’s firm, furry gut. “RRRRUUUHHH, GRRRRR!” Jon groaned as he positioned his master over his massive cock. It was as thick as Austin’s forearm with an apricot-sized head. It burped up more precum, seemingly on command as if it knew Jon needed more lubrication, then Jon rammed Austin down on it hard. “AARRROOOOOOOO!!!” Bullpup bellowed as he speared Austin, pushing in as far as it could go. “Ahhhhh godddddd!” Austin cried as he was suddenly filled with the massive cock. Jon slowed down for a moment, sensing that his master needed time to adjust to his size. The girth of his huge stepdad’s cock pushed him to his limits, and he writhed as his ass struggled to adjust to Jon’s thickness. He stabilized himself against Jon’s leather harness, his own cock throbbing and getting closer to another climax as he huffed in the scent of Jon’s musk and the leather from the harness, taking deep breaths to calm down and open his hole wider. “URRRGGG, HHUUUNNFFF, ARRRFFFF!!” Jon grunted as he stared to pick up speed again, his bull horns bouncing on his hood as he submitted deeper into pupspace. He pounded relentlessly inside his master, working up to full strength, slamming in deeper as Austin’s furry jock hole opened up wider to accept his stepdad’s massive cock, impaling the smaller man over and over again, pausing only briefly to bring both of his huge arms up into a double bicep pose, reveling in his enormity, furry pits emanating fresh waves of jock musk. Austin groaned mindlessly, holding on for the ride, his cock rubbing mercilessly against Jon’s sweaty torso. The two of them ground against each other for as long as they could stand it, Jon using his little master like a sex toy and Austin frotting his cock against Jon’s enormous, meaty gut and chest, Jon’s metal chain clanking against his new harness. Austin groaned as his cock shot another load, smearing cum all over the big bull’s belly and pecs and harness, mixing with Jon’s sweat. His hole clamped down harder around Jon’s tree trunk cock. “AARRRROOOOOO!!!!!” Jon bellowed as he exploded inside Austin. Jon could feel his insides bloat with cum as Jon unloaded inside of him, jets of hot bullpup cum filling him up. Jon kept howling until he was completely drained, his huge balls pumping out cream for over a minute. Finally, he lifted Austin off of his baseball bat cock inch by inch until he popped off with a wet squelch, cum splashing down onto Jon. Jon held Austin suspended in the air over the bed. “Grruufff, arrrrfff, mmmphhhh!” bullpup Jon grunted as he pulled Austin in closer, nuzzled against him, and spread his master’s seed all over his huge body, marked with his master’s cum, honored to serve him for life.
  3. Previous chapters: Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Jon enjoys a BIG dinner and Austin makes sure his growing stepdad gets nice and full, which gets both men worked up quite a bit. The doorbell rang right as Austin walked inside. Perfect timing! The pizza delivery guy was here. Austin had ordered it ahead in anticipation of Jon being done with his workout. “Dinner’s here!” Austin yelled. “Come into the kitchen and get ready to eat, bull!” Jon’s thunderous footsteps followed; the big man positioned himself in front of their back door, leaned down, and started wedging himself through the doorway. He had already expanded it himself accidentally weeks ago, and the half-fixed under-construction wider, taller doorway was already barely big enough to allow him to pass through. Austin watched as Jon crawled through the entrance on his hands and knees, grunting and squirming to fit his wide shoulders and round butt through the doorway, shimmying in until he was inside. Austin just watched, the front door momentarily forgotten; he loved watching his big bull struggle to fit into the normal-sized world. “Ooof!” Jon grunted as he rose to his full 10’ tall height, his head thumping into the ceiling, sending plaster dust raining down into the kitchen. He just grinned and blew some of the dust off his nose. He stepped forward and leaned against the counter, his gut and bulge flopping down onto it, post-cum from his load smearing onto the granite through his white compression shorts. His triceps flared out bigger as he leaned his weight against the counter. His gut gurgled and then groaned loudly, audible throughout the main floor of the house. “Sir, I guess I’m really ready to eat today!” Jon said with a laugh as he stared eagerly at his master. Austin opened the door to get the pizzas. “Big party?” the delivery guy said as he handed him 8 extra larges. “Heh, not exactly,” Austin said as he took them, balancing them carefully. Austin set the pizzas on the kitchen counter, the house filling up with the smell. “Alright bull, ready to eat big? You’re not gonna stop until I tell you, ok?” “Yes Sir!” Jon boomed enthusiastically. He grabbed one of the boxes, the extra large box looking so small in his huge hand, and opened it. His eyes lit up and his gut rumbled again as he saw the pizza. “Meat lovers! My favorite. Thank you, Sir, I don’t deserve all this,” Jon said. “Of course you do, big man. You’ve been working so hard lately and growing so fast for Master. You think you can finish all of these?” Jon scoffed and stepped closer to Austin, looming over him; Austin only came up to his bulging belly button. “Sir, I’ll bet you that I can finish all eight of these in less than half an hour. By myself.” the big man rumbled, looking down at Austin with a smirk. He rubbed his hairy gut, the fur scraping against his calloused hands. It responded by gurgling again, louder than before. “You’re on, pup, I’d love to see you try,” Austin said with a grin. With that, Jon grabbed a quarter of his first pizza. The meat lover’s was stacked with bacon, sausage, pepperoni, and chicken. He folded the pieces over on top of each other until they were stacked up together into one huge piece. He opened wide and took a huge bite; half of the quad slice disappeared into his maw and he chomped down on it loudly. “Mmm,” Jon groaned around a mouthful of pizza. “So good. Gotta feed the beast to grow bigger!” he said and slapped the side of his big belly. It jiggled, then rumbled some more, demanding more food. Jon opened wide and stuffed the rest into his mouth, devouring 4 slices in just two bites. “Heh, that’s right bull, keep eating,” Austin said. “Clock’s ticking! Here, use this to wash it down,” he said as he got a 6 pack of Leinie’s from the fridge and slid it over to Jon. “Mmm, yeah!” Jon boomed as he wrapped a hand around one of the cans and pulled it out. The can looked comically small in his massive paw. He carefully snapped it open, then lifted it up to his mouth, his massive arm bulging into a bicep flex as he did. He guzzled the whole can down in seconds, crushing in it his grip as he got to the end. “BBBBRRUUUPPPPP!” Jon erupted as he tossed the can aside and reached down for more pizza. Jon kept eating. It only took him five minutes to demolish the first pizza. He set the box aside and opened the second one. He tore into that one with the same ferocity as the first one, his hunger seemingly not abated at all. “Good bull, keep eating. Don’t stop until I say so,” Austin said, staring intently as his pup. “I’m always so hungry these days, Sir. Just trying to eat enough to keep growing is a lot of work, you know?” Jon said before chomping down on another stack of slices. “I know, pup. You work so hard to grow for your master, and I’m so proud of you. You really know how to put it away, huh?” Austin said, stepping closer and reaching up to rub Jon’s huge round tummy. “You’re gonna keep eating and getting bigger, right?” Jon groaned. “Yes Sir,” Jon sighed between bites, then ripped another huge piece off and kept eating. After finishing off the fourth pizza (and Austin eating a little bit of one of them), Jon paused. His breathing had become faster and more labored, and he had started sweating profusely, his bull musk filling up the kitchen along with the pizza smells. He looked over and caught his reflection in the glass of the cabinets. He rubbed his belly and chuckled. “What’s so funny, pup?” Austin said. “It’s hard to believe how big I’ve grown, Sir. I look at myself sometimes and marvel at how enormous I am,” Jon said, straightening his shoulders and swelling his chest and gut out, emphasizing his full size. “Yeah, well you should be proud of it, pup. You’ve worked hard for your gains! Tell me how much you like being big, pup,” Austin said, looking up at his submissive dad with a smirk. “I love it so much. Everything is thanks to you, Sir. Your leadership and guidance are responsible for it all,” Jon said, a quiver in his voice. “All of what, pup? Show me.” Austin ordered, motioning him to flex. “All of this,” Jon growled, then raised his arms up into a huge bicep flex until his fists bumped against the 10-foot ceiling. The round, thick peak of his arms rose up like a mountain, matched only by his bowling-ball delts and thick traps. “And this,” he continued, reaching down and rubbing a huge hand over his round, furry gut. “I’m outgrowing the damn house thanks to you, Sir!” Jon boomed excitedly. He scraped his head against the ceiling, again sending plastery powder raining down on both men. Jon’s Underarmour-bound package flopped onto the countertop again, pushing aside one of the pizza boxes. “I’d still be an average weakling without you. Look at me now! I’m the biggest man in the world!” Austin stepped closer to feel his massive muscle pup. He reached up and tugged on Jon’s thick heavy chain necklace, grabbing him by the padlock and pulling his head down to look at his master. “Are you done growing yet, pup?” “No Sir! I’ll keep growing as long as you want me to. As big as you want. Whatever it takes!” Jon rumbled, growling intensely, his voice shaking with emotion. “That’s my good pup, you make your Sir so proud,” Austin said, leaning in closer and whispering in Jon’s ear, their beards scraping together. “You’re gonna keep growing bigger and bigger until I say you’re big enough, how do you like the sound of that?” Austin purred. Jon’s big body shook, shivers of pleasure and anticipation rattling through his body. His package throbbed and a wet streak of pre smeared across the countertop. “Yes Sir, *huff*, anything for you, Sir!” he breathed desperately, pizza breath washing over Austin. “Good pups listen to their master!” Jon said, his eyes suddenly welling up with tears. He reached down, wrapped his massive arms around Austin and lifted him up in to a huge bear hug. “Gotta keep growing for my boy, for my Sir!” Jon’s furry torso scraped against Austin’s and Austin could feel the intense heat radiating off his huge body. Sweat and pizza grease smeared against Austin as the two rubbed against each other, both of their cocks throbbing. “Good pup, your master loves you very much. Now put me down,” Austin commanded. Jon took a deep breath to compose himself, his arms still wrapped around Austin. “I love you too, Master, so much,” Jon whimpered, a strange sound from such a big man, before setting Austin down. He wiped the tears away from his eyes. He was overcome with intense devotion. “Do you know how big bulls like you keep growing?” Austin asked, and motioned towards the remaining pizzas. “Gotta eat big to grow big!” Jon boomed, repeating the words that Austin had told him many times over the last 7 months. Jon scooped up another four slices of pizza, crushed them together into one big stack, and stuffed them into his mouth, cramming them all inside. *crruuunnnchhh* and suddenly all that was left in his huge hand was a line of crust. “Good pup, that’s the way. You’re looking bigger already!” Austin said, encouraging his pup, rubbing the side of his mammoth gut. Jon smacked the other side of his belly with a huge hand, slapping it repeatedly, his firm, hard gut barely shaking from the impact. He chuckled around his mouthful of pizza before swallowing it shockingly fast. “UUUURRRRPPP!” Jon belched, the deep, resonant burp making the glass on the cabinets rattle. He followed that up with several smaller burps as he reached down and cracked open another beer. He lifted it up to chug it, but in doing so his huge bulge bumped the half-empty pizza box onto the floor, sending several slices tumbling down onto the ground at Jon’s feet. “Uh oh,” Austin said, looking up at his pup knowingly. “You know my rule about wasting food, pup. What is it?” he said, flicking a nipple on Jon’s bloated pecs. Jon shivered and groaned between panting breaths. “No wasted food, no matter what,” Jon rumbled. He licked his lips and his cock throbbed again, more pre leaking through his compression shorts. “That’s right. Get down there and clean it up,” Austin said, gesturing down to the ground where the fallen pizza lay face-down on the kitchen floor. “Yes Sir,” Jon grunted. The big man, dropped down to his knees, causing the room to shake, then got down on all fours. Even on all fours, he was still almost as tall as Austin. He reached for the pizza before Austin patted him on his shoulder and shook his head. “Not like that pup,” Austin said. He came around to Jon’s front, rubbing a hand across Jon’s expansive, muscular back, feeling the lumpy ridges of his enormous traps. “With your tongue. Get every little bit that you dropped. No wasted food, no matter what,” Austin said authoritatively, looking his bull right in the eyes. Jon nodded obediently, his face flushing red, his breathing heavy. “Yes Sir!” Jon boomed, then dove down to lick up the fallen pizza off the floor, his metal chain clinking around as he did. He slurped, grunted, and moaned as he licked the floor, getting every fleck of sauce, every chunk of sausage, every crumb of crust until all that remained was a wet spot from his own spit. “Licking food off the ground, god you are such a greedy, hungry mutt aren’t you?” Austin teased, scratching the dirty blond mohawk and rubbing his fingers over Jon’s neck rolls. “I need it all, Sir, gotta have more to grow bigger for you, Sir,” Jon breathed. Jon felt dirty, but his cock leaked onto the floor, belying his true feelings. “Good bull, such a hungry pup, you make me so happy,” Austin cooed, moving his hand to Jon’s back and rubbing the bulging traps through the big bull’s back and shoulder fur, feeling the muscles twitch against his calloused hand. “Mmmph, need MORE, Sir!” Jon rumbled as he sat up, eye-level with Austin for a moment. “Still so hungry!” “Good bull, let’s keep eating then, I’m still timing you!” Austin said as he stepped closer. He rubbed his hands against Jon’s round belly and swollen pecs, every inch of him furry and sweaty. He could smell Jon’s pizza breath. He leaned in closer until he planted a firm kiss on Jon’s big lips. Jon groaned as his master kissed him. Nothing felt better than getting Austin’s approval and praise. Nothing felt better than Austin’s lips on his. Jon reached out and rubbed his big hands up and down Austin’s lean, hard body, feeling the firm muscles dance and twitch as they ground against each other in lust. Jon’s cock throbbed again, soaking his compression shorts even more. His gut groaned in hunger. “Still so HUNGRY!” Jon boomed, then stood back up to his full, towering, 10 foot tall height until his head bumped the ceiling. Austin had to back up to not get knocked over by Jon’s huge pecs, gut, and bulge as he stood. Austin looked up at his giant stepdad looming over him; there were still times that even he was shocked at how big Jon was growing. Jon reached down and resumed eating with renewed vigor, gobbling up the pizzas with obscene grunts, chewing, and growling. In just a few more minutes, Jon polished off another 3 beers and 3 more pizzas until there were only a few pieces left. The big man was huffing and puffing and his gut had swollen out rounder and fuller than before. Jon raised the last stack of 4 slices up to his mouth and crunched down on them, breathing heavily out of his nose, chewing slowly. He groaned and swallowed. “DONE!” the big man boomed, smacking his round gut loudly. A deep, resonant burp escaped his lips, and he jiggled his gut proudly in front of Austin. “Such a big meal, Sir. So full,” he groaned. He reached a big fist up and rubbed pizza grease off of his lips and mustache, then licked his hand to make sure he got every bit. But Austin knew the big bull still had more room. “Good job, pup! So proud of you. Such a BIG bull. But you took too long, bull,” Austin said, holding up his timer, which read 30 minutes and 24 seconds. “You must still have room! You’re not done yet,” Austin said, and Jon groaned. “Go over to the living room and sit down in front of the couch. I’ve got more for you coming,” Austin said, rubbing Jon’s full, furry tummy and looking up at his big pup. Jon looked exhausted and overwhelmed. He puffed out his cheeks and exhaled, which turned into a deep, rumbling burp that rose up from the depths of his belly. “Y-yes Sir,” was all the big man could manage before he lumbered off to the living room. Jon sat down heavily and spread out his legs, his tremendous gut spilling into his lap and pressing against his bulge. He closed his eyes and rested for a moment, reaching up to run his fingers across the heavy metal chain and lock that wrapped around his neck, something he did to comfort himself and remind himself of his Sir’s love. A moment later, Austin came out holding three blender containers, each one full to the brim of a vaguely brown-looking sludge and a big red funnel. “Ok bull, now let’s top off that big binge with some protein, huh?” Austin said as he set the shakes down on the coffee table and walked between Jon’s huge legs to get closer. With Jon sitting, Austin was eye level with the big bull. “Three huge, thick gainer shakes to wash down all that pizza, how does that sound?” Jon groaned and rubbed his already full belly. “Y-yes SirUUUUPPP,” Jon rumbled as his words turned into another burp. “Gotta eat big… to grow big,” he groaned. “That’s right pup. Now hold the funnel in place,” Austin ordered, handing Jon the red funnel. Jon set it against his lips and tilted his head back; they had done this routine many times before and Jon knew what to do. “Here it comes,” Austin said as he reached up and poured the thick, brown protein-rich sludge into the funnel. “Mmmmmph,” Jon moaned as the shake hit his tongue, his appetite renewed as he tasted the sweet chocolatey sludge. He drank it with shocking speed, slurping and gulping, his Adam’s apple bobbing up and down, mega-sized gulps loud and clear for Austin to hear, big lips sucking, eager for more. In mere seconds, the entire shake was gone. Austin pulled the empty blender container away, leaving Jon slurping and licking for the final drops. “Good bull, I knew you weren’t done yet,” Austin said with a smirk, smacking Jon’s round, sweaty gut. It gurgled in response, the shake filling in any gaps between the pizzas that filled up his belly. Jon breathed hard and held the funnel against his belly, letting some of the remaining shake leak against it. He closed his eyes and licked his lips then burped in satisfaction. “More…” he sighed dreamily as he rubbed the top of his belly and grinned. His cock throbbed harder, straining the elastic and threatening to escape the tight confines of his compression shorts again. He raised the funnel up into the ready position. Austin just grinned and readied the second shake. “Here it comes, bull, such a good pup growing bigger for his Sir,” Austin said as he lifted up the second shake and started pouring. Jon moaned contentedly as the second shake hit his lips and he started sucking on the funnel loudly. Austin could hardly pour fast enough to keep up with Jon’s eager gulping, the sound of which filled the room with obscene slurping, chugging, guzzling noises. Austin could see Jon’s belly swell bigger, rounder, tighter as Jon consumed every drop. It went down shockingly, unbelievably fast considering how full the big man was. Jon came up for air with a gasp, rumbling a deep chuckle as he caught his breath. He palmed his vast gut and rubbed it. “Uuufffff, Sir, huuufff, I’ve never, rruurrff, been more full,” Jon panted, feeling his upper belly. “It’s so, grrroooofff, TIGHT!” the big bull groaned. “That’s right, bull, SO tight and round, so full of growth fuel,” Austin said, rubbing Jon’s belly in wide, slow circles. “You’re doing SUCH a good job for your Sir, getting so big, so round and strong,” Austin said, heaping praise upon praise. Jon broke into a broad, exhausted grin and closed his eyes . “I don’t know if I can have any more after that,” he said between short, labored breaths. A small burp escaped from his lips and he groaned some more. “So full!” “Aww come on bull, I know you can take a little bit more,” Austin said, leaning in closer and pressing his own hard bulge against Jon’s gut. Standing, Austin was about the same height as Jon was sitting down, and his cock was at just the right height to press against Jon’s thick pecs and the top of his round, hard gut. Austin rubbed up and down against the bulky torso of his huge stepdad and groaned. “Kiss me, pup, I need to taste you,” Austin whispered. Jon grunted and grinned in response. He opened his eyes and leaned forward to kiss his Sir. They locked lips, Jon’s bigger face and beard and lips smothering Austin’s, his thick tongue easily overpowering his Sir’s aggressive embrace. Austin lowered his pants and underwear so he could rub directly against Jon’s massive chest and belly; Jon growled when he felt the slick, warm precum spreading around between his enormous pecs. They both breathed heavily through their noses and grunted and groaned, their hands exploring each others’ bodies freely, greedily, hungrily. Austin could taste the thick, sweet protein shake on Jon’s lips and relished the flavor. After being apart for months, they still savored the benefits that came from being together all the time. After what seemed like an eternity and not enough time, they separated, both of them catching their breath, both men’s cocks throbbing and leaking pre. “Mmmph, well damn you taste good, pup,” Austin said with a grin. “Yeah? What do I taste like, son?” Jon said with a smirk, his cock emerging from the top of his Underarmour, the head of it as big as Austin’s fist. Austin stepped closer until he was inches away from his stepdad’s face. “Like protein and sweat and cum and MAN,” Austin growled, rubbing his beard against Jon’s. “And knowing you’re going to grow even BIGGER has got me so worked up,” Austin said, pressing his cock against Jon’s chest again and smearing more pre around. “Y-yeah!” Jon breathed, then jerked as a belch slipped up and out of his maw. “Always bigger, always more,” Jon intoned. “Good pup. Let’s see that big bicep and let me smell you, bull,” Austin commanded. Jon obeyed. He raised up an arm and flexed his mighty bicep, exposing his hairy, sweat-matted hairy pit. A wave of Jon’s BO funk filled the living room. Austin grabbed the massive, round bicep, leaned forward, and buried his nose in Jon’s armpit, rubbing it around in the deep, sweaty, furry crevice, huffing in the heady smell and groaning with pleasure. Jon shifted his weight and reached over with his other arm to lightly press his Sir into his musky pit, holding him there and feeling his master wriggle against his firm grip. “Mmmmmph, so good,” Austin breathed as he came up for air, sniffing his own upper lip, savoring the musk that coated his beard. “Glad you like it, Sir. I think that’s getting stronger the bigger I get!” Jon said sheepishly. “Yeah? Let’s test that theory,” Austin said before rubbing his nose in the damp, furry pit cave again, huffing in the heady smell, groaning as he did. “What do you think? Muskier? Sweatier?” Jon asked as he held Austin’s head in place. Austin gasped as he came up for air. “Definitely,” he said between breaths. “The bigger you grow, the better you stink,” Austin said, grinning. “Heh, that’s right Sir!” Jon rumbled, looking quite pleased with himself. He pressed Austin against his furry pit again, forcing his Sir to get another huff of his potent bull musk. His master looked so cute desperately rubbing and licking and sniffing his deep, muscular pit. “Ruff, Sir loves my stink, and I do too,” Jon said after Austin had his fill. Jon leaned over and sniffed his own pit and sighed, enjoying his own musk. “Well if growing bigger makes you stink better, then let’s keep going, bull,” Austin said. “And to grow bigger, my bull needs to drink one more big, thick, rich gainer shake. 14,000 calories in every one of these babies, and it’s all for you, pup,” Austin breathed, his voice rising in excitement. He stepped back to grab the last pitcher. Jon breathed more heavily and reached forward to rub his drum-tight belly. “But Sir, I’—URRRPPP—I’m so full!” Jon pleaded, his belly sloshing and groaning as he adjusted his weight. “Now pup, listen to your Sir. You know you can’t say no to me,” Austin said, stepping closer with the shake. “But, but Sir I — BBRRUUAGHHH — I can’t fit, any more, huffff, food in this big belly!” Jon groaned as he palmed the vast expanse, his belly swelled out to the max, heavy and furry and round. “Good pups listen to their masters, don’t they?” Austin cooed, relentless, insistent. He returned to where he was standing before and pressed his cock against Jon’s tight belly again. “Good pups liste—BBBRUUHHHHP—listen to their masters,” Jon repeated. “And are you a good pup?” Austin said, his eyebrow raised, a confident smirk on his face. “I’m a good pup, Sir,” Jon breathed, his eyes welling with sudden emotion. He was filled with a desperate need to make Austin happy, and to do that he needed to drink that shake. He felt a second wind, and his mouth salivated in anticipation of the thick, rich liquid. He grimaced and flexed, his traps and neck bulging with muscle. “Give me more, Sir. I need MORE!!” Jon raised the funnel back up to his lips, his massive bicep flexing as he did, and he tipped his head back again. Austin wasted no time, dumping the final shake into the funnel. Jon moaned, desperate to chug it down, and he guzzled it all up faster than either of the previous shakes, his grunts and chugs turning into greedy-sounding growls. When the final shake was gone, Jon put the funnel in the container and Austin set it aside. Both of them growling and chuckling. Austin pressed his cock against Jon’s rock-hard gut and meaty pecs, and started grinding against his giant stepdad. “Such a huge, hungry, growing PUP, I’m so proud of you, Jon,” Austin breathed as he bucked against Jon, frotting aggressively against Jon’s furry beef. Austin suddenly felt something huge and hard rubbing between his legs; he looked down and saw Jon’s freed, hard cock, thick and long as a Pringles can, rubbing up and down his legs until the tip of it pressed against Austin’s tight balls. “Of course, Sir, I’d do anything for you, Sir, gotta grow BIG for you, Sir!” Jon panted, working into a frenzy, sweat dripping off him and mixing with Austin’s precum, making a slick, furry surface for Austin to rub on. Jon’s cock spurted out another wad of precum, soaking Austin’s balls, and Austin returned the favor, leaking more between Jon’s furry pecs. “So FULL for you, Sir!” Jon bellowed, feeling bigger than ever before. “That’s right bull, always GROWING, turning into my prized muscle daddy BULLPUP, you want that don’t you, dad?” Austin said through gritted teeth, picking up speed as he desperately humped against the wall of beef in front of him, Jon’s round gut trying to push him backwards. “Yes Sir, gonna be the BIGGEST damn bullpup for you!” Jon groaned, his cock flaring up harder and longer as he approached climax. “Aww yeah, fuck yeah,” Austin panted, his hands squeezing and rubbing his stepdad’s impossibly enormous delts and arms. He leaned in and kissed Jon hard, both of them moaning and panting and growling as their tongues wrestled, both of them desperate for a taste of each other. They separated and Jon tensed his arms, flexing the round, hard biceps for his Sir. Austin squeezed harder, his comparatively small fingers hardly denting Jon’s massive muscles. Jon grinned. “Mmmm, even after all that food, son, you know what?” Jon rumbled. “What’s that pup?” Austin groaned. Jon’s pushed out his belly into full roundness, full hardness, squeezing Austin’s cock harder between his gut and Austin’s own muscular body. His gut groaned and gurgled loudly, like it was still empty. “I’m still HUNGRY!” Jon roared. Austin groaned and exploded, his cock spraying cum all over Jon’s chest, jets of it getting all over his bullpup’s huge beard. Jon’s cock followed suit, gushing cum against the underside of Austin’s throbbing balls, cum and sweat and fur mixing together in a moment of perfect release. They went on shooting for almost a minute, both of their bodies shaking and throbbing, cum dripping all over the carpet underneath them, smearing all over Jon’s huge body and Austin’s muscular legs and abs. Austin collapsed against his pup, utterly spent. Jon wrapped his enormous arms around his Sir and squeezed, securing his son against his cum and sweat-soaked body. “I love you so much, pup,” Austin whispered in Jon’s ear. “I love you too, Master,” Jon breathed and both of them felt a contentment that few on Earth ever get to experience.
  4. Previous chapters: Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Austin takes Jon out to dinner at Fogo de Chao, the all-you-can-eat steak restaurant, and Jon eats his fill. Jon expresses his devotion to Austin in front of everyone, and the guys take their relationship to the next level. Chapter 6 — Christmas Break Dinner Austin walked into Fogo de Chao and checked in with the receptionist. Jon followed behind, ducking his head slightly to make sure he cleared the doorway and having to open both doors to fit his prodigious width through. When the receptionist looked up from his book, he gasped as he saw the enormous man suddenly standing in front of him. He eyed the big man up and down, perplexed by the comically small polo shirt that did a terrible job containing his stupendous bulk. He wrinkled his nose as the wave of BO stink emanating from the mountainous muscle bear hit him. He almost said something – people usually dressed and cleaned up before coming to this place – but gulped when he heard the big man’s stomach growl audibly. He quickly ushered them to their table after Austin confirmed their reservation. The table seemed small as the two big men approached it; it was right in the middle of the restaurant. Jon looked around a little nervously, self-conscious of how much he stood out in such a public space, especially in his too-small polo and tight gym shorts that only came halfway down his tree trunk thighs. “Sir, I didn’t know we were going to such a nice restaurant,” Jon said as he tugged a little at his shirt, trying to make sure his round belly was covered. “Only the best for my big guy!” Austin said as he sat down. “You look incredible. Everyone should be jealous of how massive and powerful you look, Jon. Give me a flex,” Austin said. Jon grinned as his master’s praise perked him up, and he brought his fists together to flex, his arms and traps stretching the already tight fabric of his polo. “Mmm yeah you like?” Jon said as he grunted. “Hell yeah pup, now let’s fill up that big tank and help you grow! Big bear needs plenty of protein to pack on more size,” Austin said. Jon carefully lowered himself into his chair. It was built for normal-sized people, not 500+lb musclebears, and it creaked ominously as he shifted his bulk down. He could see himself in a big mirror off to one side of the room and marveled at how huge he looked compared to the normal-sized tables and chairs and people; he hadn’t been out to many public spaces other than the gym since growing so much. His shoulders were three times the width of the chair he sat in, and his long legs easily stretched over to Austin’s side of the table. He scratched his salt-and-pepper beard and grinned, his bulge tenting a little in his tight jock; he liked what he saw. The waiter came by and explained how the restaurant worked, but they were both familiar with the all-you-can-eat steakhouse. Jon looked up at the waiter. “I’m gonna have this card on green all night, so you better keep it coming. I have a BIG appetite!” he said as he gave his belly a firm slap, the loud smacking sound making some other diners look their way. Jon blushed but grinned too. “It takes a LOT to fill this tank!” “Of course, Sir,” the waiter stammered as he dished up the mashed potatoes and fried candied bananas. “Jon, just how big are you these days? Just so the waiter knows what he’s dealing with,” Austin said, egging on his big musclebear dad. “Sure, son. I’m 6 foot 8 and just north of 500 pounds, as of this morning anyway. I’d like that number to be MUCH higher by the end of this meal!” Jon said with a laugh. He rubbed his gut, which gurgled loudly. “This tank needs to be FULL by the time I’m done!” he guffawed. Jon grabbed the whole platter of potatoes, brought them up to his mouth, and gobbled them up, spooning and scraping at the plate until they were gone. “I’ll, uh, be sure to get you more of those,” the waiter said, looking back and forth between the strange couple before taking off. Austin laughed and shook his head. Jon looked back at Austin, eager for approval. “Did you like how I did that, Sir? His face when he saw me rub my belly was priceless!” Jon said, bumping the table as he adjusted his swelling bulge. “That was great! I love how confident you are, pup, showing off for me like that. Get eating, bull. I’m gonna go get some things from the salad bar. Want anything?” Austin asked. Jon was too busy cramming bananas into his mouth to properly respond. “Whatever you don’t eat, I’ll take care of,” the big man said. Austin walked by Jon on his way over, rubbing his hand across his stepdad’s fresh high fade haircut and brushing his bulge against Jon’s wide shoulders. The first gaucho-waiter approached Jon’s table, looking slightly trepidatious at the massive man at this small table. “The house special?” he said, offering his skewer of meat. There were 3 medallions of glistening beef on the skewer, each one about twice the size of a hockey puck. “Just slide the whole thing onto my plate!” Jon said. He leaned back, the chair creaking painfully, and lifted his arms up to flex his biceps. “Gotta eat big to get big!” “S-Sir,” the waiter started, “I… very well,” he said, realizing he couldn’t say no to such a big man. He slid all three chunks of the house special onto Jon’s plate, the juice of the meat spreading around his plate, steaming and salty. “Mmm,” Jon growled as he skewered one with a fork, brought it up to his mouth and tore into it, devouring half of a chunk in one bite. Austin came back with two huge plates of veggies, cheese, and more, taking some for himself but leaving most of it for his hungry musclebull stepdad. “Looks like you’re off to a good start, pup,” Austin said. Jon just grunted and kept eating, his eyes glazed over in a food trance. More waiters came by, and Jon always took as much as he could, meat piling high on his plate. He ate it all; sausages, chicken, lamb, every cut of beef they had, bacon-wrapped pork chops, the juice of it all getting into his salt and pepper beard and dripping down onto his new polo shirt, which slowly rode up his belly as the meal went on. He even ate the gristle. “Look at you go, Jon,” Austin said after about 20 minutes. “You’re my big hungry bull, huh? Every bite is gonna make you bigger and stronger,” he said. “Yeah,” Jon said, rubbing a fist against the juice dripping down his salt-and-pepper beard. He paused briefly to wash down another filet mignon with a whole glass of wine, which he downed in three big gulps. “Are you impressed by how much I can take down? Been eating more and more everyday while you were gone,” he said as he tore into another lamb chop. “Seems like my appetite is growing as fast as my muscles are!” he said, taking a deep breath. His chest and belly swelled out and the table shifted back towards Austin, rattling the dishes and glasses. “Hell yeah, bull, you’re eating as much as a whole damn offensive line!” Austin said. “The more you eat, the bigger you grow!” “That’s – URRPP – right!” Jon said, a loud burp escaping his lips, drawing another round of stares from nearby tables. “Starting to sweat there, big guy,” Austin said, noticing the pit stains and U-shaped wet spots under his pecs. “Got the meat sweats, dontcha?” Austin teased. “Mmph,” Jon grunted, his mouth full of meat. He reached up and scratched at the fur that was busting out of the collar of his polo, his bicep swelling as he did. “Come on dad, I know a big lug like you can eat more, keep going!” Austin said. Another waiter approached the table to offer more of the bottom sirloin. “More,” was all Jon said. The juicy, warm protein triggered a feeding frenzy that went on for half an hour, Austin encouraging him, Jon eager to impress. Eventually, Jon got up, his massive gut bumping the table. His chair cracked dangerously as he did. He rose to his full height and towered over Austin. “Gotta lighten the load,” he said, hefting his sizable bulge as he grinned down at Austin, and waddled over to the bathroom. The big man opened the door and a face squashed into his belly as he collided with another dinner guest, causing the smaller man to stumble backwards. Jon didn’t budge. “Oops, sorry there bud. Sometimes it’s tough for me to see down that far!” Jon said with a laugh, measuring himself against the little guy he had nearly knocked over. He looked in the bathroom mirror and noted that the guy came up to his nipples, which poked out prominently from his painted-on polo. “Heh, uh, excuse me,” the little guy said, his cheeks red with embarrassment, and he scampered off. Jon approached the stall and realized he’d have to really contort himself to get in there. He turned sidewise and squeezed in just barely, his gut scraping against the door frame. He closed the door and turned, his shoulders pressing against the sides of the stall; he had never felt bigger. As he came back to the table, Jon’s stomach fluttered when he saw Austin, looking handsome and muscular in his tight dress shirt, his high-and-tight and lantern jaw and trimmed beard making Jon’s cock stir in his jock. He was so lucky to have such a handsome master. He approached Austin’s chair from behind and pressed his belly and bulge against him. “I’m back,” Jon purred from behind Austin, his deep, rich voice vibrating against Austin’s head. “I could feel your footsteps from halfway across the room, big man,” Austin said as he looked up at his stepdad. “You ready for round two?” he said as he beckoned Jon to sit again and resume his feasting. “Hell yeah,” Jon said as he sat down, then chomped into another lamb chop. Jon kept eating for another 45 minutes, stopping only to eat some carbs and wash it all down with more wine. Austin talked to him about lifting and football and the gym, Jon nodding and grunting and occasionally adding in a few comments before resuming his gluttony. The waiters asked them if they were close to wrapping it up several times, but Jon just said “Keep it coming,” “More!”, or “Not done yet!” Austin got more and more worked up as the meal went on, seeing his giant stepdad filling himself up with meat. Austin’s package bulged under the table, throbbing for most of the meal as he watched Jon stuff himself with reckless abandon, Austin watching his huge muscles twitching with every subtle movement. Jon seemed to swell up bigger as he ate and ate. After an hour and half, his shirt was half-soaked with patches of sweat on his back, chest, and arms, and it was stretched taut over his round, solid, full gut. He was breathing heavily through his nose, grunting and groaning after each bite. “Slowing down there, champ?” Austin said. “Come on, pup, you’re not done yet, are you?” *Huff, grunt* “No!” Jon said defiantly, forking up another big bite of steak and stuffing his face. “Gotta get full for you, Sir.” “I’m so proud of you, Jon,” Austin said. With that, he pushed his own fork off the table and onto the floor. “Oops. Get that for me, pup,” Austin said. Jon rose out of his chair, once again bumping the table, taking a huge breath and stretching before erupting into the biggest, loudest burp either of them had ever heard. Everyone in the restaurant looked over in shock and stared at the massive brute whose shirt only covered half his gut. “Unf, that’s better,” the big man said as he thumped on his belly and grinned. He lowered himself to his knees and reached for the fork. “Jon, look at me,” Austin said while Jon was on his knees. His big stepdad looked up at him, his blue eyes glistening. “Yes Sir,” Jon said, holding the fork in his hand. He steadied himself against Austin’s firm thigh. “Open wide, bull,” Austin said as he brought a huge piece of filet mignon to Jon’s mouth with his fingers. Jon opened his hungry maw and took the whole thing, his tongue brushing against Austin’s fingertips, chewing a couple times before gulping it down. “Mmmm good bull, still so hungry and eating right out of my hand,” Austin purred and he rubbed his hand through his stepdad’s short hair. “Yes Sir, feed me more, please,” Jon purred in his deep, rich voice, still on his hands and knees, needing it so badly, any sense of embarrassment overridden by the need to serve. “Good pup,” Austin said, as he got another piece of steak and brought it to his stepdad’s eager lips. “Such a good bull.” Jon grinned and plucked the steak from his master’s fingers gently, showing how much he appreciated it, then chewing quickly and swallowing hard. He opening his mouth up for more, begging shamelessly, panting like a dog. “Yeah bull, keep eating more,” Austin breathed as he leaned down to feed his stepdad. “Just imagine how big you’re gonna grow from this single meal.” “Mmmmph, more,” Jon purred as he gobbled up another piece, then another, then another until Austin’s plate was almost empty. “You’ve done such a good job these last few months, Jon,” Austin said, “Growing bigger than I ever imagined and devoting yourself to me.” He brought another piece of meat to Jon’s lips and the big man obediently slurped it up, his big lips wrapping around Austin’s fingers and leaving behind a trail of saliva. Guests at the other tables looked in shock and bewilderment at the enormous older man eating out of his stepson’s hand. “I couldn’t ask for a better father, especially after losing mom last fall. I want you to be part of my life forever, closer to me, pup.” He rubbed Jon’s huge shoulder and trap, feeling the firmness and size of Jon’s mass. Jon breathed heavily, overcome not just with several pounds of steak in his gut but with intense emotion unlike anything he had ever felt. “I want that so badly, Sir, I need it, to be your bull,” Jon breathed. It felt like everyone in the restaurant was watching them, this huge salt-and-pepper hulk leaning in close to his fit, muscular, younger companion. People whispered and ogled, and Jon felt nervous and sweaty, but elated and excited too. “Are you ready to be bound to your Sir, pup?” Austin said, as he reached behind him. Heavy, bulky chains clinked against each other as he pulled out a big metal padlock and chain necklace from a hidden pocket of his jacket, big enough to wrap around Jon’s massive neck and traps. The lock gleamed in the light. Jon’s heart fluttered. “You will be my good, obedient bull pup and live to serve your master. I will always be there for you no matter what, and you will be there for me and do as I say,” Austin said. Jon scooted closer and lowered his head into Austin’s lap. “Yes Sir, I want that more than anything Sir, I would be honored,” Jon said, his voice quivering with emotion. “Bullpup is ready to serve you.” “Good bull,” Jon said, lifting the heavy chain, wrapping it around Jon’s enormous neck and locking it into place. “Look at me, pup,” Austin said, and Jon did so, tears mixing into his salt-and-pepper beard. Austin put on his own smaller chain necklace, a large metal key at the end of it; Jon knew it was for his lock. Austin reached behind Jon’s head, gripping his neck rolls, and pulled him in for an aggressive, hungry, passionate kiss. They pressed together roughly, their tongues fighting against each other, beards scraping coarsely as they panted through their noses, grunting and growling. “Mmmph, good pup,” Austin said as he broke away, leaving Jon wanting more. “Now let’s finish this meal and get home. There’s more of that waiting for you there,” Austin said as he grasped the sizable bulge in his shorts and squeezed, making a wet spot appear through his khakis. “Yes, Sir!” Jon boomed loudly as he rose to his full height, towering over his smaller stepson. His gut bulged out prominently, his polo only reaching down to his belly button; belly and pec meat swelled out of his shirt, the sleeves straining to contain his massive upper arms, which had already pushed up to his delts. His shorts tented obscenely, and the meat sweats had only increased, jock musk spreading around their table from Jon’s potent pits. Jon reached up and felt the heavy chain and lock around his neck. It felt RIGHT, like something had been missing and was now in place; it was cool against the furry expanse of his chest, a reassuring, comforting weight against him. “Sir?” Jon said. “Yes, pup,” Austin said as he looked up. Jon suddenly reached down and grabbed Austin, hooking his big hands under Austin’s arms and lifting him right out of his chair like he weighed nothing. He lifted him up as high as he could, then lowered him down so they were face-to-face, their bodies pressing against each other. “I love you, Sir!” Jon said loud enough for everyone in the restaurant to hear. His cheeks were red, but his cock throbbed as he said it. Jon leaned in for a forceful kiss, grunting and planting his tongue on Austin’s lips. Austin could taste the steak and wine from dinner as he kissed back, Austin’s feet dangling several inches off the ground. Jon could feel the eyes and hear the shocked comments of everyone at the restaurant, and at first he felt nervous, self-conscious, and exposed. But as he kissed Austin and pressed his enormous, muscular chest against Austin’s, everything was right in the world, and all he felt was happiness. Finally Jon broke their kiss, and he held Austin at arm’s length, grinning. “Let’s go home NOW, Sir,” Jon said, and he scooped Austin up into his arms to carry him out. Austin looked around for the waiter and said, “Check please!” Jon and Austin could barely keep their hands to themselves on the way home, both of them reaching across the cab of Jon’s huge truck to rub the others’ leg or arm or neck, both breathing hard. When they pulled into Jon’s house, the big man came around to the other side to carry Austin inside. Jon scooped Austin’s formidable weight into his arms and waddled towards the front door. This close, Jon could smell Austin’s cologne, and Austin could smell Jon’s musk and meat breath. “What a great dinner, Sir,” Jon said as Austin fished his keys out of his pocket. “Glad you appreciated that, bull, you deserve it,” Austin said as he opened the door, Jon bending down to let him reach the keyhole. They entered, Jon turning sideways to fit both of them in, and kicked off their shoes. “Set me down,” Austin ordered and Jon complied, then straightened back to his full height, looking down at Austin. “Ever since you started growing, I’ve had these feelings,” Austin said as he stepped closer to his stepdad. “More than just pride or happy that we were coming together more after what happened to mom.” Austin planted his hands on Jon’s big pecs, the material of the new polo shirt smooth but damp from Jon’s sweat, and squeezed, massaging Jon’s huge chest. His fingers bumped against Jon’s big chain and heavy metal lock. “Mmmm,” Jon growled, “Me too, Sir. I—I had such an empty space in my life. As I dedicated myself to your desires, it just felt so good. So right. And I started to see the strong, handsome young man you’re becoming, and I—MMMMPH,” Jon groaned as Austin suddenly pinched his meaty, sensitive nipples through his shirt, causing the big man to squirm and flex his pecs. “Yeah, you started coming around, huh?” Austin said, teasing Jon’s nips some more. “It feels right to do what you’re told and obey your Sir, doesn’t it?” Jon breathed a heavy, shuddering sigh and nodded silently, staring intently at his master. Austin moved his hands lower until he got to where the polo didn’t cover Jon’s gut. Austin palmed Jon’s huge, round belly and bounced it up and down, the firm expanse of it furry and warm. “Like growing so big for me,” Austin said as he looked up at Jon, admiring his salt-and-pepper beard that came down to his chest. “So much bigger than me now, bull, quite the change from a few months ago.” “Y-yeah,” Jon said. He reached down and adjusted his huge bulge. “Did you like when I kissed you at the restaurant?” Jon said, sounding a bit sheepish. “I just couldn’t help myself.” “You mean like this?” Austin asked as he stepped closer until they were pressing together. He reached up and around Jon’s thick neck rolls and pulled his head down and planted another kiss. They made out in the entryway for over a minute, hands exploring each others’ bodies. Austin remembered the mirror in the entryway and turned them so they could both see themselves making out, finally fulfilling an unspoken desire that had grown over the last few months. They both groaned as they saw the size disparity, Jon half a foot taller and twice or three times as thick as Austin. Jon reached his hands under Austin’s shirt and felt his firm, furry abs, and Austin grabbed Jon’s enormous upper arms and squeezed. The big bull flexed them in response, Austin’s fingers spreading apart under the huge muscle. Finally they separated, both of them breathing hard, grinning and chuckling. “Jon, looks like you’re bigger all over,” Austin said as he looked in the mirror. He reached down and brushed a hand against Jon’s swollen package. Jon flinched and grinned, a shiver running up his bloated body. “Heh, yeah, I guess so…feels…” Jon started but trailed off as he reached down past his gut to squeeze his huge cock, causing his arms and shoulders and traps to flex. “Kinda good, right?” Austin said. Jon nodded wordlessly, gulping and breathing hard. “Why don’t you take your shirt and shorts off and show me how big you’re getting?” “Sure,” Jon breathed, his deep voice sounding strong but nervous. He grabbed the neck of his new polo and tore, and the wet fabric somehow still ripped apart easily, broken by Jon’s tremendous power. Austin had to help pull the sleeves past his bulbous biceps. His heavy chain clinked around as he took the shirt off. Then Jon stepped out of his shorts, the floor shaking as he did. All he was wearing now was a stuffed jock strap, which was stained from months of soaking up jock sweat. His massive balls poked out of the bottom and the outline of his massive cock head bulged obscenely. He adjusted his package and bounced it up and down for effect, admiring his own size in the mirror. “Jeez, Jon, you’re so… wow…” Austin said as he stepped forward and felt Jon’s enormous chest. The meaty muscle felt solid and heavy in his hands. Jon flexed, bouncing the pecs up and down to show off for his stepson. “You’re so big,” Austin finished as he rubbed Jon’s chest and across his bulging traps and bowling ball delts, tracing the lines of tiger stripe stretch marks. Smears of sweat made Jon’s blonde chest fur curl into ringlets, and Austin’s hands came away soaked with salty, musky sweat. His bullpup had grown so big, so fast. Jon just growled and purred as Austin explored his big torso. Jon looked at himself in the mirror and grinned, his now comparatively lean son worshipping his big, thick body; his cock got harder and harder, precum soaking the sweaty jock strap. “My big bull needs lots of attention and praise,” Austin said breathlessly, accelerating his rubbing, feeling the musclebear’s furry round shoulders, bulging biceps, and round gut. “Yeah, that’s right, and I’m just getting bigger and bigger, Sir,” Jon grunted as he raised an arm and flexed, causing Austin to feel the massive bicep. “You’re turning me into such a beast, Austin, just lifting and eating and feeling horny all the time,” Jon growled. “That’s right, my big horny beast, with a big package to match,” Austin grunted as he reached down and rubbed Jon’s cock. They rubbed and grunted for a minute, Jon feeling Austin’s lean body, which felt so good in Jon’s big hands. He looked in the mirror and saw something he never expected to see. “I never thought I was gay before… before all this,” Jon sighed as he ran his big hands over Austin’s muscular shoulders and arms. “I – I’ve never done anything like—“ Jon started before Austin shushed him. “This is what we’ve both wanted for months, haven’t you felt the tension building between us? And someone your size, with your muscles, who has worked so hard to grow so much, you deserve to feel good, you deserve your master’s full attention,” Austin said. He had Jon raise his left arm up before burying his face in Jon’s sweaty, hairy armpit, rubbing the dank pit sweat all over his nose, lips, and beard, licking and huffing the heady stink. “Yeah, you’re right,” Jon sighed, and reached over to press Austin’s head harder against his sweaty pit. “You like how I stink, don’t you?” Jon growled. Austin rotated and pressed Jon against the wall of the entryway; Jon looked down to see himself being worshipped by his jock son and everything felt so right. Austin came up for breath and grinned. “I’ve been waiting for this ever since I saw you were getting bigger,” Austin said, gasping for air, his left hand groping against Jon’s lat and gut while his other reached down to rub Jon’s hard, leaking cock. “I can’t hold back any more. You’re my big beast and I’m going to keep growing you bigger and bigger,” Austin breathed while he moved closer to Jon’s bearded lips. “And a big, hard-working musclebear like you deserves a master who treats him right,” Austin said before planting a hard kiss on Jon’s lips. Jon kissed back just as aggressively, making Austin lean back as the bigger man’s full weight pressed against him; they struggled back and forth over who was in physical control, and the tension made both of them hard. “Fuck yeah,” Jon breathed as they broke their kiss, his hands rubbing harder against Austin’s hard, muscular body, feeling the football jock’s firm shoulders, meaty chest, and big arms. “My hot little jock stud, turning me into a big daddy musclebear, treating me so good. I’d do anything for you, little Sir,” Jon rumbled. “‘Little Sir’, I love when you call me that,” Austin grunted as he pushed his brute hard against the wall again, Jon’s sweat leaving an imprint. “I need more from you. 500 pounds is big, but it’s just the beginning. And you need one more thing to eat today,” Austin said before reaching up to push down on Jon’s big traps. Jon dropped to his knees, the floor thumping as he did, and Austin pushed his shorts to the ground. His own cock, rock-hard, red, and leaking, bounced out of his boxer briefs and smacked Jon in the face. “Been waiting to do this since Thanksgiving,” Austin said. “Open wide, pup,” he commanded. Jon leaned down and slurped up Austin’s eight inches in one go. Austin gasped as his big, obedient stepdad started working his sweaty cock. Austin reached down and ran his fingers across Jon’s prickly high-and-tight, feeling the neck rolls that had grown over the last few months, then ran his hands over his pup’s chain necklace. This big brute was his, and now he was on his knees, his big head bobbing up and down rhythmically, servicing him. Jon wrapped his arms around Austin, gripping the football jock’s meaty ass in his big hands, and he sucked harder. “This is where you belong, pup, on your knees serving your master,” Austin said. He looked down and had a great view of Jon’s massive shoulders and traps, his barrel chest, and his massive arms flexing and bouncing as he gave the most intense blow job Austin had ever received. Jon grunted and slurped, sucked and growled. “You like it down there, huh?” “Mmmph, mmmm,” Jon hummed as he slurped up Austin’s long, hard cock. He looked up at his master, Austin’s thin chain necklace and golden key gleaming around his neck. His heart fluttered, their eyes meeting. “Fuck yeah, that’s a good muscle pup, slurp out every drop of my jock load and grow more,” Austin groaned as he leaned his hips against Jon’s beard and gripped his huge, hard traps. “You’re growing so big, so fast Jon, such a big freak, such a good pup, so good for your Sir aren’t you?” Austin gasped, getting closer to blowing his load. “Mmmmph!” Jon grunted as he sucked faster, the massive musclebear pleasing his younger master. Jon reached down to stroke his own enormous cock through his jock strap, pre leaking profusely. “UuunnnnghhUUUUGHHHHH,”Austin groaned as he came, filling his stepdad’s mouth with creamy seed. “Yeah, take it, pup!” Austin growled. Jon hungrily gulped down every drop, chugging it like a man in the desert who had finally reached the oasis. Jon licked his lips, swallowed whatever remained of Austin’s load, and looked up at his master. “You taste so good, Sir,” he said. Jon wrapped his arms around Austin’s legs and gripped his ass firmly. “Now it’s MY turn!” Jon lifted Austin up easily as he stood, throwing him over his shoulder, manhandling his smaller stepson and carrying him up the stairs and into his bedroom. He threw Austin across the room, who sailed farther than Jon expected until he landed roughly on the king size bed. “GODDAMN I’m strong now!” Jon said. He took a deep breath and flexed his chest, then reached up and rubbed the salt-and-pepper fur covering his pecs. “So BIG!” He grabbed the heavy chain and lock around his neck and pulled and flexed, his biceps and shoulders bulging with muscle, the metal clinking around. “Whoa there pup!” Austin said as his huge stepdad approached the side of the bed, waddling over and shaking the floor with heavy, purposeful steps. His cock tented the jock strap, soaked with precum. “Eager after all this build-up, aren’t you?” “Yeah!” Jon grunted. He was breathing heavily through his nose, his chest heaving up and down. “Take that jock off, I want to see your cock,” Austin said as he crawled over to the edge of the bed. Jon pulled the jock down until his cock was free. The massive, thick log bounced up and slapped against his huge musclegut. “Brrrooof, rrrruuuffff, mmmph,” he breathed as he stepped out of the jock and adjusted his heavy, tight balls. He squeezed his cock and a long drip of pre leaked down from the tip and onto the floor. He had to have been at least 10” long and as thick as a beer can. “Oh yeah, bull, look at this monster,” Austin said as he hefted his stepdad’s package and scooted himself to the edge of the bed. “A huge cock for a huge bull, huh?” “Rrrrrooofff, that’s right,” Jon grunted as he stepped closer. “You turn me on so much, Sir. Your tight, muscular body, your sweet cum, always taking charge and looking after me and my progress, giving me someone to serve,” Jon breathed as he loomed over Austin, looking down at him from over his barrel chest and round belly. “I need to give you everything, Sir.” Jon rubbed his bulbous cock against Austin’s cheek. “Need to grow so much bigger for you, Sir.” The BO stink from Jon’s bulging crotch filled Austin’s nose with a heady funk. “Yeah, that’s right Jon. Imagine how big you’re gonna be by spring break… or even graduation time!” Austin said. Jon’s cock bucked and twitched and leaked a dribble of pre down onto Austin as he thought about that. Austin reached up and squeezed Jon’s massive cock; he could barely get his hands all the way around it. “MMMMPH boooowwwrrruuff,” Jon growled. “How big do you want me to get, Sir?” “So big you outgrow all your clothes. So big you can’t fit through doorways.” Austin licked the head of Jon’s huge cock. “Grrrroooooff…” Jon sighed, bucking his hips and flicking his nips as Austin stroked. “So big you can’t live a normal life and have to let your little master take care of you.” Austin kissed the cock head, wrapping his lips around it briefly. “Uuuuurrrrffff, grruuuuff!” Jon growled, his deep booming voice rumbling above Austin’s head. “My big trophy musclebull daddy pup. You want that?” Austin said, squeezing and stroking Jon’s cock. “Aaaroooooooofff!” Jon breathed. “Then give me your seed, pup,” Austin said as he opened wide and slurped up his stepdad’s massive cock, struggling to fit it in, gulping and choking and gagging until the entire cock was in his mouth. Jon groaned as pleasure washed over him. He reached down and gripped his stepson’s head in his huge, calloused hands and roughly pressed him against his massive tool. “Fuck yes, Sir, take your bullpup’s big cock,” Jon groaned as Austin bobbed against his cock. “Baaarrroooooff!” Jon looked down, past his enormous pecs and forest of chest hair which hadn’t been there 5 months ago, past his round, solid, furry gut which pressed against Austin’s forehead, down to the sight of his dominant jock stepson slurping a load out of him, and he was overcome with emotions. Jon grunted and growled in a haze of animalistic lust, slamming into Austin’s warm mouth and throat, months of pent-up sexual pressure overflowing out of him. “Fuck yeah, so fuckin’ huge, growing BIG for you Sir, YEAH!” Jon boomed as he got into a rhythm. “Just imagine how much BIGGER I’m gonna get, all for you, Sir, GRRRROOOOOOF!” Jon paused and pulled out, leaving Austin gasping and drooling, then reached down and grabbed his stepson under his pits. He pushed forward, scooting Austin onto the bed, and climbed on top of his smaller Sir. His massive thighs straddled the big football player easily, and he leaned down and forward until his huge cock pressed against Austin’s lips again. “Yeah pup, show me your true size and power, fuck my face,” Austin said as he opened wide. “Uuunnnfff, uurrrff,” Jon breathed as his battering ram cock invaded Austin’s smaller, tight mouth. “So big, GGRRRFFF,” Jon groaned as he squeezed Austin’s comparatively small torso with his 38” thighs, pressing his 500lb weight down onto his stepson as he started thrusting and humping harder. Jon looked down, his helpless master greedily slurping up his cock, eager for his bull pup’s thick cream, and pictured himself rising taller, bigger, wider, thicker, his muscles expanding harder and huger until he couldn’t even fit into this room and he felt his balls twitch and tighten. “YEAH, TAKE YOUR DADDY’S LOAD, Sir, UHHHHFFFRRRAAHHHH,” Jon roared as he exploded, the biggest load he had ever shot. Austin eagerly gulped up all of his stepdad’s potent, thick seed. When he was finished, he leaned back, cum and saliva dripping off of his cock. Austin coughed and sputtered, then reached up and rubbed the massive furry gut and muscular chest looming above him. Jon shifted his weight off his master and then moved around until he was spooning Austin, the mattress groaning as the 500 pound man shifted his weight. “Mmm, amazing,” Jon sighed. He reached a big arm around Austin, who pressed perfectly against his beefy side, tucked against his sweaty pit. Austin’s head rested on Jon’s enormous right pec. He could feel Jon’s warm breath and hear his heartbeat, still elevated. “My big bull, such a good pup,” Austin cooed as he rubbed Jon’s furry chest, lingering over the heavy metal lock and chain that lay against Jon’s chest. “And now we have all Christmas Break to spend time together,” he said. “That’s right,” Jon said. His enormous cock twitched and lurched, ooze smearing across his big thighs. “We can do all kinds of stuff together.” “Uh huh. Are you gonna be a good bull and lift with me?” Austin said, whispering in his stepdad’s ear. “Yeah,” Jon said in a ragged whisper. His cock twitched, already bulging longer even though he had just cum. “And cook for me and eat as much as you can?” Austin said. “Oh yeah,” Jon growled. His balls tightened. “And take care of all your master’s needs?” Jon’s cock bulged fully hard, all the way up to his deep belly button. He leaned down and kissed his little master on the forehead. “Of course, Sir,” Jon said obediently. “Good pup,” Austin said, who reached over and started stroking Jon’s thick cock. “Good.”
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