growth Maximus Protein Part 4: You Get What You Pay For

[gulpable]

Here's Part 4 of the Maximus Protein Series. This is (seriously) the last chapter. Thanks for reading!

 

Travis was on the floor, breathing heavy, covered in cum and sweat and drool, having just swallowed what must have been gallons of Dan's cum.

I looked over at the tub of Maximus Protein lying empty on the kitchen floor. 

"Travis.... did you... drink..."

"All of it" Travis said with an exhausted smile on his face. "I drank the protein, and I drank the special ingredient." He gestured toward sperm-donator Dan, who appeared to have fallen asleep right on the table in a post-orgasm bliss. His eyelids fluttered as he snored softly, the huge bulk of his body rising and falling rhythmically with his breath. This was no time to be napping, but Dan looks so adorably innocent there, with his mouth slightly open, I figured it was better to let the behemoth sleep for now. 

"Ooohhh" Travis groaned from the floor as the rumbling in his stomach grew louder. "I think I drank too much, Scott. I don't feel so good."

"I'll say. What the fuck is wrong with you Travis?" I remembered how angry I was that I hadn't gotten to drink any of Dan's cum explosion. I had barely stopped growing, but I was eager to feel myself swell again. If I couldn't drink Dan's, then maybe I could drink from Travis, who, if dosages had anything to do with amount of growth, was about to explode. I watched him carefully as he held his distended stomach and writhed around on the floor. He didn't look like he was growing, he look like he was about to puke. What a waste.

I picked his body up carefully, which now felt so small in my giant arms, like picking up a dog, and laid him on the couch while he groaned and shook. he looked pale. "I think you might have just overdosed yourself buddy." Just sweat it out and see what happens. I watched him for a minute for any signs of growth, but nothing happened, just more groaning and intermittent stomach grumbling. 

"So much for getting your money's worth" I said as I turned away and walked to the mirror over the fireplace. I had felt myself change but I hadn't gotten a good look at myself yet. What I saw was astounding. I had gone from being a slightly fit twink to being a legitimate red haired muscle god. Pushing back my copper colored hair, I admired my strong masculine brow, my roman nose, which had always looked slightly awkward on my face, was now perfectly fitting with the rest of my features. I had evolved into a higher form of man. My Jaw was perfectly squared and evenly covered with a thick beard that complimented it perfectly. Even my lips seemed more masculine and commanding. I couldn't wait to his the bars and see how people reacted to my new looks. I looked kind of ferocious, like a wolf-man. I wondered if I would actually scare guys off. I did an experimental double bicep flex and was shocked at the mountains that rose into view on each of my arms. I brought my arms down into a crab pose, barely even flexing, and still muscle bulged from every angle. I looked like I could kill a man with one punch. I was turning myself on, big time. My sixteen inch cock was rising to attention anew, begging to finally release the load that had been churning in my balls since I transformed, and it would only take a minute to pump it out right here. Why not? I grabbed my tool with both of my huge hands, almost hurting myself with my newly stronger grip, and began pumping away, instantly moaning to myself as I felt what new pleasures my new XL body could bring. 

I had my eyes shut in ecstasy as I was on the edge of release. I flexed my abs and glutes, arching myback as I neared the point of no return, grunting and growling wildly. Just as I was on the edge, I felt two more hands, much smaller than mine, grip onto my cockhead as a tongue licked up my glans. "OH FUCK!" I jolted with shock and pleasure and snapped open my eyes just in time to see little Travis, having snuck off the couch, clamping his mouth down on my cockhead. "TRAVIS NO-AAAAAGGGHHH!!" I shouted but I was past the point of no return. I unloaded a boiling hot jet of cum straight down my roommate's throat. Then another, and another, and another, causing him to sputter and choke, tears streaming out of his eyes, but still he held on, jamming almost my whole cockhead in his mouth. Minutes passed as my head swam with pleasure and fear. I could barely think straight I was in so much orgasmic pleasure, but I knew I was unloading a record amount of spunk into my already full roommate. If he hadn't been ill before, this could be truly dangerous. 

"TRAVIS WHAT HAVE YOU DONE?" I shouted as my head cleared form my orgasm. Travis just gasped and wiped his mouth with the back of his wrist.

"Thanks *gulp* broaahhh" He patted his stomach, now sticking out like a pot belly under his wifebeater shirt. "That was *burp* just the ticket."

"TRAVIS YOU ALREADY OVERDOSED FROM DAN, THIS MUCH MIGHT KILL YOU."

"Nah" he said with a cocky shake of his head. "I actually didn't get enough! You gotta *urrp* read the uh, fine print *burp-ahhh*. When you drink a glass of the protein *ooouhhh* you gotta drink a *buh* proportionate amount of cum to *ahh* activate it!"

I shook my head in disbelief.

Travis took a seat on the floor as he continued to burp and massage his grumbling stomach. He was sweating like a pig and looking quite a bit like one too.

"Dan wasn't too much *ulp* cum, man, he wasn't *burp* ENOUGH! So thanks for the help! Now I can *urrrrrrrp* really get going"

I was in shock. I was mouthing "what the fuck" to myself just as I saw Travis suddenly sit bolt upright with a look of surprise on his face. 

He burped loudly and his whole body kind of jumped.

"What was that?!" he said aloud, to no one in particular, as his body spasmed and jumped again. He might have not noticed it yet but there seemed to be a little more of Travis every time his body spasmed. There was a little more muscle in the slender legs that were sticking out of his boxers, and his tank top looked a little more closely fit on him.

*burp* Travis burped and involuntarily jerked his limbs. There was definitely some growth starting. There was even a little more bulge in the front of his boxers. 

"Am I *urp* growing yet, Scott? Can you *urp* tell? Ah!" Travis looked down as his latest spasm made his dick jerk against the front of his boxers, there was a respectable tent showing down there now. "Can you find my glasses?" he asked as he looked down at his arms. "I can't tell if anything's *UNHH* happening *AHH* yet"

I was speechless. The guy had just taken an elephant dose of muscle growing protein powder and downed what must be enough cum for a hundred men, and here he was still acting like the nerd who loses his glasses.

"I think you'll know soon enough" I said, watching as his feet inched a little further across the floor with every grunt and spasm.

RRRRIIIIIIIIPPPPPP Travis threw his head back and moaned loudly as another spurt of growth caused his dick to tear out of the front of his boxers. It had to be about a foot long already, and Travis still hadn't grown that much yet. 

"UHMMM FUCK!" Travis exclaimed in a throaty (deeper already?) voice as he gave his cock a stroke. This seemed to accelerate the growth a bit, and his next two spasms took Travis from looking bigger to actually filling his boxers tightly. His white wifebeater shirt was now pulling down at the chest as his pecs bounced bigger with his stroking. the outlines of a six pack were showing through his soaked shirt. The arm he was using to prop himself up on the ground was now veiny and pulsing bigger and bigger as his triceps started to ripen over his elbow.

"UMF! Scott I don't think I *URP* need my *UHN* glasses anymooOOOH!" Travis shook as he was hit by a big growth spurt that seemed to put a whole foot and 50 lbs of muscle on his frame in a second. His boxers were now tightly wrapped around bulky, muscular legs that were quivering and shaking with his stroking. The seams were tearing along the edges to reveal more sweaty hairy muscle bulging out. His wifebeater was hanging on by threads as his chest seemed ready to pop the shoulder straps at any minute. 

"YUP! I CAN SEE I'M DEFINITELY GROWING NO-O-O-OWWWHHHHHHFUUUUCK!" He bellowed as a new spurt hit his body and he simultaneously burst right out of his boxers while his whole upper body flexed the wifebeater into threads. Travis was now BIG, looking like a heavyweight professional bodybuilder, but off-season, cause he was sprinkled in brown hair and had a nice amount of body fat accentuating his muscles. He flexed his huge size 15 feet,  and pounded a massive fist on the floor as another spasm took him just a bit bigger. 

Most noticeable of all was his giant dick, standing up at 16 inches, and complimented by two of the biggest, juiciest balls I had ever seen, spilling onto the floor between his legs and pulsing, actually pulsing as they generated more and more testosterone for their owner. 

"Scott *UNH* get a *AAHHH* load of this growth bro!" He was furiously pumping and groaning and he pulsed and flexed slightly bigger again. Now he was starting to worry me. He had to be close to six and a half, seven feet tall now, and inching bigger every minute. Already his dick was starting to rival mine, and there was no way he would be done soon. 

If I had any hope of not being the absolute smallest guy in the room, I had only one option: to drink Travis' cum. After all, he had taken mine already, right? He owed it to me. 

"Need a hand, stud?" I asked as I crouched down and palmed his softball size testicles with my hands. Another *UMF* from Travis and they grew even bigger in my hands, grapefruit size now. "I take that as a yes" I said as I started stroking his shaft with both hands. "AHhhhh Thanks bro!"Travis moaned even louder as he took his hand (which was bigger than mine already) off of his shaft and immediately started squeezing his meaty pecs, pinching each big brown nipple and causing little mini-growth spurts. Was he able to control his growth?

I knelt down and started sucking Travis' rod with all the gusto I had. "Who-AAHAH!" Travis howled as he spasmed again and I felt his dick expand another inch into my already stuffed mouth. I used my hands to massage his giant testicles, squeezing them in my powerful grip, aching to get a taste of his man juice. Pre cum was oozing constantly out of his dick, making everything incredibly slick. I found some rhythm, pumping my head and trying not to choke on his pulsing dick as his grunts got louder and longer. Finally, I felt a vibration in his balls as they tightened in his scrotum, his cock flexed and grew even bigger in my mouth, causing me to almost panic but I held on. I needed to get his cum down my throat no matter what. His dick was boiling hot to the touch, I could feel the burst of cum about to travel up his shaft.

Suddenly, I felt a giant hand grab the back of my hair and yank me off of Travis' dick. I was too shocked to fight it. I had forgotten about Dan! "What the-!!" 

But it wasn't Dan that had grabbed me away at the moment that Travis was about to shoot. It was Travis himself! The gargantuan man had thrown me off of his own dick and was now jerking himself off furiously and aiming for his own mouth!. "Travis NO!" I shouted but I was too late. With a frantic growl Travis shot like a firehose, hitting his own mouth directly, gurgling and sputtering but drinking it too, just like he had with Dan. "FUck!" Another thick rope of jism erupted from his dick, the majority of his going straight into his huge throat, the rest of his splashing over his stubbly square jaw and trickling down his neck onto his heaving pecs. Rope after rope shot out, Travis grunting and burping, but drinking more, then leaning forward and clamping his lips straight onto his own cockhead, sucking out every drop. I could only watch in disgusted shock. This growing giant had already taken Dan's load, then mine, and now he was guzzling his own? What was even going to happen to him?

Dan fell back, orgasm subsiding, and belched loudly as his head popped up slightly higher. He had a smile of total satisfaction on his scruffy face. I was furious. 

Travis how could you do that to me?!? I exclaimed, not knowing whether to deck him or start pumping my own cock, which was, of course, hard again. I couldn't help feeling a bit turned on by Travis' sudden transformation into an insatiable cum guzzling muscle pig. 

"I'm *burp* sorry bud! I know you *ulp* wanted some, but I just get soooooooooo *URRRRP* THIRSTY!"

"What the fuck is happening to you" I said, more of a statement than a question. I was pretty turned on by what I was seeing, and my cock was standing ramrod straight. 

Dan suddenly jumped up from the floor and I was shocked to discover that he was almost eye level with me now. He was almost as tall, but a lot wider, looking like a bodybuilder in off season.

"What are you gonna do about it? He said cockily, showing his slightly protruding muscle gut into me a bit. I was more turned on that ever. No way this could be the same Travis I had been living with the past year. Guys get a bit of muscle and their whole personality changes, but this Travis was unrecognizable. He almost seemed to growl as he stared up at me, teeth clenched. 

I decided to call his bluff and spat directly in his face. "What are YOU gonna do about it, runt?" I said, privately shocked at my own new cocky attitude. 

Travis growled like a lion and wiped my spit off his face. The look of anger on his ultra-masculine face made me doubt my tactics. There was a new, almost feral look in his eye, one that hinted at certain shades of violence and lust. 

"I'll show you" he said calmly, and sucker punched me straight in the gut, catching me off-guard and causing me to double over in pain. Travis took his opportunity and grabbed me as I was doubled over and  quickly position himself behind me pressing himself into me and holding he down with one strong hand on my back. I almost fell, but his strong grip held me up. Suddenly I felt his other hand, wet with precum, roughly lube up between my legs. I was scared, but I wasn't going to stop him, not when I was this close to getting his next load.

Despite my newly giant, size, Travis cock still felt absolutely massive entering my hole. I gasped loudly as he rammed it in, yelling out in pain before feeling a huge shiver of pleasure wash over me. The shock of Travis doing this to me was mixed with the thrill of excitement. I couldn't believe this was happening. As Travis began to pump his still-expanding dick inside of me, I looked down at my own massive hands holding me up, the tensed, thick bulging arms that I never thought I'd see connected to my own shoulders. But these weren't my shoulders either, these were true cannonball delts now, the kind only seen on advanced bodybuilders that abused steroids. Was I on steroids? Is that was was int he Maximus Protein that had caused the truly freaky transformations of Dan, me, and Travis this afternoon? I stared at my huge hard cock slapping rhythmically against my washboard eight pack abs, I could feel my hefty balls swaying pendulously between my legs. 

Travis slammed into me, still grunting and occasionally shuddering as spasms of growth hit him at irregular intervals. I could feel his cock lurching bigger inside of me with every shake of his mammoth body. Soon I noticed it was actually darker in the room. Was the sun going down? I felt Travis's weight shift behind me as I saw his hands come down in front of me. Next to my giant hands, these looked absolutely monstrous. I was afraid to turn my neck and look to see how big Travis was now, but I when I did turn my head all I saw was the side of one of his heavy pecs, bigger than my head, with his underarm close to my shoulder I saw the bushy hair protruding from his armpit. Just the smell from his armpit was intoxicating and sent shivers up my spine as I inhaled deeply. It was the most pungent, most manly musk I had ever smelled. One inhale and I felt high on pure pheromones. 

Travis was on all fours, above me, his whole body eclipsing mine as he continued to pump his dick into mine. I could feel his muscle gut developing, sliding on my back with his thrusts at first, then starting to actually rest on my back as he grew bigger and his grunts grew louder. 

"TRAVIS YOU"RE GETTING TOO BIG" I yelled, but he only responded by grunting as he pumped into me more and more. His cock in my ass was starting to become painful as is tensed with a new pop of growth, Travis shook all over, Grunts lowering by another octave. I tried to squirm away from him but his arms had my huge body locked in on either side. His heavy muscle gut was pressing on my back and making it difficult for me to move, it was slowly pinning me flat on the floor. "TRAVIS STOP YOU'RE CRUSHING ME!" I yelled as loud as I could. I was about to get suffocated while being fucked to death by my giant roommate. "TRAVIS NO! YOU'RE TOO BIG!"

Travis roared deeply in response. But then, he actually stopped pumping. I felt some of the weight of his gut lift off of me as he repositioned himself back onto his knees, and pulling out of my ass with a loud wet slick sound. 

"ARE YOU HURT?" his voice now sounded like it was being amplified through a stadium speaker. He was practically whispering but it sounded like a fog horn with a bass booster on it. 

I was relieved, and surprised. The hulk still had a little Banner in him. "I'm okay" I said, on my hands and knees, breathing heavily. "You just...scared me....." Even thought I now possessed the strength of a dozen men and a body that could fight a moose, I felt like a small boy under him. 

"I'M SORRY" Travis said. It was funny to hear a genuine tenderness in such an intimidating voice. "CAN WE...... UH.... CONTINUE?" All my anger melted away with this oddly touching, nervous question. I always wondered what Travis was like in bed, and now I was getting the XXXXXXXXL version of the surprisingly caring lover that I had supposed him to be. 

"Yeah" I said, and I finally actually turned to face him, and almost fell back down again. Travis reached his giant arms toward me, now bigger than my own legs, and said in a soft yet commanding baritone "C'MERE BOY." He was absolutely massive. As tall as I was standing up, his head was still a foot higher than me while he was on his knees. And he was WIDE. As I allowed him to pick me up and bring me close he took up almost my whole field of vision. He looked like a fucking viking, with shaggy hair, and a bushy beard that had sprouted up while he was growing. It made him look fierce and warrior like. His traps rose out of his shoulders almost to his ears, his neck was thicker than his head. And his shoulders were beyond being boulders, I was looking at whole mountain range. As he pulled me closer to him the striations rippled through his pecs, now covered in a pelt of deep brown hair, resting on top of a muscular gut. He was a mountain of a man in full-on bear mode. And right under his stomach, between his two titanic furry thighs, resting on top of the biggest balls I had ever seen, was his still hard cock rising up to me. It was dripping precum in a constant flow in anticipation of going into my ass again. I was ready and willing to let this giant put his seed in me. And when he did, I would become a giant too. 

"READY to CONTINUE?" He boomed. I nodded and jumped onto his dick, feeling it push into me with little resistance and howling with pleasure. Travis made me hold onto his traps as he bucked into me. Effortlessly slamming his multi-foot cock into me and holding almost all of my 500 pounds easily in his arms. 

"Come on, Travis! I want your giant cum!" I yelled, as I held on for dear life as he bucked away. I dug in and squeezed his traps with my powerful hands, then clenched as he increased his pace. He was getting close. Then I heard a loud hiccup from Travis and looked up to see a surprised look on his face. "OOPS *HIC* I THOUGHT I WAS *HIC*.... DOE GRO*HIC*WING..... BUT I GUESS NOT!" Every hiccup made his mountainous shoulders spring up just a little higher, as his whole body shuddered. His pecs flexed and bulged out more...and more.... and more with each hiccup. And most importantly his dick, already on the edge of what I could handle, pushed into me more and more. Travis shut his eyes and squeezed me right up against his huge warm body as the feelings shook through him. 

"OH!......FFFFFFFFFF.............FFFF........FFFFFFFFFFUUUUUUUCCCCKKKK" The shuddering gave way to a massive full body orgasm as Travis bellowed out and unleashed a fire hose of cum into me, instantly overfilling my insides and spilling out onto his balls. Travis could only moan loudly as the orgasm tore through his body and caused multiple aftershocks. I was pulling off of his cock, which only made more room for the cum he dumping into me. If this stuff had any kind of potency, I'd be leaving the world of normal humans behind in no time. 

"AAAAWWWWWWW" Travis fell back against the wall, crushing wha was left of the sofa to splinters. "Hey man, I'm not finished!" I yelled, pumping my rod at him. Travis pulled me forward and held me up to rub my dick between his pecs, which were deep enough to feel like a whole new orifice. "Ah fuck!" I was quickly getting close as he tensed and bounced his pecs against my cock. He playfully opened his mouth as my cock grew toward it, sticking his huge tongue out to playfully flick at the head. "Oh FUCK Trav!" I squirted a couple spurts of precum onto his face, coating his beard in sticky fluid. He lapped it up like a bear licking honey. Just as he was about to clamp his mouth onto my nearly-bursting cock, I stopped him. I held his huge square jaw closed with my hand, then waved a finger in his face. "Nah-uh. None for you this time, greedy bastard." Travis groaned loudly as he let go of me and I slid down his body.

"Don't worry big guy, there's plenty to go around" I said as I walked toward the dining room table where Dan was still somehow passed out on the table. "But I owe Dan here a little help."

I gently tapped (okay kind of slapped) his handsome dopey face and he jolted awake, looking dazed and adorably confused. "Holy SHIT!" He said when he saw the looming form of Travis taking up the whole living room. "Whaaat the ffuck did I miss?" He said confusedly, starting to rise up from the table and rub his head. 

"No time to explain buddy! I've got something that needs attending to!" I said as I pointed to my fully erect dick, which was ready to blow at any minute. 

"Yes SIR" Said Dan, huge grin on his face as he wasted no time in pulling himself to the side of the table and opening his mouth wide. I slid my cock in and before I could even get two pumps the sheer sucking force of his mouth and the pressure of his huge tongue against the glans caused me to go off like a rocket. I curled my toes and rocked back in forth in bliss as I pumped gallons of cum into his mouth. He finally coughed and pulled away, cum spilling out of his mouth and onto the floor. 

"Oh fuck! I'm still going!" I yelled, surprised to see new jets of cum still pumping out. I reached into the kitchen and grabbed the first thing that came to hand- the empty blender that Dan had used to make the initial batch of Maximus Protein, kicking off this whole situation. I had the big blender pitcher about halfway full when my cum flood subsided and I could think straight again. What was I going to do with the leftover cum? Surely I could drink some. I had just taken the biggest load of all time from Travis, and my very full abdomen was already starting o cramp and hint at the growth surge to come. I tingled with excitement thinking about what that cum was going to do to my physique. I lifted the pitcher to my lips to take a sip. I was a growing boy, after all. 

Then I heard a loud knock on the door that made me jump. Who the fuck could that be? Surely some neighbors had heard us. I grabbed a blanket and sloppily wrapped it around my waist, which didn't do much to cover much of anything, but I had to look at least somewhat presentable. I was about to give whoever was outside the shock of their life, probably. 

I opened the door not to see a stranger, but to see three of Travis and Dan's close buddies. There was Steve, a somewhat shorter guy who was slightly balding already, but the guys called him Chimp because of his apeman appearance. Then there was Swole Nick, who up until this afternoon had been the biggest and strongest of the group, the guy who always pulled all the women and had the respect of all men due to his imposing stature, chiseled good looks, and steely, confident demeanor. Finally there was Stick Nick, who was called that because where Swole Nick was thick with muscle, Stick Nick was thin and wiry, the polar opposite of his bigger friend. I towered over all three of them as they looked up at me awestruck. 

"Holy fuck." Swole Nick finally spoke. "The shit really works. Dan told us to get here as soon as we were done at the gym but I didn't expect..... I didn't....."

I couldn't help but puff out my chest a little bit and enjoy the feeling of being stared at by men who had hardly even glanced at me before. 

"Yeah, I guess it works" I said cockily, flexing a mighty bicep and hearing Steve yelp a little bit in surprise. 

"Well it's a good thing Dan told me to bring the tub that I bought" Stick Nick said, and I saw that he was holding at his side a very familiar sight. "Pretty much blew the bank buying this shit, so let's hope it uh, pays off." He turned the tub of MAXIMUS PROTEIN that he was holding and held it up in front of him. "Got anything to mix this with?" He said.

I looked down at the pitcher half-full of cum that was still in my hand. 

"I've got just the thing for that."

 

 

 

 

 

[actorsarecool]

Excellent work! So hot and wonderful descriptions! I know it’s the end - but if you ever had more to add to this saga, I and many others would probably love to see where it goes!  Thanks for a great story!