growth without effort Natural Nathan, part 3 - Natty No More

[Ultrabeef]

Natural Nathan, part 3 - Natty No More

By Ultrabeef 

Zack Vasco, former junior bodybuilding champ, had been the straightest guy he knew, dating and fucking his fitness model ex-girlfriend for years, but the transformation he had recently undergone from cute Latino bodybuilder into massive hairy gear-head, had also done something to his sexual preferences.  His once big cock has shrunk during the transformation leaving him a hungry bottom and the sight of German physique pro Lukas Daren was all he needed to get him going.  The feeling of Lukas’ big German uncut cock pounding his newly massive over muscled glutes was more than Zack could take.  The two men went at it for hours as Lukas explored Zack’s freakishly bloated body.

 

The next day when Zack awoke to daylight streaming through his blinds, Lukas was gone.  Zack’s head felt fuzzy, had it all been a crazy dream?  Zack’s sheets were soaked with cum and sweat but there was nothing to confirm that Lukas had actually been at his apartment for a night of passion.  Zack lumbered to the bathroom and awkwardly maneuvered his beefy body into the shower.  After cleaning himself up the best he could Zack squeezed into some gym clothes and headed to the gym.  It was time to see what this big new body could do, and show that asshole Nate Lindy that there was a new big man in town.

 

Zack entered the gym and smirked a cocky grin as he watched guys’ mouths drop open and heard the whispers “Holy shit!  Is that Zack Vasco?  He blew the fuck up!” “No shit!  He as big as Nate Lindy” “No way dude!  He’s fucking bigger!”  Zack could feel his micro dick get hard and start to leak precum in his tiny, skin tight lycra shorts as he waddled his way to the locker room, his huge bulbous ass bouncing as we walked.  Zack’s stringer tank too did little to hide his massive upper body, wide as a barn door shoulders, freaky lats and thick veiny arms.  Zack’s big chest was covered in sexy dark hair and his wide jaw was covered in dark sexy, scruffy, stubble.  Zack was loving his new look and felt so big and powerful.  He loved how much more space he took up, he felt so masculine and sexual. 

 

As Zack turned sideways to get his wide shoulders through the locker room doorway he came face to face with Nate Lindy.  Well, more like muscle gut to muscle gut as the two behemoths distended turtle bellies bumped into each other.  “What the fu...” Nate trailed off, surprised to be confronted with a rival in the size department.  “Sup bro...” Zack growled in his newly deep bass.  “Fuck! Zack Vasco?  Is that you? Oh shit!” Nate gasped in his equally deep voice his eyes bulging.  “Yeah “small fry” you like?” Zack raised his arms into a freaky double bicep pose before shoving Nate backwards into the locker room.   

 

Zack could see a tiny bulge in Nate’s grey shorts and the beginnings of a wet spot forming.  “Oh fuck!  You’re so...big!  So...hot!” Nate moaned. Zack loved that he was turning on his former Youtube critic but he also felt himself strangely attracted to the equally massive freak.  “I wanted to see what it was like to be a big fuckin beast” Zack growled, “You can’t be the only freak in town”.  Zack leaned in and brought Nate’s face toward him before giving him a long kiss.  The two hulks started kissing and soon their sweaty bodies were slammed up against the lockers, leaving deep dents in the thin metal, as they passionately made out.  Each man had never felt such power and hard, veiny muscle in their hands.  As their swollen pecs and distended abs rubbed against each other they each shot their tiny load.  “Fuck...that was so hot” Zack purred, rubbing his big paw through Nate’s thinning hair.  “Shit, bro!  That was amazing” Nate whimpered.  “So much muscle.  So much power” Zack breathlessly groaned.  As the two hulks continued to grope each other and gasp for breath, Nate grunted “must...have...more”.  “Fuck...yeah...need more” Zack groaned as he came again.  

 

As the stinking, sweaty freaks tried to clean their massive bodies up, they hatched a plan.  Lukas had gotten the formula that had given them all this muscle.  He had to be able to get more.  And both Nate and Zack wanted more.  They needed more. Zack and Nate squeezed into Nate’s van (Zack’s Mustang was far to small for them both) and they drove to Lukas’ apartment.  “Let me go in first bro” Zack ordered Nate.  Zack waddled up to the door of Lukas’ apartment and knocked loudly.  Lukas opened the door and grinned at the massive hairy Latino stud staring back at him. “Back or more big boy?” Lukas cooed in his German accent.  “Actually, we both are” a deep voice came from behind Zack.  Zack moved aside to reveal the equally huge Nate.  Lukas looked at them both confused. “I...I don’t underst...” Zack cut him off and powerfully shoved Lukas inside as Nate followed, shutting and locking the door behind them.

 

“What...what do you guys want?” Lukas asked nervously.  He was wearing white compression tights that showed off his huge bulge and a deep cut baggy grey t shirt that perfectly framed the cleavage of his pecs.  His blond spiked hair, deep tan, and brilliant blue eyes made him look like a over muscular angel.  “We want to be even bigger” Nate growled as he came up behind Zack and wrapped his thick veiny arms around him.  “Yeah, we like all this fucking muscle” Zack purred, turning and biting his lower lip before kissing Nate.  “What...what the fuck?” Lukas gasped in horror.  “How...how do you...?” “We just got reacquainted at the gym” Nate grinned “and we both realized how hot it is to have this much muscle”.  Nate flexed his massive arm as Zack started kissing the sweaty beef.

 

“I...um...only have one dose of formula left and, I...think...” Lukas stammered, not confident for the first time ever.  “Where is it?” Zack demanded dangerously.  “Give it to us!” Nate growled, “now!” Lukas ran for the door but Nate stood in front of him like a wall.  As Lukas turned around Zack came toward him dumbly grabbing at him.  Lukas had his smaller size and speed on his side.  The two massive freaks couldn’t move very well or very quickly.  He knew that there was no way out of the apartment, there was only one door and there was no way he could get past both Nate and Zack. He just hoped they didn’t find the one remaining dose of formula in his bedroom, he had no idea what kind of fight would break out between the two beasts if they decided to fight each other for the formula.  Lukas had barricaded himself in the locked bathroom and was desperately trying to open the bathroom window as Zack and Nate attacked the door.  Lukas was halfway out of the window when splintering wood hit him and he felt Zack’s big hand grab him by the waist and jerk him out of the window. Zack carried him to the bedroom and threw Lukas roughly onto the bed.

 

“Well, look what I found!” Nate laughed manically as he held up a small syringe that lay on Lukas’s dresser.   “No! Put that down!” Lukas pleaded, the fear evident in his voice as Nate uncapped the syringe. “That shit’s mine bro!” Zack thundered as he tackled Nate knocking the syringe into the air.  It felt as if time was moving in slow motion, the two hulking gear heads watched as the syringe tumbled toward the bed.

 

The syringe flew through the air and landed on Lukas.  Nate dove onto him, his heavy body pushing the syringe into the perfectly toned German hunk. Lukas could feel the syringe penetrate his stomach.  A feeling of warmth crossed over his body.  “Oh fuck!” Lukas moaned, “what did you dumb over-muscled fucks just do?” Lukas pulled the empty syringe out of his perfect 6 pack abs and tossed it away as he clutched his stomach.  “Shit!  It hurts...ughhh...so bad”. Lukas’s skin was glistening with sweat and wet spots were visible from the armpits of his grey shirt.  Zack and Nate watched stunned as the former ripped German bodybuilder began to swell.  Within seconds Lukas’ neck had thickened causing his voice to drop an octave.  His guttural grunts filled the apartment as his shoulders and traps swelled larger and wider.  Lukas could feel his sweaty pecs straining against his soaked shirt and then he heard the sound of tearing fabric as his swollen pecs burst forth into freedom.  “Ughhh...fuck!” Lukas moaned as his reached up with his larger hand to feel his hard, thick chest. Purple stretch marks snaked from his armpits across his pecs.  His nipples were puffing out into super sensitive bitch tits as acne started to spread across his once flawless skin.  Lukas felt something warm and wet on his nipple causing him to moan in pleasure.  It was Zack’s tongue rolling around his erotic nipples.  Lukas could feel his cute bubble butt lifting him up off the bed as it swelled into a big muscle ass.  Then he heard and felt his workout tights shred as his thickening quads burst free and struggled for room against each other.  Lukas felt Nate rub his face against against his sweaty pubes before taking Lukas’s cock into his mouth.  Lukas moaned louder as Nate sucked his rapidly shrinking dick.  Lukas could feel himself cum in Nate’s mouth as his perfect 6 pack swelled into a thick muscle belly.  “Oh fuck! Fuck!” Lukas moaned as the transformation slowed.  Nate and Zack helped him up from the bed and led him to a mirror on the wall.  “Oh fuck! What did you do to me?” Lukas groaned taking in his newly massive body.  The formerly ripped bodybuilder bore little resemblance to his former self. Lukas’ muscles were swollen to the point of bursting out of his skin, thick veins snaking across his body.  Lukas ran his larger hand through his terribly thinning blond hair marveling at how big his bicep and arm were.  His once perfect chiseled face was bloated and covered in acne.  The most glaring change was his once trim waist that now hung off his body as a big turtle shell like muscle gut.  Lukas rubbed his big distended belly and decided that he liked how big and full he felt.  He had never felt so masculine and large in his life.  Lukas could barely see his now tiny cock, having shriveled as a side effect of the serum. “Looking hot as hell bro!” Nate slapped Lukas on his huge butt.  “Fuck yeah! Big sexy German tank!” Zack grinned flicking Lukas’s nipple with his finger.  Lukas could feel his tiny dick start to leak precum as the two roided studs kissed his huge body.  Lukas grinned as he flexed and started to comprehend the beast he had become “Fuck yeah, don’t stop dudes.  Definitely no more natty for me”.

[Roidaddict]

MORE please!!!

[TonnyGiant]

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[gman34]

Damn. More.