Subject #3

by MuscleNexus   

A brief scene involving a young man named Cody transforming into the subject of a muscle growth experiment.

“Drip.”

“Drip.”

“Drip.”

Cody grimaced as a he felt a cool liquid running down his face. He groaned. He felt like he was waking up with the worst hangover of his young life.

“Urgh.” He propped himself up, rubbed his eyes, and took in his surroundings. “What the fuck.” He wasn’t in his warm bed nor was he in his little studio apartment.

“Drip.”

Cody looked up to see the steady rain of water droplets escaping from a crack in the ceiling. It looked like he was in some sort of warehouse, or abandoned mall. And it was flooded. Everything had a fresh layer of moisture on it and the air was cool with the feeling and scent of fresh rain. He peeled his shirt off his skinny frame, it was soaked through. The rest of his clothes were too.

He noticed the gloves on his hands and suddenly remembered what he was doing. He had been biking to work, but decided at the last minute to take a slightly different route. A route that forced him to past the long-abandoned shopping mall.

Cody slid to his feet. He needed to find a way out. He spun side to side, looking for any hope of an exit. Finding none he walked to the railing and looked into the lower level of the abandoned mall. The entire first floor was flooded almost all the way to the second. Perhaps there was an emergency exit down there he could try…

Cody took a deep breath, ready to dive in, when a tinny electronic voice crackled through the empty halls of the mall.

“Subject number three. Observation beginning at 10:33 a.m. Investigational product nineteen administered at 10:05. Primary therapeutic effect expected in two minutes. Standby.”

“What?” Cody croaked, instinctively rubbing a sore spot on his delt where there was a small drop of blood and pinprick. “Hey! Heeeeey! Hello!” Cody called. “I’m not some kind of science experiment! What’s going on.”

Cody nodded with satisfaction as the loudspeaker crackled into life again, at least he would get some answers.

“Subject three, you are an experiment. Investigational product initiation expected in twenty-five seconds.”

Cody swallowed hard. His throat felt swollen and tender, he placed a hand up to it and felt the barely perceptible thickening of the muscles and cords that ran it’s length. He groaned deeply as his whole body suddenly felt hot and heavy.

“What.. Is… This…?” Every word sounded slightly deeper than the last.

Somewhere in the back of his mind Cody began to feel pleasure mixing with his fear. He glanced at his expanding forearm as thick veins bulged across it and cried out a little. “No, no, no!” It was suddenly clear what was happening. “I don’t want this! I don’t want to be big!” He called out in desperation to nobody in the empty mall. His groans increased in desperation and pleasure as the man that was Cody became Subject #3.

At the bottom of his vision he saw his chest heavy with every breath, growing into thick slabs of muscle that hardened and jumped with even the tiniest movements of his arm. Below each sagging pec his belly swelled with muscle. He rubbed the fine hairs that dusted his turtle-shell like abs, not expecting to feel the jolt of pleasure that giving himself muscle belly rubs brought.

His attention was suddenly brought to his lower half as he heard the fabric in his lycra biking shorts straining and ripping. Loose only moments ago they showed serious signs of strain against his rapidly swelling thighs, ass, and package. Cody groaned and grabbed the latter of these through the tight fabric. He lost himself for a moment, feeling the thickening meat in his shorts, but then regained clarity when an audible moan escaped his lips.

“No. Not… Me.” He managed to growl before yanking his hand back. He staggered back a little, noticing the heavy thuds that his overgrown calves and feet made against the floor. He groaned again involuntarily as he realized how massive he had become and was becoming. Cody would’ve hated the overgrown mass monster standing in the abandoned mall, but subject #3 had different opinions.

With a small gasp of defeat Cody looked himself over. He knew he would never be able to return to his life as the clean cut professional that had been biking to work only half an hour ago.

“I freak,” he managed to croak.

Subject #3 let his hand return to the throbbing meat in his shorts and never thought of Cody again.

For a version of this story with a 3D illustration please take a look at my Patreon: https://www.patreon.com/MuscleNexus

Vote on this story

The right blend by BRK In this sequel to “One Hot Summer,” Thad returns to Colorado, still in Zac’s upgraded, hyper-hung body. When he finds he’s no longer able to morph himself back into what he’s supposed to look like, his only hope is his sexy and capable second-in-command, Aleksei. 31 parts 92k words (#33) Added Mar 2023 Updated 28 Sep 2024 43k views 5.0 stars (10 votes) No comments yet •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Multi-balls•Multicock•Multihead•Boytaur•Four Legs•Multiarm•Multileg•Multilimb•Multipec•Multitongue•Multitorso•Replication•Stacking•Muscle Growth•Muscle/Strength•Always Shirtless•Pointy Ears•Increased Libido•Getting Handsomer•Transformation•Getting Taller•Plausible Size Difference•Size Decrease•Size Increase•Race/Ethnicity Change•Hair Growth/Getting Hairy•Retcon•Incest•Brothers•Nonconsensual change•Body Swap•Cannabis •M/M•M/M/M•M/M/M/...

Four for the game by Clearlyhere Four jocks play a body changing game. 2,962 words Added Feb 2017 27k views 4.5 stars (20 votes) No comments yet •Cock Growth•Cock Shrinking•Huge Cock•Muscle Growth•Muscle/Strength•Getting Handsomer•Size Increase•Incest•Brothers•Body Swap

Wishes come true by OneLuckyGuy89 As Zhao continues his godly trip down memory lane, we learn about his mysterious companion Brutus, whom Ares gave immortality in the days of the ancient Roman Empire. As he’s thinking about the past, another group of men activate Zhao’s website. 5,821 words Added Aug 2024 10k views 5.0 stars (1 vote) No comments yet •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Public Orgasm•Female to Male•Transgender•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Muscle Worship•Man Scent•Butt Growth•Increased Libido•Foot Growth•Getting Handsomer•Transformation•Voice Deepening•Getting Taller•Forced Growth•Size Increase•Hair Growth/Getting Hairy•Incest•Brothers•Father/Son•Twins•Nonconsensual change•Lycra/Spandex•Hyper Pheromones•Supernatural•Immortality •M/M•M/M/M/...

Teacher’s testimony by Six Pecs A teacher testifies to having been part of the inner circle surrounding a young man with godlike powers. 10 parts 41k words Added Aug 2024 Updated 14 Jun 2025 28k views 5.0 stars (39 votes) No comments yet •Cock Growth•Cock Shrinking•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Nipcocks•Hyper Cum•Nipple Emissions•Public Orgasm•Extra digits•Multi-abs•Multicock•Multiarm•Multilimb•Multitorso•Replication•Other Mental Changes•Straight to Gay•Hyper Strength•Muscle Breast•Muscle Growth•Muscle/Strength•Public Nudity•Body Parts in Strange Places•Man Scent•Voluptuous Men•Hyper Anus•Feeding•Foot Growth•Getting Handsomer•Gradual Change•Transformation•Voice Deepening•Getting Taller•Giants•Forced Growth•Plausible Size Difference•Size Decrease•Size Increase•Age Progression•Age Regression•Human to Inanimate•Hair Growth/Getting Hairy•Hyper Tongue•Mouthcock•Age Difference•Incest•Father/Son•Selfcest•Nonconsensual change•Restraints•Rubber/Latex•Absorption•Hyper Pheromones•Infectious•Merging•Shared Body•Possession•Gay Pride•Hypnosis•Mind Control•Shapeshifting •M/M•M/M/M•M/M/M/...

The revisualizer by BRK A set of weird controls at the tiny cable TV broadcasting studio has a lot of increasingly exciting effects on the guy in the picture. 3 parts 11k words Added Oct 2012 Updated 8 Dec 2017 48k views 4.9 stars (41 votes) No comments yet •Always Hard•Cock Growth•Huge Cock•Hyper Cock•Nipcocks•Self-suck•Nipple Emissions•Muscle Growth•Muscle/Strength•Size Increase•Hair Growth/Getting Hairy•Nonconsensual change •M/M

The Black Knights: Coming home by Meddler Incs When an ex-football player, now a local newspaper reporter, investigates The Black Knights, he gets more than he bargained for. 14 parts 24k words Added Oct 2018 Updated 21 Dec 2019 26k views 4.9 stars (18 votes) No comments yet •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Nonconsensual change•Aliens•Symbiotes •M/M•M/M/M

The growth race by SomeMuscleGuy John is left growing uncontrollably as he races to be the first person to finish the race, but he may be too large before he reaches the finish. 3,701 words Added Aug 2022 20k views 4.8 stars (12 votes) No comments yet •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle/Strength•Public Nudity•Butt Growth•Transformation•Voice Deepening•Getting Taller•Giants•Size Increase•Nonconsensual change •M

Keith the new guy by BRK New hire Keith readies himself for his first-day meetings with his new boss, but the twink receptionist is kind of distracting—and why does his shirt feel tight all of a sudden? 2 parts 5,525 words Added Aug 2021 Updated 22 Jun 2024 17k views 4.7 stars (11 votes) No comments yet •Cock Growth•Huge Cock•Multicock•Multihead•Boytaur•Four Legs•Multiarm•Multileg•Multilimb•Three Legs•Multipec•Multitongue•Stacking•Muscle Growth•Muscle/Strength•Getting Handsomer•Getting Taller•Plausible Size Difference•Size Decrease•Size Increase•Nonconsensual change •M/M•M/M/M