A talented scientist develops a revolutionary new muscle-growth serum, and learns the perils of self-experimentation.
1,015 words Added Feb 2020 9,451 views 4.0 stars (9 votes)
|
Dr. Robinsen’s pecs bounced as they slowly expanded out in the now loose fitting t-shirt, covered by a white lab coat. Drinking the serum had been a mistake but it had to be tested on someone and the doctor didn’t trust anybody else. The room was spinning, vertigo was giving way to darkness, as the unfortunate scientist fell unconscious onto the lab bench, sending unlabeled bottles of mysterious chemicals flying.
Outside the manor house, a young junior executive for Body Connections stood knocking at the door. His company had recently purchased a muscle growth enhancement formula from Dr. Robinsen and he had traveled out to the country in person to pick it up. A butler answered the door. “Terry Jones, here to see Dr. Robinsen,” the young executive said.
“You’re expected, the doctor is in the laboratory. I’m to take you there,” the butler replied, leading the way through the impressive manor house. On the wall was a portrait of a man next to his wife and kids. He assumed that was the doctor, although he was feeling guilty about not looking up any information on the Dr. Robinsen beforehand. At the end of a long hallway was a steel door. The butler opened it and stood back. “The laboratory is in there.” He pointed and walked away.
Terry walked into the poorly lit room that smelled of chemicals and animal cages, a little annoyed at being left to find his own way. Then in an instant his heart jumped into his mouth as he saw a man slumped over onto one of the lab benches. Terry ran over and lifted his head. He had very smooth skin apart from the five o’clock shadow that covered his face. His long blond hair was tied up into a ponytail making him look more like a Vegas magician than a doctor. He certainly wasn’t the man from the portrait.
“Dr. Robinsen?” he shouted in alarm, shaking the unconscious man in front of him with difficulty due to his powerful muscular frame. He slowly opened his eyes.
“Yes? What is it?” he said in a stupor, then his eyes opened widely. He felt his chest and then his arms. “Oh no…” He said moving his hands over his mouth. Jumping out of his stool so quickly that he knocked it over, he ran to a mirror and felt his face and body.
“Dr. Robinsen… I… uh… I’m here for the formula. You said we could pick it up today. I’ve been authorized to sign a contract for you for fifty million dollars for the exclusive right to manufacture it.”
He had to repeat himself several times before the doctor would even acknowledge him. Finally he twirled around and said, “No, no! It’s not ready! I have to fix—gnnnn…” The sentence was cut short as his hands grabbed his stomach and he bent over on the floor. “GNNNNN”
Terry watched as the doctor’s body heaved with labored breathing. Veins began to pop out in his neck. “Should I call 911?” he asked.
“No!” he bellowed and them grabbed his throat as shoulders began to expand again. Terry could see the sleeves of his lab coat filling out as the doctor’s biceps and triceps inflated. Was this the growth serum?! How could it be working this quickly?
Terry ran up Dr. Robinsen and put his hand on the man’s shoulder. “What’s happening?!” But he didn’t need an answer, he could feel the deltoid under his hand swelling against his fingers. The doctor’s pecs were imprinting themselves against the t-shirt and stretching it out so much he could hear the fibers straining.
The doctor looked down and grabbed his crotch, feeling incredible pain as he looked down in horror at the bulge that was fighting its way against some very tight jeans. “AGHHHH!” he shouted, quickly unbuttoning them and pulling out a 9-inch soft cock and balls the size of lemons. “Oh god no!” He shouted.
At that moment his pecs and deltoids had swollen so much that they tore his t-shirt down the front revealing his rock-hard core, framed by the lab coat and the torn t-shirt. His biceps burst through the sleeves of the white coat as they swelled out like two massive boulders. Terry backed away, afraid of what was happening as the prostrate man before him groaned in pain.
His denim ripped with an awful sound revealing two massive undulating thighs and an expanding bubble butt. “Fuck… it’s too much! Got the… ratios wrong!” he grunted as his body continued to swell including his feet which he was desperately working to pull out of his shoes.
Inch by inch the doctor grew taller and the expanding body ripped through the tattered remnants of his clothes. His balls sank lower, swelling to the size of baseballs as his now 11-inch soft cock drooped over his massively swelling thighs. His lats pushed those massive arms outward as his back thickened with extreme definition.
He struggled to stand as his traps fully engulfed his neck and his pecs continued to swell, forcing his nipples downward. He looked at his body in horror and looked up at Terry. “Get out! Get out now!” he roared, overturning a lab bench with a smash.
Terry bolted from the lab and down the hall without looking where he was going causing him to collide with a portly man in his fifties. “What the hell is going on down there!?” he shouted.
Terry recognized him from the painting in the hall. “Dr. Robinsen!” he shouted. “There’s a man in there, you…your assistant maybe? He’s changing… going berserk!”
“What are you talking about? I’m Johnathan Robinsen. Dr. Robinsen is my wife!”
Terry’s eyes grew round as saucers. “Ohhhh dear… I… I… think she may want some time to herself right now,” he said and ran out the front door.
1,015 words Added Feb 2020 9,451 views 4.0 stars (9 votes)
|
|
Getting more than you bargained for by Tereshky Most people do their growing before the pose-down, but this bodybuilding competition is not what it seems. 2 parts 3,922 words Added Jan 2013 39k views 4.5 stars (14 votes) No comments yet •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Multiarm•Multilimb•Multipec•Stacking•Muscle Growth•Muscle/Strength•Getting Taller•Giants•Size Increase •M/M
SpoogeQuest by BRK After pissing off his game-developer ex, Vlad finds himself inside an open-world gay erotic fantasy game where everything about him is up to 11—and, unless he undertakes a perilous quest, further changes will await him. 4,829 words Added Sep 2019 14k views 5.0 stars (12 votes) No comments yet •Cock Growth•Huge Balls•Huge Cock•Multicock•Replication•Muscle Growth•Muscle/Strength•Plausible Size Difference•Size Increase•Selfcest•Witch/Warlock/Wizard•Fantasy Realm
Alpha Luke passes on the lore by Eric Aaldersen Luke and Brian’s story finally reaches its climax and afterwards things get positively mystical. 4,887 words Added May 2020 10k views 5.0 stars (6 votes) No comments yet •Cock Growth•Huge Balls•Huge Cock•Muscle Growth•Muscle/Strength•Gradual Change•Supernatural
A Barber story: The Titan Brothers by Ogrebear Two men from opposite ends of life get a world-changing haircut. 5,252 words Added Dec 2022 15k views 5.0 stars (10 votes) No comments yet •Cock Growth•Huge Balls•Huge Cock•Public Orgasm•Hyper Strength•Muscle Growth•Muscle/Strength•Getting Handsomer•Getting Taller•Plausible Size Difference•Size Increase•Age Regression•Hair Growth/Getting Hairy•Retcon•Suggestion•Incest•Brothers•Twins •M/M
Made of lad by brazboy An explorer wants to find the marvelous and ancient temple of Karkok, but he gets to experience many wonders he didn’t sign up for—what he finds, at the end of the day, is something way more precious than a pile of bricks. 2 parts 7,224 words Added Nov 2023 11k views 5.0 stars (8 votes) No comments yet •Cock Growth•Cockfucking•Huge Balls•Huge Cock•Hyper Cock•Prehensile Cock•Self-suck•Hyper Cum•Multi-abs•Multicock•Boytaur•Four Legs•Lots of Legs•Multiarm•Multileg•Multilimb•Multipec•Replication•Hyper Muscle•Immobility•Muscle Growth•Muscle/Strength•Public Nudity•Detachable•Giants•Size Increase•Tongue Growth•Mouthcock•Flying•Complete •M/M
Outgrowth by BRK Warin gets a special gift from his boyfriend—one that lets him be much more than just a pretty boy-toy. 2,905 words Added Feb 2024 14k views 5.0 stars (8 votes) No comments yet •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Hyper Muscle•Muscle Growth•Muscle Gut•Muscle/Strength•Belly Growth•Gradual Change•Giants•Size Increase•Age Difference•Dom/Sub•Valentine’s Day •M/M
The real you 4 by MegaMaker Trevor, a mutant and proud thereof, thinks he’ll spend his evening soak in the gym hot tub alone. That’s until a sweet guy named Danny catches him rubbing one out. They have a heart-to-heart and Trevor finds out that Danny wants to become a mutant, too, to be seen as more manly. 7,405 words Added Oct 2024 8,252 views 5.0 stars (2 votes) No comments yet •Always Hard•Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Always Cumming•Hyper Cum•Public Orgasm•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Muscle Worship•Always Shirtless•Public Nudity•Man Scent•Voluptuous Men•Butt Growth•Increased Libido•Getting Handsomer•Voice Deepening•Getting Taller•Forced Growth•Size Increase•Lycra/Spandex•Shapeshifting •M•M/M
Call of the incubus by DaBook Recent college graduate Adrian Castille has started noticing cults rising up around his city. He investigates, following a cult to an abandoned warehouse, and witnesses a deadly ritual, and finds himself face-to-face with a powerful incubus. He stands his ground, telling the incubus he will be stronger than him. 9 parts 47k words (#93) Added May 2024 Updated 26 Apr 2025 25k views 5.0 stars (19 votes) No comments yet •Cock Growth•Cock Shrinking•Cock Theft•Huge Balls•Ball Growth•Huge Cock•Public Orgasm•Muscle Growth•Muscle/Strength•Muscle Worship•Man Scent•Pointy Ears•Butt Growth•Increased Libido•Getting Handsomer•Gradual Change•Transformation•Getting Taller•Plausible Size Difference•Size Increase•Hair Growth/Getting Hairy•Dom/Sub•Sex-Slave•Hyper Pheromones•Incubus/Succubus•Supernatural •M•M/M•M/M/M•M/F•M/Inh
I’m glad you’re here. For more about Metabods, visit the About page here.
Share your fantasy at submit.metabods.com (Credit: Artofphoto)