Muscle Growth Stories

Andrei found himself in yet another painful meeting at work, he had already caused trouble in the past for comparing about how boring the meetings were, so he knew he had to be on his best behaviour so he wouldn’t upset his boss. This was starting to become difficult though, he had bought a new protein powder from a strange website and something wasn’t sitting right in his stomach.

30 minutes go by and the boss still hasn’t gotten to the point of the meeting and Andrei was feeling a lot worse, the room started feeling physically smaller, he felt claustrophobic in his own shirt.

It was only when his giant biceps ripped through his sleeves he realised something was very wrong. He was panicked but tried to stay quiet. There was only 10 minutes left to sit through and nobody was looking up from their notes, he just needed to not draw attention to himself.

Fate had over plans, his now giant body pressed against the people sat next to him and suddenly everyone was looking at him.

His boss shouted “I don’t know what sort of weird prank you’re pulling here Andrei, but this is the last straw. GET OUT”. Andrei barely noticed this though, he was putting all his energy into resisting the muscle growth.

Beware of napping on this sofa, or you might find yourself too heavy to get off of it when you wake up…

Marino was an absolute stud, his body was muscular and curvy. He was the sexiest bottom in the entire city, but he was never satisfied. After buying some blue shorts from growthINC he thought he’d have the biggest legs and glutes on the planet.

One week later and he was looking better than ever, however he was concerned about how full of muscle his upper body was growing. He was going straight from twunk to full blown hunk.

After two weeks he was gigantic, he couldn’t even sit in his car due to his bulging glutes. The shorts were stretched to their absolute limit.

Oh god what does the boss want now, I walk over to Jamars office and see him standing in the entrance looking bigger than usual. “Damn boss you’re looking good”. He laughed and said I know, but I’m about to look even better. You’re one of the bigger guys in the office aren’t you. I definitely was I hit the gym 6 times a week for almost 4 years now, and after a recent bulk I was looking huge. “Um I guess, why do you ask?”. Well I’ve got this new app that in case you haven’t noticed absorbs peoples muscle mass, how about 40 pounds of muscle and you can have that team leader position that’s opened up? I’d been wanting that job for over a year now and he knew it, but 40 pounds of muscle was insane, however I knew I had no choice, the extra money would change my life.

Good choice, now the jobs yours unless someone outbids you….

One week later Jamar called me into his office again, I had wrongly assumed this was my promotion meeting.

As you can probably tell, there’s been a lot of competition for this role, some staff members are almost skin and bone trying to get the highest bid, not that I’m complaining, I feel fucking amazing. *He gestures to the phone* highest bid is 90 pounds of muscle, so just 51 more pounds from you and the jobs yours? Could I really do this I thought to myself, this would take me back to square 1, in fact I’d be weaker than when I first started the gym but I had already committed I had no choice, “I’ll do it boss”.

1 week later I walked into the bosses office and he was posing in a newly fitted mirror.

Oh hey about that promotion, so it turned out the whole office kept fighting for it and we couldn’t decide on a winner, the entire office are all basically skeletons now, so whoever gains 50 pounds of muscle first gets the job!

“You wanted to see me coach?” asked Jason. Coach Mike grinned after seeing him walk in. “Yes Jason, I think you’ve already made such impressive progress since you started here, you’re already the biggest on the team… but the finals are in 3 weeks and I think you need a boost”. Coach handed Jason a syringe with a mysterious liquid in it, without hesitating Jason injected himself, “Anything for the team coach”.

Jason arrived next week looking absolutely huge, Coach Mike was incredibly impressed but what he hadn’t told Jason was that he was only supposed to take a small dose of the syringe per day. He was going to say something but after seeing Jason’s huge bulging body, he decided just to sit back and see how big he could get.

Week 2 arrived and Coach Mike felt his office floor start to shake, Jason arrived shortly after and had to awkwardly get through the door sideways, grazing his massive pecs on the door frame. “Uhhh coach, don’t you think this is enough”. Coach knew how to stop the growth from continuing but couldn’t control himself, “Nonsense Jason! If you can fit through the door then you’re not big enough, I’ll see you next week in my office with your kit on ready for the game.” Jason nodded and walked out, floorboards almost buckling whilst he waddled out.

So you’re sure that’s an XXL asked Coach. “Yes I’ve tried 4 different shirts on” Jason said whilst panicking. “They’re going to disqualify me! My career is over”. Jason put his head in his hands on Coach’s desk, totally destroying it under his bulk. “Now, now, not to panic” said coach, “I think we can get you a better career, take this and everything will be alright”, he said whilst handing Jason another syringe….

Radu had spent a long day sightseeing and was absolutely exhausted, he was looking forward to having a rest on the 2 hour train journey back to his accommodation. His muscles were bulging through his compression shirt as per usual and he attracted the attention of a local woman. She complimented his gigantic body and even recommended him some music.

The music was unlike anything he had heard before, he was absolutely loving it. It seemed to connect with him physically, giving him a warm sensation throughout his body.

Radu’s body buldged in all directions whilst he inflated in size and ripped through his clothing, but he didn’t seem to notice. The song was far too distracting.

Radu found more work from the artist and began listened to all of their sounds, whilst turning up the volume for maximum enjoyment.

It was another morning for Siah, he’d been to the gym and had at least an hour of posing in the mirror to look forward to. He knew he was a hunk and that he was better than everyone else.

With a sudden burst of growth, his jeans began to split. “Bro these are my favourite jeans, I must be getting even bigger than I thought” Siah said to himself. He was becoming so cocky his body seemed to react to it.

His entire body bulged and inflated, his jeans were almost totally destroyed and his jawline was so defined he almost didn’t look human. Siah laughed to himself, most people would be horrified at such a transformation but not him, he knew he was destined for this power and he wanted more.

Siah continued to grow, bursting through his jeans showing off his impressive package. “I’m so fucking hot” he said to himself whilst posing in the mirror. And then suddenly after another 10 minutes of growth, it stopped. It seemed his own cockiness only got him so far.

Simeon was obviously a sexy black muscle hunk but he always yearned for more. One day he bought a used camera from eBay to improve the quality of his OnlyFans videos but unknown to him, the camera was cursed.

Anytime it was recording someone, it morphed their body to look like what what their subconscious desired.

Simeons body swelled with power fast but when a sudden surge of muscle expanded his biceps, it made him flex and throw the camera in front of him.

The lens shattered and all of sudden, Simeon ballooned with muscle. He never wanted to be this big, but with the lens broken the curse went out of control.

Simeon’s growth was getting out of control fast, the camera was still pointing to the mirror and if he didn’t turn it off soon, he’d outgrow the whole house.

Bending down became a titanic effort, his cannonball biceps brushed against his giant pecs whilst his monstrous back struggled to bend due to the sheer muscle piled onto it.

As Simeon slowly bent down towards the camera, the growth seemed to increase, almost trying to stop him from reaching it. He just had to stop the recording and delete the footage to turn back to normal.

GrowthINC introduced a new scheme in their laboratory, the GrowthMill. The longer a subject runs on it the bigger they get. Andrei of course trying to stay ahead of everyone made sure to get first use of it.

It had only been tested by someone physically unfit who could only manage 10 minutes, there was no way of knowing what it could do to a bodybuilder!

Andrei had already packed on some serious size after the 10 minute mark and had no intention to slow down anytime soon, however his shorts were definitely starting to strain from his sudden mass increase.

Not wanting to stop running he ripped them off, allowing him some more breathing room. Thankfully GrowthINC provide a super stretchy poser with all their experiments.

After 45 minutes Andrei was becoming exhausted, not only from the long run but the sheer weight of his body was a lot of effort to keep holding up, especially with his huge thighs constantly rubbing together now after each step.

It was just another day for Leo, posing seductively on his sofa flaunting his unbelievable body to his OnlyFans subscribers when suddenly he felt a strange warmth within him.

He took another selfie and somehow his body had ballooned in size, most people would be terrified by this by Leo’s lust for muscle and power knew no limits.

Again he expanded, his boxers placed perfectly between his legs now looked comedically small compared to his gigantic thighs. His subscribers were absolutely loving it, but that was enough thirst trapping for the day, it was time for Leo to hit the gym.

Due to his unbelievable muscle growth, Leo had to improvise for gym clothing. One of this stretchy black tank tops was enough to cover his heaving chest and a poser used to film some of his more intense videos was the only thing he could get over his legs. He was barely clothed but technically all of the areas that were required to be covered were just about covered.

Leo refused to let his recent transformation get in the way of his workout and he began weight training, as well as some cardio to finish off the session.

However as he grabbed his bag, the familiar warmth feeling came back, it seemed as if his workout had triggered another wave of growth.

Leo tried to leave the gym as soon as possible as he knew there wasn’t much time before he would explode with size.

His thighs were so big that he had to waddle to his apartment, his muscles all groaned and swelled due to the incoming expansion as people took pictures and watched in amazement.

Just as Leo made it into the apartment, his tank top finally snapped. It had managed to avoid his pecs being on display for the entire city though.

Jeff was always one of the most popular jocks at his college, he had one of the best physiques possible in terms of aesthetics but Jeff was greedy, he wanted more. The “power poser” from GrowthINC & Calvin Klein was on a trial run for a few volunteers and Jeff thought this would be his chance at greatness.

It had only been one week of wearing the poser and the results were staggering, Jeff was hotter and bigger than ever. With three more weeks still college started again, he knew he had an opportunity to shock the campus.

After 2 weeks Jeff was bigger than his wildest dreams, he knew he was already massive but something deep within him, something almost primal told him it wasn’t enough.

After 3 weeks Jeff was no jock, he was a god. Whilst he looked amazing he did have the dilemma of having no clothes to wear on the first day back, he tried his best to find something out of his wardrobe and headed to class.

Jeff had never felt such pride, he could barely even fit in his seat, his tank top looked like a crop top and his thighs were so massive that they rubbed together and no trousers would ever be able to fit him. Everyone was looking at him, EVERYONE, including the teacher.

He wasn’t impressed by Jeff’s wardrobe choice and sent him out of class until he could cover his bulging body. Unfortunately a side effect of the “power poser” was that if anyone rejected its effects it would rapidly increase the muscle growth.

Jeff waddled out of campus whilst his thighs rapidly expanded. He began getting attention from a crowd of students, but it wasn’t the positive attention he had hoped for, they were terrified.

Their rejections only caused even more growth, Jeff was so heavy the ground literally cracked under him, he had to get out of campus and fast, otherwise he’d be an immobile ball of muscle.

Jeff ran as fast as his 3 ton body could go, everyone movement became more and more difficult as his body got heavier and heavier.

Jeff practically had to smash through the door to fit into his dorm room but he was finally away from people judging him. It was ironic that the thing meant to make him even more popular, had forced him to become a recluse.

Tarquin was doing his normal walk home after his daily outing to his local coffee shop. Unknown to him, his rival Richard had put a GrowthOrb made by GrowthINC into his bag. Richard had been jealous of Tarquin’s fashion sense and elegant body for years, it was about time he bulked up.

You would think that Tarquin would notice his arms splitting through his sleeve and his beard beginning to grow but that’s the unfortunate side effect of the GrowthOrb, the user doesn’t notice anything happening until the orb is in their line of sight.

Within minutes Tarquin became almost unrecognisable, whilst he looked like the pinnacle of male beauty right now, if he doesn’t notice the orb soon he’ll be out of control.

Richard’s plan was working a treat, Tarquin had bulked into a hairy brute, whilst he was not ugly by any means, his modelling agency would never work with him again looking like this.

His hair grew over his bulging pecs and chiseled 8 pack abs, which was a good thing since he was wearing almost nothing at this point. Tarquin was unlucky as if he’d seen someone they would have reacted to a 9 foot, 2 ton muscle monster walking down the street but taking the quiet backstreets of London had backfired for him today.

Josh was desperate to make a name for himself at the bodybuilding awards. He had a great physique but knew it wouldn’t be enough to make the headlines.

Josh invested in some GrowthShorts from GrowthINC and after his workout he awaited the results.

Almost instantly his muscles ballooned in size, these shorts were amazing, almost too amazing.

Within minutes Josh had become bigger than his wildest dreams, his head looked comically small nestled between his giant traps and heaving pecs but he knew he needed more.

GrowthShorts harness the power from a workout and transform it into pure muscle mass. However they were meant to be single use, Josh was pushing them to the limit.

When Josh arrived on the red carpet he certainly became the centre of attention, GrowthINC made sure to capitalise on the free marketing and sent him a pair of GrowthShortsSuitEdition.

Evan is one of the most popular streamer hunks around at the moment, it may come as no surprise to you that he receives thousands of pounds in donations every time he goes live. Because of this many brands reach out to collab with him, he usually declines the offers but a company called GrowthCoin intrigued him. Viewers could donate via GrowthCoin and it would affect the streamers body directly.

Within 10 minutes of going live Evan’s body had expanded a considerable amount, his trademark blue Nike boxers were already struggling to keep up.

After 20 minutes, Evan was already 5 times the size of his old body. He had almost 10k viewers watching him swell up into a muscle blimp and despite the concerns of getting too big, he was making far too much money to care.

After 30 minutes the reality of the situation had started to set in, Evan tried to get off the floor to shut the stream off but he couldn’t lift the sheer bulk of his body up.

After an hour Evan was practically begging people to stop donating, but the crowd was invested. He had almost 90k viewers and was on the main page of the site. People wanted to see how far this could go.

After 3 hours the GrowthCoin sponsor stream was officially over and whilst nobody could donate anymore, Evan still couldn’t get up to reach his pc. Over 200k people watched in amazement as a 10 ton mass monster struggled to even move his hulking body.