**This story may contain: huge muscles, muscle growth, huge cocks, cock growth, anal, excessive cum, hardcore sex, squirting, drugs, steroids and probably some other great stuff.
Less than 14 days left until the bodybuilding competition and Peyton has gotten to the lowest body fat percentage that she could ever achieve while also gaining a significant amount of muscle mass. But she still wasn’t satisfied with her current results. This competition was everything to her. Or at least that’s what she kept telling herself. She needed to be the best and that meant gaining as much muscle as possible, no matter the cost. Even so, it seemed that she has already reached her maximum potential. She just couldn’t get any bigger, even after taking every single steroid on the market and doubling her protein intake for the past year. “I gotta do something! I need to get bigger. Can’t risk looking like a skinny wimp with 10.000 people watching the show!” she thought to herself as she completed another set of bicep curls. Her biceps bulged with raw power and definition like 2 fresh apples stuck under her vein-filled skin. She was by no means a small girl. She actually looked like she could win any female contest just by showing up and even make a couple of male performers cower in shame too. But her mind said otherwise. She wanted more. She wanted to break genetic boundaries and become a bodybuilding icon. She wanted to break every record possible, be it for male or female muscle mass. She put the weight down and immediately called her nerdy friend and asked him to come over and enter the dark web in search of a growth serum or any kind of drug that could help her get fucking huge. She promised to give him a bicep job if he managed to get her what she wants. This computer geek had been her go to man for years now. He never turned her down before, mostly because he would to anything to be in the same room as her, let alone to get his dick pleasured by such a muscular goddess.
They eventually stumbled upon a sketchy-looking product that showed plenty of before/after pictures with promising results. There was also a small note at the bottom of the page, something about the recommended dosage and how one should not take more than a single shot every month for 6 months in a row in order to achieve the desired outcome. Peyton didn’t bother reading all that boring shit. The nerd ordered an entire year worth of muscle serum and then she delivered on her promise. She gripped his 5-inch dick between her huge bicep and thick forearm and began stroking him. She stuck his head between her muscular thighs as she jerked the poor fucker off like she owned his dick. She squeezed her legs and ordered him to lick her wet cunt and fat clit like the worthless slave he was. His cum came out after less than a dozen strokes from Peyton’s huge arm. She laughed and called him a fucking excuse of a man and continued to jerk him off just for her own entertainment. His cock became red, just like his face as he struggled to breathe between her muscular quads. “I know you got more cum in there! Give me more protein and I might not rip off your pathetic cock with this rock-hard bicep!” she said as she grabbed his balls with her free had and began squeezing them too. She drank the first load and was eager for another one. Her movements were so rough the poor guy had no choice but to cum yet again, busting an even bigger load than before. Peyton drank the creamy cum again, making sure to swallow every single drop of protein his laughable balls managed to produce. She actually contemplated ripping his cock off just for the hell of it, but decided against it thinking that she might need him later. She let go of his exhausted penis and then separated her legs, allowing the wimp to finally breathe. “There! You got your prize. Now get the hell out! I got some real dick to fuck and then some more training to do until the drugs get here.” she said as she stood up, towering over his frail physique like a colossus among common men. She grabbed him by the neck and threw him out, resuming her much more important schedule for the day. She went on to use her fucking machine to pleasure her womanhood for a couple of hours and then proceeded to do another brutal workout before she went to sleep.
The package arrived the next day and she immediately opened it. She had no time to lose with the competition rapidly approaching. She needed results. Just like before, she didn’t bother reading the labels or instructions on the juice-filled syringes. She went to her home gym, took a sit on one of the benches and said: "Well, here goes nothing!" She then emptied the entire syringe into her already massive veiny bicep as she let out a loud groan. Then serum immediately kicked in as her eyes widened and her entire body began shaking. She started feeling hot, like she had molten lava rushing through her veins and filling her entire body with an intoxicating sensation of power. Then her body started growing. Slabs of muscle started piling up on to her already huge frame from every angle. Her clothes began to tear and eventually ripped apart as she got so huge they simply couldn’t contain all that muscle. She was moaning, screaming and groaning at the same time. She couldn’t help but flex her muscles as they kept getting bigger and more defined. She got in front of the mirror and almost had an orgasm as she saw her gorgeous body adding pound after pound of hard beef with every passing second. She hit a most muscular, the best pose she could think of that could truly emphasize her glorious growing physique.
She stood there naked, he body shaking and her muscles pumping themselves bigger, with massive juice-filled veins appearing all over the surface of her stretched-out skin. And this was only the first dose. She loved what she was seeing. She loved the feeling of muscles building themselves bigger and freakier. Her growth wasn’t even over and she took a second syringe from the case and inserted it into the other arm. “FUCK YES!! GIVE ME MORE!! FUCKING GIVE ME MORE BEAUTIFUL MUSCLES!! MAKE ME HUGE!!” Her breaths were deeper and more powerful by the second. She was truly becoming a roided-up beast. Peyton didn’t give a fuck about “recommended dosages” and “safe gains”. She was getting what she always wanted and that’s all that mattered. Before taking the first dose she weighted about 200 lbs and had close to 6% body fat. Now she went over 300 lbs and the little fat she had left was slowly being consumed by her raging body and turned into muscle as well. 5% was extremely low for a normal human being, but Peyton wasn’t a normal woman. She wanted no fat at all. She wanted to be all muscle, all raw chemically-enhanced woman beef. Fat veins didn’t just swarm the young bodybuilder’s back, but also her chest, arms, legs and girly parts. She could feel thumb-sized veins making their way to her womanhood, pumping it bigger and freakier, just like the rest of her freakishly large frame. It seemed the second injection also gave her 6 inches in height, placing her at 6’8’’ tall. Her clit grew too, becoming so fat and sensitive even a small touch could make her squirt a small pond all over the gym floor. She lifted her arms up into a massive flex and a powerful grunt came out of her mouth as she had her first massive musclegasm. She flexed so hard she came like a geyser. Her pussy was firing HGH-filled woman juice like a damn fire hose. “YES!! YES!! YES!! I’M CUMMING FROM FLEXING MY GORGEOUS FUCKING MUSCLES!! I’M GONNA GET EVEN BIGGER!! NO ONE’S GONNA BE BIGGER THAN ME!!” she screamed as she stared at the swelling mounds of muscle that fought for space all over her chest, shoulders, lats and arms.
Her total weight was 400 lbs after the massive orgasm and the growth was far from over. She was now moaning in uncompromising, burning, crippling lust. Her legs became so huge that no human torso could ever hope to compete with their size and definition. Her former tits were no more and have now been replaced with huge concrete plates of hard beef that could easily stop bullets or even cannonballs with their extreme thickness. The mounds of muscle fibers in her calves were easily big as a grown male skull. When her biceps became larger than her own head, that’s was when Peyton knew she had reached a level no other man or woman could match. And that made her extremely horny. She didn't even have to look at her crotch to know massive changes had been made to it. It was almost like she had a cock of her own. She was now over 500 lbs and it was getting harder and harder to move her limbs because of the rapidly accumulating mass. Still, she had to do something about her still unsatisfied pussy. She grabbed a 50 lbs dumbbell and shamelessly shoved it inside her vein-riddled womanhood. “FUCK YEAH!! THAT’S WHAT I’M TALKING ABOUT!! MY BABY GIRL NEEDS SOMETHING BIG AND HARD TO FILL HER UP!!” she said with complete lust blurring her every thought. She then started pushing the massive dumbbell in and out of her wet cunt, using only her pussy muscles do to the fucking. This was easily the best pussy workout she’s ever had. But her body yearned to be stimulated too. She grabbed every 100 lbs plate she could find and added them on the barbell one would normally use to do squats. She put 500 lbs on one side and another 500 lbs on the other. She then started doing biceps curls. Her massive biceps bulged and creaked as she did set after set with more than 1000 lbs of steel. “FUCK YES!! GIVE MY FUCKING GUNS A WORHTY WORKOUT!! LOOK AT MY BEAUTIFUL BABIES GROWING BIGGER BEFORE MY EYES!! IT WON’T BE LONG UNTIL I’LL NEED BIGGER WEIGHTS!!” She kept curling the massive weight and her body kept responding accordingly. Her biceps became so bloated she couldn’t even bend her arm all the way anymore. “… 998… 999… 1000. TIME FOR ANOTHER DOSE!!”
Peyton’s heart could be heard even through all that thick layer of beef pumping blood like crazy. It was working well beyond its full capacity to make sure its muscle-obsessed owner had enough blood to fuel her ridiculous growth. But her heart’s well-being was merely a passing thought to the giant hulking woman. She was now 600 lbs of throbbing female beef and the body fat percentage dropped below 3%. Peyton’s column-sized legs were now soaked with her abundant cunt juices. Even during the insane workout, her muscled pussy continued to play with the dumbbell like it was nothing more than a plastic sex toy. She eventually decided to push it out and did so with incredible force, making it crash against the cold floor below, cracking it and making a loud noise all over the home gym. She then grabbed 3 more syringes and stuck them wherever she could reach. One went into her bulging quad, one into her ballooning chest and another directly into her throbbing clit. “FUCK YES!! GIVE ME MORE!! MAKE ME A FUCKING MUSCLE MONSTER!! I WANT TO BE SO FUCKING MASSIVE I WON’T BE ABLE TO MOVE MY ARMS AND LEGS ANYMORE!!” This was the point of no return for Peyton. She wasn’t just gonna grow bigger. She was gonna grow to the fucking extreme. She was not gonna stop until she either achieved her dream body or died buried under her own hulking mass.
Her body was quickly overwhelmed by the sensation of three different pressure points pumping more steroids into her overloaded system. Her traps rose higher than her head, her shoulders became so big they pressed against her humongous chest plates and her 6 pack morphed into a bloated 8 pack. She was becoming even more of a musclebound freak and she loved every second of it. 600 lbs quickly turned into 700 and a minute later she reached a whopping 800. She grew and came like a fucking orgasm machine. She was simply lost in a river of beef and mind-breaking orgasms. She was past any form of femininity, human or otherwise. Her once carefully built and defined female curves have now been replaced with a monstrous pile of twitching, throbbing slabs of muscle. Her heart raced faster and her internal organs started to really feel the pressure of her inhuman musculature. She grew another few inches in height, now standing 7 feet tall. But the small increase in height did very little to compensate for her massive increase in width. She was easily as wide as a double door, her back looking more like a roadmap of cable-sized veins with every passing second. Her biceps pressed against her lats and she could barely walk thanks to her thighs being so huge they grinded against each other with every move. Her pecs rose higher as they became as large as monitors, now making it difficult to see the lower part of her body. She was in a continuous state of bliss. Her mind couldn’t process the amount of pleasure her growing body was giving her. She wanted to flex her muscles again and see their undeniable beauty but her limbs were so packed her range of motion became very restrictive. Her clit was so fat the mere thought of touching it made her cum yet again. She also wanted something bigger to stick inside her pussy but the never-ending sea of muscles made it very difficult to pick anything up. “GOTTA GET BIGGER!! GOTTA GET FUCKING HUGE!!” she said as she struggled to reach for the case of roids. No matter how much she tried, her muscles were simply too tightly squeezed together to allow her to grab something from below her chest level. She could feel her orgasmic growth slowing down as well. Peyton wasn’t gonna accept that. She looked at the gym window and realized she had to find help outside. “I NEED TO GET SOME POOR FUCKER IN HERE TO HELP ME REACH THE DAMN ROIDS!! I’M SO CLOSE!! I JUST NEED A COUPLE MORE DOSES TO BE PERFECT!! NOT GONNA STOP NOW!!” Peyton said as she started walking towards the window. She wasn’t gonna squeeze through. She was gonna smash through the insignificant wall that stood between her and her desire for more muscle mass. Her calves violently twitched with every floor-cracking step she took, her breaths deeper and stronger by the second. Her growth stopped around the 10th step. She was now packing about 850 lbs of hard female beef. Her body throbbed and her veins bulged as she pressed on towards the unsuspecting world outside, determined to do anything in order to grow bigger.
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