Jonnie’s Growth, by AbyssPlanet

[Flexday]

An amazing story from the legendary author of Lara's Muscles!



Jonnie closed the front door and turned, package in hand - it was here, after long last. She took the box into the bedroom and eagerly tore  it open, revealing a small vial full of a faintly glowing green liquid carefully packed. She looked down at the box, a smile slowly spreading across her beautiful face as thoughts raced through her mind; the vial's contents would, she hoped, allow her to fulfill a long-held dream.

For years, Jonnie had been fixated on her body. She wasn't fat - far from it, her figure was quite trim and slender, in no small part due to her daily trips to the gym. However, that was the problem: while most women would be more than satisfied, even envious of, Jonnie's slender build, Jonnie longed for something more... unconventional: muscle. For as long as she could remember, she had been enamored with muscular women - the bigger, the better. And not just that, she wanted that sort of physique for herself. The kind of physique born of countless hours in the gym, pumping and straining, inducing as much muscle growth as possible. She didn't just want to be muscular, no, she wanted to be HUGE. She had her sights set on the biggest of the big women, heavyweight apex female bodybuilders, their bodies bulging with sculpted muscle, powerful, massive, in a league of their own. And so she had dedicated herself to the gym, going near daily and by all accounts Jonnie had busted her ass. Much of her body fat had melted away, and she had actually become impressively strong for a woman her size. But what never came was the muscle - no matter what she did, she didn't seem to get any bigger.

Jonnie scoured the internet for solutions - supplements, workout routines, anything she could think of, but she simply couldn't break through her plateau. Frustrated and discouraged, her searches became more desperate and she began to dig into the dark web, trying to find something - anything - that would give her what she desired. And finally, she had found it: a supplier of fitness supplements who offered what she was looking for - a new experimental steroid. According to the seller, the stuff was cutting edge, smuggled out of some experimental lab in some former Soviet eastern bloc country, and absolutely revolutionary. No negative side effects, rapid absorption, and guaranteed results. For all intents and purposes, a literal real life muscle growth serum. Jonnie knew she HAD to have it, and she needed it yesterday. It hadn't been cheap, but the seller assured her that she would be more than satisfied. She bought it without hesitation, and waited with increasing anxiety and eagerness for the package to arrive. In the meantime, the dark web seller had vanished without a trace, their digital footprint completely gone. Had she been scammed? And finally, the package - it was here and in her hands. She could hardly believe it.

Having come back from the gym just prior to the package's arrival, Jonnie still wore her typical gym attire - blue leggings and a stretchy long-sleeve top that clung nicely to her slender frame. She considered changing, but the desire to drink the serum was overriding, her thoughts completely consumed by what she desperately hoped it would do to her body. She took the vial out of the box, unscrewed the lid, and downed its entire contents in one gulp.

She stared at herself in the mirror, waiting for... what? She actually didn't know what to wait for, but surely the serum would do something, right? Right...? It couldn't be a dud! Her anxiety began to mount again at the thought that she'd been scammed, and then suddenly... a warmth, deep within her belly. It was hard to pinpoint exactly what it was, it was practically indescribable, unlike anything she'd ever felt before, but whatever it was she could feel it building, and it felt... good!

Gradually Jonnie felt a tightness across her entire body, a sense of pressure, again unlike anything she'd ever felt before but still... pleasant. The feeling continued building and building inside her as she stared at herself in the mirror until, almost imperceptibly, she felt her gym clothes shift and grow a little tighter, as if they were shrinking. She stepped closer to the mirror, scrutinizing her body, and her eyes widened - her arms were definitely bigger! It wasn't much, but it was there! Holy shit! The serum worked! As she stood there scrutinizing her shapely body, Jonnie felt the tightness and warmth begin to increase all across her body, and slowly but surely her body began to gradually swell, her muscles seemingly synthesizing mass from thin air. It was gradual, but she watched as her shoulders began to broaden, round deltoids taking shape as her arms continued to thicken, small biceps becoming apparent inside her sleeves. She felt her chest begin to broaden and thicken, the beginnings of muscular pecs beginning to thrust her breasts outward, and her legs began gaining mass in the confines of her leggings. In short order, her formerly slender body had begun to look like that of a fitness competitor, and a very respectable one at that. A far cry from anything she had been able to achieve on her own in the gym, but as far as Jonnie was concerned, this was merely a good start, far from what she had hoped to achieve.

She continued to watch, however, as the growth pushed onward, feeling her clothing drawing tighter as the muscles underneath became more prominent, her body looking increasingly powerful as the seconds ticked by. Her excitement increased as she watched her formerly slim body indisputably encroaching on bodybuilder levels of muscular development, prominent biceps pressing outward against her sleeves, developed quads and well-formed calves filling her leggings, large deltoids and visible pecs filling her top. She felt her back thickening and broadening, drawing her top tighter on her torso, firm ridges of her abdominals beginning to show through the front of her clothes as her body steadily swelled.

Jonnie felt her clothing becoming increasingly tight, beginning to stretch, showcasing well developed muscle shapes standing out all across her body as she watched her physique continue to increase in mass as it surpassed that of a middleweight female bodybuilder and climbing, heavyweight status fast approaching.

"Come on, bigger..." she urged her burgeoning body as it swelled, muscles continuing to pump up under her clothes, the leggings and top beginning to strain to accommodate her increasing mass. Within moments she looked like a heavyweight female bodybuilder, all large, well-developed muscles filling out every part of her body. She hadn't grown any taller, but holy shit was she definitely bigger. A LOT bigger. She looked huge, powerful, like the women she idolized, muscles everywhere. She easily dwarfed the largest women she had seen at the gym. It was everything she wanted, everything she had hoped it would be - she was ecstatic, her mind spinning about her next trip to the gym, how all eyes would be on her and her newly minted bodybuilder physique.

That is, until she noticed that the growth hadn't stopped. It hadn't even slowed down. Hell, if anything it was picking up speed.

Thoughts raced through Jonnie's head as she watched her muscles continue to swell underneath her clothes, her body continuing to bulk up. She hadn't counted on this, she expected her body to top off at the high end of female bodybuilder levels of development. She would have been more than happy with that - overjoyed, even. But as she continued to watch her growth, the realization dawned on her that she was destined for, quite literally, bigger things.

While Jonnie had long ago set her fitness goals at "heavyweight female bodybuilder" levels, something realistic, something hypothetically attainable, deep down her fantasies were more, let's say, extreme. REALLY huge muscles, the kind that only very seasoned male bodybuilders could attain - no, bigger than that, stretching the conceptual limits of human muscular development. THAT was what she longed for. She knew she'd never manage to achieve it, but still the fantasy persisted, unattainable.

Until today.

Jonnie watched in awe as her body steadily left the largest female bodybuilders in the dust and was very obviously encroaching on male bodybuilder territory. Her clothing was clinging extremely tightly to her burgeoning body, massive swells of muscle pulling at the seams and showcasing incredible muscle definition even through the material. Her biceps were huge, swollen with incredible power, and backed by large, well-defined triceps. Her forearms were thick and meaty, promising incredible strength, and her large, rounded deltoids were bulging with mass. Her thick, very well developed pecs were thrusting forward, and she could see her prominent six-pack pressing against the tight material. Her thick lats and heavily muscled back were similarly constricted, ridges of muscle pressing outward against the material with remarkable size and density. Her traps were large and prominent on her shoulders, encroaching up her neck, which was getting increasingly thick and beginning to strain at the collar of her top. Her lower body didn't fare much better; large, bulging quadriceps displayed prominent definition clearly through her leggings, and her calves were swollen with amazing mass, her legs looking unbelievably powerful.

Feeling her muscles growing was the most erotic thing she had ever experienced, watching her physique transform into her long-held fantasy of being hugely developed, awesomely muscular, massive, powerful. It was beyond sexy. Jonnie could feel her arousal building as she watched her bulging muscles swell and continue to bulk up within the confines of her too-tight clothing as it miraculously held on for dear life, the seams beginning to vibrate with the strain even as her clothes were absolutely skin-tight from head to toe. Jonnie watched as veins began to pop out across her swelling muscles, swelling and throbbing with enough intensity to be clearly visible through the clothing.

And then suddenly, a seam burst along her massive left arm, the huge bicep and tricep overwhelming the sleeve's structural integrity with their sheer mass, followed by a seam on her right leg as her enormous quadriceps surged ever-bigger. Her collar popped and tore as her neck continued to thicken and her traps swelled bigger, and then she felt the top beginning to split along her widening back. Jonnie grinned broadly as she heard and felt the material tearing, and raised her arms up and hit a double-bicep pose, the mere act of raising her arms causing the seams along her lats to burst. Both sleeves immediately exploded into shreds as she bent her forearms inward and flexed her massive biceps, the swollen muscles easily over 26", a crazy size for even for the largest male bodybuilders. The muscles looked enormous on her smaller frame, bulging with mass and intense, throbbing veins steadily multiplying across the mounds of muscle exploding off of her upper arms. She orgasmed loudly as she watched her biceps flex with unbelievable intensity, her body wracked with pleasure, her muscles tightening involuntarily and instantly bulging outward from head to toe in all directions by an inch, further tearing her clothes. She lowered her massive arms and flared her swollen lats, watching with joy as her back surged wider and wider and completely tore her top apart, her bulging torso easily the width of a doorway. She raised up on her toes and flexed her immensely muscular legs, the erupting muscles ripping her leggings apart instantly with a sudden explosion of muscle.

Jonnie pulled the remaining tatters of her clothes from her massive, muscle-laden body and cast them aside, revealing her naked physique in all its glory. She tittered with delight as she tried to visually drink in as much as she could - she was HUGE, easily bigger than the largest Mister Olympia competitors, and incredibly defined. Jonnie had always liked bodybuilders with the pumped and contest-ready look, muscles bulging intensely, incredible striations and popping muscle fibers everywhere, and her body exceeded anything she had ever seen. Every inch of her massive body was awesomely shredded and covered in a network of swollen, prominent veins from head to toe - she looked like an anatomy chart blown up on steroids, and it was the sexiest thing she'd ever seen.

Jonnie reached her left hand over to her right bicep and felt the colossal muscle, feeling it ripple and twitch with the slightest movement, running her fingers over the bulging veins. Jonnie was absolutely over the moon - this was everything she had ever dreamed about, muscles huge enough to dwarf the largest men, pumped and bulging and harder than steel. She felt invincible, like a real-life superhero, a superior being among mortals. She twisted her torso for a massive side-chest flex and watched as her bulging pecs erupted from her chest, incredibly shredded and pumped with mass. She stuck out her left leg and flexed her enormous quads, the awesomely detailed muscles detonating with incredible thickness. She felt like she could do anything.

As Jonnie stood in front of the mirror striking pose after mind-blowing pose, every muscle surging bigger with each flex. After thoroughly blowing her own mind, she relaxed, practically panting with arousal again. And that was when she noticed something - while her muscles had swelled with her flexes as she milked them for more incredible size, they hadn't receded when she had relaxed. As she stared at herself in the mirror, eyes wide, she realized that her already massive muscles were continuing to grow, swell, throb, and expand all across her body. She was already bigger than the biggest male bodybuilders, easily the most muscular person on the planet and exceeding the limits of human potential, and yet her muscles were still pumping bigger, shredded muscle fibers multiplying, plump veins visibly throbbing as she grew inexorably bigger and more muscular.

She felt her legs thickening with even more powerful mass and begin to bulge against each other, forcing her to widen her stance as the swelling muscles of her quads steadily popped outward. Jonnie watched as her already incredible, bulging six-pack morphed into an unreal eight-pack, thick cue-ball sized muscles standing out from her abdomen. She felt her inflating lats begin to push at her massive arms, lifting them away from her enormous torso even as her deltoids continued pumping up with amazing mass and her doorway-busting back swelled wider, thicker, meatier, and her huge traps swelled higher, beginning to consume her neck as they mounded up near her ears. Her bloated pecs thickened dramatically, the notched chasm separating the massive slabs of muscle deepening as her chest bulked up further. Her massive arms continued to pump up, her forearms thickening with corded, veiny muscle and her biceps and triceps filling with more and more size. She was beginning to look like a freak, her massive body packed and stuffed with more muscle than any one human was ever meant to carry.

Unbelievably aroused, Jonnie lurched forward for the most incredible most-muscular flex in history, flexing her entire body as hard as she could. Every muscle on her body absolutely exploded outward in all directions with freakishly overdeveloped mass, her veins throbbing alarmingly with her pump and sending her arousal over the edge once more and prompting another intense, body-bloating orgasm. She felt her massive biceps pressing against her gigantic, bulging pecs as she brought her arms inward, and her traps surged upward higher than her ears. Her thickening legs forced her to shuffle her feet wider apart to accommodate them once again.

She stared at her enormous body as she relaxed her flex, panting with abject lust as she continued to watch pound after pound of superhuman, freaky muscle pile on her once-slender frame. Her jaw-dropping, unnaturally overdeveloped muscles continued to steadily pump bigger and bigger, and she began to feel her ballooning muscles filling the available space on her body and begin pressing against each other. She tried to look down to see her own body, only to feel her chin bump into her engorged, shredded pecs, not that she would have been able to see anything past them anyway due to their unreal thickness as they projected outward from her torso. She watched in the mirror as her bulging, sickeningly shredded abs pumped bigger and thicker, transforming into an utterly insane ten-pack of softball-sized bulged fighting for nonexistent space on her midsection. Her hulking quads erupted with more mass, the overdeveloped teardrop muscles swelling over her knees as her legs were forced even further apart.

Jonnie was completely blown away and utterly turned on by the increasingly huge state of her muscle-stuffed body. She looked like a mega-muscular freak, a muscle mutant, like a science experiment gone catastrophically wrong. And she absolutely loved it.

She tried to hit another most-muscular pose, only to feel her colossal muscles pushing against each other and literally preventing her from completing the flex! Jonnie looked like she could crush a car with her bare hands - had she been able to bring her arms inward, of course. She felt her unnaturally huge pecs beginning to push up against her chin with their freakish mass, her chin nestled in the deep chasm separating her mutant pecs. She watched in the mirror as her monstrous traps climbed ever-skyward, pushing up to the top of her head and then pushing even higher. She tried to bend her arms, only to feel her bloated, vein-popping, medicine ball sized biceps pressing against her abnormally thick forearms. Her hulking back and lats ballooned with even more unnatural mass, her bloated lats forcing her arms outward to a 60 degree angle even as her torso broadened to eclipse a double-doorway

Jonnie could feel her skin drawing tighter and tighter across every inch of her body as it continued to erupt with monstrous muscle, her shredded body becoming even more obscenely defined and her thick, bloated veins visibly throbbing across every inch of exposed flesh. She orgasmed a third time and every hulked-out, inhumanly huge muscle surged outward by 3 inches in an instant, every muscle fiber becoming alarmingly, catastrophically more ripped and causing her skin to audibly creak as it struggled to contain her obscenely overdeveloped muscles. She felt her pecs lift her chin as it was wedged tightly in the separation between her bloated pecs, preventing her from turning her head and forcing it up and back against her gigantic traps, pinning it in place. Her hyper-muscular arms were lifted away from her muscle-loaded torso even more as her lats ballooned, and her beyond-colossal biceps erupted even bigger and rounder, filling all of the available space on her arms and pressing her massive forearms back. She felt her lats and back becoming so overburdened with muscle that the psychotically over-the-top muscles bulged downward and came in contact with her hips and overdeveloped, shredded glutes. Her panic-inducing quads completely overshadowed her knees with their mutant, unstoppable mass, and her calves were erupting out on either sides of her shins by easily a foot and a half.

Jonnie felt the pressure in her body recede, and she could see and feel the growth come to a stop. And then it was over. Her eyes darted to every part of her overdeveloped body as she tried to drink it all in - she was a total muscle monster, absolutely engulfed from literally the top of her head down to her feet in the biggest, thickest, hardest, veiniest, most shredded muscle imaginable. She was easily more ultra-muscular than the Incredible Hulk, she looked like an entirely different species, the next stage in human evolution, she looked like she could make an enraged silverback gorilla flee in terror at the mere sight of her apocalyptically colossal, skin-bursting physique. She felt rigid with pure power, her straining skin unbelievably tight - the word "muscular" was woefully inadequate to even begin to describe the state of her supercharged body.

Jonnie thought back to the package and the little vial with its mystery liquid, her doubts and fears that it was a scam, that she'd gotten completely ripped off, that it wouldn't work.

Oh it had worked alright.

And it was worth every penny.

[Flexday]

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