The Serum

[Amnoartist]

The Serum

Commissioned by Darkcushy

Written by Amnoartist


"Well? Is it done?"


"Test complete."


Jealousy and desire. Bianca Morris learned those two did wonders for one's will to invent. Despite her impressive intelligence garnering the attention of scientific institutes across the globe, she yet viewed herself as the black sheep of what was closest to her: family. Bianca's parents weren't perfect by any means, nor was her sister Darcy, but the budding scientist didn't quite see it that way. Bianca saw her sibling as a goddess in comparison to herself. Why?


Darcy was hotter. Looks weren't everything in what made a person who they were, Bianca knew that, but she couldn't accept it. It was like a constant itch that couldn't be scratched, an age-old question that had no logical answer. If her mind was so great, why wasn't her body, too? Bianca's face was beautiful enough for it to get a few passing glances every so often, but everything else was disastrously boring and flat. At 4'8, she was even the shortest member of the Morris family, with the flattest tits and ass imaginable, so getting those few glances at her beautiful face didn't mean much in the end.


Bianca's parents did what they could to convince her that looks didn't matter, but it was like talking to a brick wall. Her mother's breasts weren't huge like those image-obsessed women seen on TV, but even then they were still perkier compared to Bianca's. No matter where she went, Bianca was constantly reminded of her shortcomings.


And thus, this was the driving force behind her latest project, her magnum opus. It had no name, for one wasn't needed. All that mattered was that it worked. Years of research huddled away in her lab and becoming a recluse had all led to this moment. This was her time.


"Examinations indicate this serum will have a success rate of ninety-nine percent."


Bianca smiled. She knew she could count on Switch, a self-aware android assistant she built during her years of seclusion, for valuable feedback and data — and the much-needed benefit of friendship. That said, Bianca would've preferred the serum's success rate to be fully one hundred percent. That single percentile was going to itch at the back of her mind if she didn't—


"No. Not good enough. It should be one hundred percent. It has to be." Bianca knew she had come this far not to ensure perfection now. Not when she was this close to getting what she wanted after so long. "Run the test again."


"Ill-advised, Based on historical data, running a second test will yield similar, if not identical results. Perfection is impossible."


That said, sometimes Bianca wondered if she made Switch too smart, to the point where they butted heads. Even if the AI was right. It especially stung Bianca considering the idea of perfection being unachievable was one of the first lessons she taught Switch.


"Fine. Give it here."


Switch reached for the vial, the purple liquid gently rolling like a wave as it was moved from the workstation and into the hand of her creator. Bianca looked at the serum for a moment, appreciating the fact she'd accomplished her goal, her life's work. Any new projects would pale in comparison.


"Your heart rate appears to have elevated beyond normal parameters. Are you in need of medical assistance?" Switch's inquiry was met with a scoff from the scientist. Bianca appreciated her assistant's concern, even if it was misplaced. The pace of Bianca's heart rate was born from excitement.


"I'll be fine."


Switch watched as Bianca chugged the vial's contents in a single gulp. The woman moaned slightly as the ice-cold liquid passed down her throat to rest within her stomach. It had a lemony aftertaste which was quite nice. Bianca knew not to be so reckless with her decisions, often sitting on them for weeks before choosing. But this particular decision needn't warrant that. Her desire to be bigger and better had turned to desperation, puppeting her in ways she was oblivious to.


Of course, as the wall-mounted clock encompassed a full minute, Bianca started worrying. There were no positive effects to marvel about; a firmer ass wasn't there to grope or larger tits to squeeze. There weren't even any negative effects to complain about.


"What the fuck!"


"Frustration detected. Would you like some chamomile tea to—"


"No! I don't want fucking chamomile tea!" With her frustration overbearing, Bianca's fist came crashing down on the worktop. The whole thing was a disaster. Years of work, of relationships being torn apart — for nothing. Nothing, a placebo. "I want bigger tits and a round ass! Is that too much to ask?"


Switch usually responded quickly to respond to Bianca's every comment, but was oddly quiet this time around. The one time Bianca could use a friend's voice, it wasn't to be heard. Instead, the android stood stiffly, seemingly scanning the worktop.


"I detect damage on the worktop. Would you like it repaired immediately?"


"No, I don't want— wait, what?" Bianca wasn't sure if Switch needed a fresh OS install again, reminded of the previous incident with her old cat Murphy. Damage on the worktop? What? That was when she noticed the deep dent imprinted on the table's surface, its legs cracked and split as well. It was as though it had been struck hard with a hammer!


Bianca's attention then shifted to her arm, at which point her heart rate practically skyrocketed when noticing the twitching muscle fibres in her forearm push themselves to grow, moving like burrowing worms.


"Holy FUCK!"


"There appears to be a marked increase in your body mass, Miss Morris." Switch moved closer to the scientist, her eye blinking as she began conducting in-depth scans of her creator. "I shall conduct a series of scans to determine the extent of your transformation."


"No, wait! Not yet. I'm just getting started, I can feel it." Bianca flexed the arm used to punch the worktop, and with that simple motion, the limb doubled in mass. A series of veins varying in thickness birthed to cover the powerful limb from peak to elbow, but then kept going, twisting behind her shoulders.


Switch did as ordered, standing stiffly to simply watch her creator's growth, of which there appeared to be plenty from such a small vial. It soon became clear to the android servant Bianca was growing in more areas than originally anticipated.


"Scans indicate your height has increased by four inches in the last twenty seconds. A deeper analysis—"


"Switch! I told you, don't inform me yet!"


"As you wish."


A slight tremor built up within Bianca as her muscles continued swelling, wincing at the sensation of the muscle fibres within her legs grinding and rubbing together as they fought for space, beginning to tear through her trousers and spill out. Her head level with Switch's, she could see her perspective shift as her height increased further still.


"Actually, what are my stats at right now? Tell me; I need to know!"


"Your height reads at 5'8, confirming a solid foot increase in—"


"No! Mass! Tell me how much mass I've gained!" A layer of frenzied excitement coated Bianca's voice as she called out, as though she was not only eager to know the results but lived to know them. The need to know was what drove her, running a gentle hand over the bulging peak of her right bicep as it throbbed with renewed power.


"Scans confirm a solid one-hundred-pound increase in body mass. Extensive diagnostics appear to show zero body fat with further growth anticipated."


Bianca moaned like a whore at that revelation. She'd never felt so much power before and she was to get more? How much of it? She needed to know! Or maybe not knowing was better, half the thrill. The fibrous muscles burned and twitched in their continued expansion, pulling at her skin slightly to make space for more. More. More. Bianca pulled her right leg out in front of the android servant. "Touch it."


"Please elaborate," was Switch's response, as if confused by her burgeoning creator's request. Bianca didn't immediately respond, too busy moaning as her flesh shifted to maintain space for its enlargement, thus leaving the android aimless. It went back to its previous goal of scanning as if curious to know more. "Heart rate elevation indicates feelings comparable with arousal."


"My leg! Touch it! Tell me how hard it feels, how big it looks." Bianca's frustration with her android creation was fleeting and quickly swapped for an obsessive curiosity about her changes. It wasn't enough to want to know, but she needed to, as though not would curse her, give her bad luck. She watched as Switch moved to kneel in front of Bianca, her audio-sensory hardware picking up the rabid squelching of her quads as they grew only larger. The human then winced as she felt Switch's cold metallic limb grab her leg as commanded.


"Well?" Bianca queried urgently, clearly trying not to moan like a whore again. The android was silent for a moment, which didn't alleviate the scientist's need for an answer or her inner feelings on how to react. As she watched the metallic brain-child knead her powerful flesh, Bianca's pussy twitched with an eagerness unfelt since ever.


"Your muscles appear to be stronger than predicted." Did— did Switch just say Bianca was stronger than she was supposed to be? The serum working at all was exciting enough, but to know the results shot past the duo's original predictions was— orgasmic. Bianca watched the android continue feeling her leg almost worshipfully, angling it slightly so the focus was turned to her calf. Switch seemed to marvel at the squirming flesh before speaking further. "Intensive scanning reveals your muscles are denser than steel."


As Bianca took a moment to appreciate her robotic servant's worship-like touches, the android itself seemed pulled by curiosity into uncovering more about her creator's transformation. Its visual hardware pulsed with a red light as it scanned deeper. After a moment, Switch could see deep into Bianca's muscle fibres, watching them twist, pull and contort to grow almost constantly.


"Your muscle fibres are rebuilding themselves stronger than humanly possible. An individual fibre holds more strength than that of the average human."


At that point, what remained of Bianca's clothing as it battled futilely to keep her modest was blown apart like confetti, rendering the woman naked. Even then, her muscles twitched excitedly for a moment before subsiding.


"Your growth has stopped. Final stats read at 6'3 with an excess of two hundred pounds. No body fat detected."


Did it stop? Bianca had wished for more — so much more — but she couldn't be fussy about what was given to her, having changed so much already. She could feel her renewed strength course through her system without having to test it, knowing she was stronger than everyone could ever hope to be. She fondled her erect nipple for a few moments before returning to her senses. A gasp. As powerful and confident as she had become, Bianca always did appreciate modesty.


"Switch, get me something to wear, will you? The APS ought to do."


The Advanced Polymer Suit, patented by Bianca, was designed in tandem with the serum as a complementary side project, the intention behind which was to construct an outfit purposefully for those with large bodies. The synthetic polymers would adapt to the wearer's physique even if they became larger.


Switch observed her maker as she slipped the Advanced Polymer Suit onto her engorged frame, the leathery fabric squeaking as it expanded to fit. The robot stepped back to scan the resultant appearance of a scientist-turned-bodybuilder checking herself out, running a hand over her firm glute muscles. The suit seemed to be doing its job well enough.


"The suit appears to be holding."


Bianca couldn't resist showing off then. Between girlish laughs of excitement she flexed every muscle all at once — biceps, quads, abs calves — exploding them to their full sizes. With that, the suit was triggered to expand further, the leathery material creaking as it submitted to the woman's enlarged proportions.


"Oh god, yes! Uhhhhhh!"


As Bianca moved between various bodybuilding poses in celebration of her successes, Switch watched stiffly. The android's eye blinked its piercing red as more scans were made before results flashed on its advanced HUD. Bianca's height had climbed higher at some point during her impromptu posing, now holding at a ceiling of seven feet. Her mass had increased too, adding over twenty-five pounds of mass in just a few short seconds.


"Scans indicate further growth is anticipated, going further beyond our initial projections. Tenfold." The robot watched Bianca feverishly explore her biceps, groping them perversely as though coveted, the layer of veins decorating the limb unlike any other seen before; thick like sausages and full of twitching life. She could feel it — all the power she had — and wanted more. So much more. Though Switch was the one to retain a level head. "Perhaps caution is advised?"


"Bullshit!" Bianca didn't come this far — didn't change this much — to care for warning now. Perhaps the Bianca of just a few moments ago would heed the AI's warning, but this Bianca didn't. All that was needed now was more mass, more power. Now just more. All of it! As much as she could take, then keep going, caring not for the results that might shock even the loyal android.


As Bianca's next flex came, an explosion of mass followed, adding inches of meat almost instantly to her already-hulking frame. The APS squeaked as it shifted to reshape itself around the larger bicep before rearranging at her leg as it grew too, seemingly without warning. A moan of pleasure escaped the woman's lips as she ran a hand over her abdominals, feeling the blocky muscles roll and shift in their attempt to build themselves under the suit. As that happened, her opposing bicep started growing as well.


"Your body appears to be growing at will." If a normal person were to say something like that, no doubt they would panic, but Switch's tone was merely informative. The AI simply stood in front of the swelling scientist like someone out of place, aimless — not quite observing, just there. "My estimations put your mass at six hundred pounds before the minute closes."


The APS creaked as Bianca's calves exploded violently with mass, adding a whole head's worth of meat onto them in a single second, then doing so again almost instantly. The pleasure that followed was almost crippling, better than any sex she ever had in her life. Intercourse was nothing compared to the throes of growth.


"Oh baby, yeah!"


"Further assessment proposes you'll double that weight within the next two minutes, with an approximate weight of one thousand pounds." Switch's informative data dumping appeared to be driven by curiosity at this point, the android's eye flashing as the information appeared in front of it at a near-constant rate to the point where its processor was beginning to lag. Switch was receiving new data to work with as quickly as Bianca was growing. "With no signs of stopping. Ever."


Hearing that did the trick for Bianca. It was one thing to get as big as she dreamed, but constant growth? What did she do to be so lucky? As the next fated moan of crippling pleasure came, so too did Bianca's love juice, trickling down the APS' leg. With the newly-imparted knowledge, it begged the question of how much pressure, how much mass — how much Bianca — could the suit take? Would it stand the test and keep building itself to house Bianca even if — no, when she transformed into a sixteen hundred pound ball of muscle that only enlarged still? Or would it fail?


As Bianca's back mushroomed to triple in size, her traps now growing well above her head, the APS stretched to reach out and fill in the new space. It struggled for a moment trying to find the best angle for the meatiest woman alive, but it eventually did its job. The scientist's height had climbed still, now forced to angle her head and look down at Switch.


"MORE! MORE! I WANT MORE!"


"That much is clear," the android quipped.


The AI scanned once again. Bianca's heart rate was going faster than humanly possible. It would've burst already if it wasn't apparent she wasn't even remotely human anymore, but a bipedal mass of constantly growing muscle. That wasn't as far as she was willing to go at first, but as more mass was gained, even more, felt needed. She lived for growth now. She was growth incarnate.


Bianca's insides churned violently as they struggled to keep up with the rest of her growing self, her muscles contesting against one another. As her biceps ballooned, her quads exploded even larger in a perverse battle to come out on top, only to be beaten by her calves now six feet wide— no twelve, eighteen! It just wasn't stopping.


And Bianca loved that.


"Your respiratory system appears to be failing", Switch noted but was bluntly ignored by even more growth. The next wave of which was so loud that it completely overwhelmed the android's audio-sensory hardware, rendering it deaf. Thus, no more commands were heard or could be enacted, even as Bianca's weight skyrocketed to somewhere over three thousand pounds.


Bianca had grown so large now that her frame was bent out of any kind of human shape, starting to take on a more circular, ball-like form than anything. Even then, she kept expanding, kept wanting, needing more. Her traps and chest were beginning to fold under and crush her comparatively tiny head. Even the APS couldn't keep up, where it had struggled previously had now completely changed to a futile effort as the leathery fabric started pulling into fractious tears and rips, exposing the nakedness that was the ball of muscle Bianca had mutated into. Stretched as it barely managed to house the mountainous muscles that knew nothing but growth, her skin started turning purple-black from the burst blood vessels that couldn't keep up with the constant mounting pressure.


"Mooooorreee!" she blurted out with strain as the pressure on her head built, her skin now beginning to peel and expose the misshapen insides.


And—

[Amnoartist]

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[Sounder9-]

An interesting take on the genre. Definitely a 'be careful what you wish for' kind of story.