Gympregnation Ch 02 Pt 01

Author's Note: Standard disclaimer applies: this story contains fictional depictions of erotic scenarios, so act accordingly! All characters are over eighteen, all situations are entirely fictional, and any resemblance to any real-life individuals or situations is entirely coincidental. Copyright Fidget, 2024. All rights reserved. Enjoy!

Gympregnation

by Fidget

Chapter 2, Part 1 of 3

It had been an eventful year. After the complete success of my prototype formula (as I could personally attest), I took the opportunity to retire from my ethics-constrained research position with no one the wiser, and began shopping my project around to various organizations of, shall we say, questionable legality. I took advantage of my newfound free time to refine and improve the formula while I looked for a patron/buyer.

In the meantime, of course, I was overjoyed when I missed my period and my trim midsection began to soften and swell. My forceful lover's semen had taken root where he had planted it deep inside my womb, just as I had known it would, and I quickly developed a cute little baby bump as my Darling Trainer's DNA grew inside me.

I frequently thought back to the wonderful day that it had all happened - how I'd inadvertently been ensnared by my own formula, brainwashing myself into his fertile little breedslut even as he became a well-hung stallion with an overpowering need to get his rocks off. How he'd recklessly rawdogged me from behind until he filled my pussy with his thick spunk, before immediately discarding me to go knock up a blonde gym bunny with big fake tits. It was the best day of my life, and I wouldn't change it for the world.

I was well aware that my feelings were being manipulated, of course - I knew exactly which compounds were affecting which receptors in my brain - but there was nothing I could do about my contradictory new existence. The fact that my brilliant mind was trapped in, and therefore constrained by, a young, fertile female body was still odious to me. I didn't find men (or women, for that matter) attractive in the slightest, and I hated the fact that my body had been programmed by nature to force me to bear the offspring of any dull-witted male who, slave to his sexual impulses, managed to somehow succeed in spilling his disgusting seed inside my traitorous vagina.

Except for the delicious stud who had impregnated me, of course, and therein lay the contradiction. The rewiring of my brain into becoming a breeder for my Darling Trainer was absolute and could not be undone (well, it could, but thanks to my formula I'd never have the willpower to actually do it), and as a result, whenever I thought about my DT, I couldn't help but love the fact that I was a soft, submissive, impregnable female who could be forced to carry my powerful lover's genes and bear his offspring.

In time, word about my project spread quickly through the appropriate channels, and I soon had a potential buyer lined up with the resources necessary to fund both my work and the lifestyle I wanted for myself and DT's progeny.

Before we finalized the deal, however, there was a ton of additional work to be done on my end. They wanted more data, better proof of the process and results (I lamented my lack of foresight in not acquiring the security footage from the gym), and some changes made to the formula. I spent the next six months or so implementing these changes and designing my next test, all while my young, fit, mid-20s body continued to swell with the seed of my anonymous lover.

The specific changes my buyers wanted mostly concerned transmissibility - they wanted the dosed male to not only be able to bring potential mates under his thrall, but to trigger the formula's effects in the other males around him as well, effectively subduing an entire population at once with a contagious reproductive orgy.

It took a few months of work, but it was easy enough to get the dosed male's sweat to trigger the same heightened mating drive and increased fertility in the males around him, while also modifying the secondary males' pheromones in the process to trigger the intended submission, fertility, and breeding desire in any nearby females.

Just for fun I made the females' condition contagious as well, causing their pheromones to trigger additional arousal, submission, and enhanced fertility in the women around them. I also added a compound that would trigger a desire for closeness and sisterhood, which should cause the affected females to cluster together so that their pheromones could spread more easily.

The hardest part of the entire process was dialing back the males' aggression to the point where they'd be more interested in fucking than in literally killing each other.

Eventually I was able to reach theoretical results that matched my buyers' expectations. My belly swelled larger and larger in the meantime, and I found myself experiencing an uncharacteristic, irrational emotionality from time to time as my gestating female body was wracked by hormonal mood swings. My breasts grew tender and swollen as my lactiferous ducts became engorged for the first time, and I soon found myself leaking the nutrient-dense fluid into my increasingly awkward-fitting lab clothing. I eagerly looking forward to finally fulfilling my obligation to my darling DT and delivering his bun ready-made from my evolutionary oven.

I was forced to take a few weeks off from work when the day finally came, but I returned to my project as soon as I had grown somewhat accustomed to the responsibilities of new motherhood and quickly began making progress once more.

Successfully delivering my lover's offspring hadn't altered my mental conditioning as his breeder in the slightest, of course, and now that I was empty I was soon overwhelmed with an exciting compulsion to find my DT again so that he could brutally fill me with his virile essence once more. I knew that my formula had long worn off, but with all I'd learned in my past few months of research, I was more than capable of

persuading

him once again.

Unfortunately, I had no idea who he was, and when I finally showed back up at the gym 9 months after our first encounter, empty and needy, he was nowhere to be found. His coworkers mentioned that he'd eloped with a hot blonde with big, fake tits (who started practically worshiping the ground he walked on after he'd knocked her up, apparently), and he hadn't left a forwarding address.

As his

other

brainwashed breedslut, I needed to worship him as well, of course, (or to embrace his semen-spewing phallus with my newly fertile pussy, at least), but I eventually had to give up and resign myself to being thankful that he had generously fucked his seed into my body the first time. Even so, I never gave up hope that one day I'd randomly run across my wonderful DT again so that he could continue filling me with his babies.

It was for this reason that, even though I had originally planned to make an antidote to my formula to inoculate myself against its effects, I was ultimately unable to. I obviously saw the value in such an antidote: while I couldn't help loving that I'd been brainwashed by my formula once, I had no desire to repeat the process with any male other than my perfect initial impregnator.

Unfortunately, the antidote would also release me from my programming as DT's submissive breedslut, and even though my rational mind knew that the chance of ever randomly running into DT again was effectively zero, the brainwashed side of me continued to insist that it was destiny and clung to the chance, no matter how small, that he might return and knock me up again. This meant, of course, that I'd never be able to bring myself to take the antidote, leaving me just as susceptible to my new and improved formula's effects as I had been the first time.

This time, however, I knew better, and I spent a full week designing my second experiment to ensure that I wouldn't need to be inside the building at all once my muscle-bound guinea pig had been dosed. I knew from personal experience just how eager my primitive female body was to succumb to my formula's promise of sex, and my mind was entirely too valuable to science to let myself be accidentally brainwashed into a lowly sperm incubator for a bunch of meat-headed jocks with room-temperature IQs. Aside from DT, of course. I'd incubate his sperm as many times as he'd let me.

Once my preparations and maternal duties were handled to my satisfaction, I packed up my car with my formula and the small amount of additional equipment I would need and drove the long hours to my gym of choice, on the outskirts of a small town in the middle of nowhere.

I walked inside, once again dressed in a simple sports bra and workout tights, though they were now a few sizes larger to accommodate the wider hips and heavy, lactating breasts my pregnancy had forced upon my body.

I made my way over to the front desk, and was happy to discover that all of the requirements of Plan A seemed to be present, making resorting to backups unnecessary. The man working the desk was clearly a trainer himself, with plenty of muscle for my new and improved formula to work on (though that shouldn't be necessary with the efficiency gains I'd made over the past few months). Even better, he was right in the middle of a protein shake, perfect for dosing with my new formula, and I could clearly see the security footage for the gym on the monitor in front of him.

He greeted me politely, and I put my plan into action. I needed him to leave the desk, so I made up a story about the rubberized coatings on dumbbells hurting my delicate, feminine hands, and asked to see one of theirs before I made my decision to join the gym. He seemed to think my concerns were somewhat ridiculous - which, of course, they were - but all it took was leaning over the counter, ostensibly to show him my hands, and allowing him to get a good, long look at the impressive cleavage my full, lactating breasts created to send him scurrying off to do my bidding.

At least these things are good for

something, I thought to myself, looking distastefully down at the ridiculously large, swollen mammaries that advertised my desirability as a breeding partner whether I wanted them to or not.

Good for something other than nursing DT's offspring, that is.

They were indispensable for that, of course, which made them more than worth it, but did they really have to be so

big

and heavy and obscenely visible?

Anyway, once the trainer was gone, I quickly dumped my formula into his cup and plugged a small USB stick into his computer so that I could capture their video feed safely from my car out in the parking lot, and then politely declined membership when the trainer returned. I hung around the entryway pretending to look at a flyer on the bulletin board long enough to see the man take a large gulp from his protein shake, and then I flipped the sign on the door to "Closed" and exited the building before my formula could begin to reprogram the man's body chemistry.

On my way out I activated a custom-made jammer that would disable all electronic communications inside the building other than the specific frequency used by my USB stick, and then I chained both the front and back doors of the building closed. This was for multiple reasons: it would keep all of my guinea pigs inside long enough to ensure that my formula drove all of their dumb, horny young bodies into a breeding frenzy, but it would also prevent anyone under my formula's influence from escaping into the town and spreading the effects. This was also why I had chosen such an isolated location for my experiment - even with the extreme transmissibility of my new formula, the town was far enough from any other major population centers to ensure that the effects would fade long before a breeding epidemic could sweep across the country and attract more unwanted attention than I was prepared to deal with.

I expected that this would be a mostly unnecessary precaution - it shouldn't take more than a few minutes for my formula to have enough of an effect that nobody would be interested in leaving until my experiment was done and all of the women were thoroughly bred anyway - but I had learned my lesson after last year's mishap, and made doubly sure that nothing could go wrong this time.

I retreated to my car, opened my laptop, and within seconds was watching a live feed of the building's interior. With the adjustments I'd made to my formula, it didn't take long for the situation to develop in the intended direction.

Well within the five minutes I'd expected it to take for Male Subject 1's bulky body to ramp up pheromone production and increase sperm motility and sex drive, a curvy brunette in her early thirties with a great ass found herself unexpectedly veering over toward his desk as she passed by. Within minutes of stopping to talk to him, the unwitting milf was tilting her head and playing with her hair as his altered pheromones drove her body to advertise her growing sexual arousal. I fondly recalled my own impulsive flirtations with DT, and I knew just how tempting it would be for the woman to stay put and let the trainer's addictive musk make her more and more receptive to his sexual advances.

From the way the trainer spread his legs to give his expanding cock more room as he began to leer at her full breasts and tapered waist, it was clear that he liked what he saw. Again I thought about how cute DT had looked as he had become more and more fixated on my own young feminine body the year before, and, as expected, it wasn't long before Male Subject 1 invited Female Subject 1 around the desk so their hormone-addled bodies could be closer to each other.

I watched as she sank onto his lap, doubtless enjoying the exciting feeling of his throbbing bulge pressed against her vulva as she straddled him, and then the two began making out with abandon, right in the middle of the gym's entryway. One of his hands quickly ventured up her trim torso to grope and paw at her breasts, while the other made its way down below the counter where I assumed it was cupping and squeezing her toned bubble butt. The curvy milf's hips were already moving, rocking her mound on his cock like her life depended on it as they locked lips and transferred even more pheromones to each other. I knew from personal experience that any minute now the woman would experience a rush of warm, intimate femininity as she ovulated and her body became dangerously fertile.

The foreplay quickly became more than the couple could handle as the effects of my formula on their helpless bodies continued to strengthen, and soon my male subject possessively grabbed the female subject with one arm around her trim waist and stood up, by this point fully intent on mating with her. I knew that his balls would be feeling almost painfully heavy with sperm by this point, and that his cock would be rock-hard and insistent, demanding the soft embrace of the nearest receptive female.

He forced her down over his desk, ripping open the thin material of her workout pants before holding her with one hand as he whipped his cock out of his shorts with the other, right there in the middle of the gym, and I saw his head tilt back and his eyes roll back into his head in sexual euphoria as he obeyed his urge to squeeze his sensitive cock deeply into his mate's tight, unprotected pussy. The soon-to-be-mother thrust her hips back against his as hard as she could in the midst of being forcefully held down and ravaged, and her ecstatic face on the monitor voicelessly screamed "Yes! Yes! Yes!" up toward my voyeuristic vantage point.

From there things developed much as I'd anticipated. Within seconds of them actively fucking, a crowd began to form around the desk, ensuring that at least a dozen more men and women would be affected by the cloud of pheromones that I knew would be growing thick around the couple in the exertions of their frantic mating.

I watched as a few of the other trainers stepped forward, grabbing the shoulder of their coworker and coating their hands in his potent, contagious sweat in the process, before being thrown off so that Male Subject 1 could continue holding Female Subject 1 facedown on the desk as he relentlessly drove himself toward orgasm inside her.

Watching her face alternate between twinges of pain and blank stares of blissful, mindless pleasure, I remembered how good it had felt to be held down just like that by my beloved DT at the height of my own submissive urges, and my empty, recovering pussy tingled in jealous sympathy as the brunette's body instinctively urged her partner to lose control and inseminate her.

The other trainers retreated after being so forcefully rebuffed, clearly unsure of what to do in the face of such a ridiculous situation. All the while, however, unbeknownst to them but knownst to me, their bodies began involuntarily ramping up their own sex drives as well, preparing to spread the copious amounts of thick seed that was slowly but inevitably beginning to build up inside their own heavy balls.

I watched closely as my experiment proceeded to its next phase: the two trainers who had grabbed their friend - and thereby received a much stronger dose of his catalyzing pheromones - soon began to pay an increasing amount of attention to the attractive gym bunnies beside them instead of the pornographic scene in front of them. I couldn't tell from the video, but I knew that their phalluses would already be painfully hard in their tight gym shorts as well, and that the physical sensation would be filling their minds with a cloud of unexpectedly powerful arousal as they ogled the appealing feminine bodies around them. The unwelcome urge to act on those desires would be getting stronger by the second.

As soon as I saw the nearby females start looking up at the newly dosed trainers in unabashed admiration, cocking their hips and playing with their hair, I knew that my experiment was a success. Within fifteen minutes every woman in the gym would be pregnant, and in another three hours they'd each be a brainwashed breedslut to every hypertrophied meathead in the building. I smiled to myself in silent superiority, knowing that none of them could hold a candle to my DT.

Just at that moment the antics of the couple on the desk became more animated as the brunette milf's stimulating pussy did its job and brought her bull's sensitive cock right up to the edge. The woman meekly lifted her hips, angling her tight canal for maximum penetration on what she knew would be the final thrust as she looked back over her shoulder, and I remembered how I had felt in that exact moment, like my wonderful man was about to make everything right with the world. Which was ridiculous on her part, of course, as I'd designed those feelings specifically so that she'd allow herself to be impregnated.

Either way, the inevitable happened. Her virile stud slammed fully into her, his eyes rolling back into his head in debilitating, artificially enhanced pleasure as he lost control and his cock began to erupt. The brunette gripped the edge of the desk so tightly that I could almost see her knuckles going white, and her hips made small, regular gyrations against his thighs as his balls reflexively pumped her womb full of his thick ejaculate.

Now that his cum was inside her, of course, I knew all too well what came next. Her hands slowly relaxed their grip as his orgasm continued, and I could almost feel the irresistible mental locks that were currently clamping around her mind, permanently brainwashing her into becoming her bull's breedslut, making her crave feeling her belly swelling with his seed. I could still feel those wonderful clamps locked tightly around my own mind as well, ensuring that I stayed nice and submissive and breedable for when my virile DT finally found me again.