Chapter 1: Studying Tania

Here is the true account of how I discovered the ‘horny drug’ tx34 while researching the effects of hormones on brain function, and why it changed my life - and even human evolution.

At the time, I was a Ph.D. student at one of the UK’s most prestigious neuroscience labs. My work involved taking brain scans of female volunteers as they performed various tasks, and then meticulously correlating the scans with their menstrual cycle patterns.

It was routine research in many respects, the kind that relied on data from hundreds of female subjects to find statistical significance. But the process was anything but mundane to me.

I was a few years shy of thirty, fit and trim from regular exercise, though I carried the unmistakable air of a bookish academic. Beneath that polished exterior, my libido raged like an untamed beast. Day in and day out, I was surrounded by these young, often stunningly attractive female volunteers. The close proximity, their natural allure, it was a relentless tease.

To be honest, I’d been hooked on sex ever since I hit puberty. My first time was a wild threesome with two French tourists, a sweaty, unforgettable mess that left me craving more. From that moment on, I was addicted to pussy. Most of the time, this meant watching porn and jerking off until my cock was sore, but I’d also racked up a respectable number of real fucks with hotties over the years.

One of the wildest was with a girl named Mia when I was nineteen. We’d met at a bonfire on the beach, and she had this incredible, carefree energy that matched her body - long legs that never seemed to end, tits that spilled over the top of her bikini, and an ass so round it seemed to defy gravity. We snuck away to her family’s summer house, where things got hot fast. She was on her knees in seconds, her lips sliding down my cock while her eyes stayed locked on mine. I could barely handle the sight of her, the heat of her mouth, the way she moaned every time I thrust deeper.

Then her younger sisters walked in. One was maybe a year younger than Mia, with the same blonde hair and tight body, her perky tits pushing against a cropped top. The other couldn’t have been more than a couple of years younger, but her innocent look was a complete contrast to the way she bit her lip, her gaze traveling down my body like she couldn’t wait to join in. Mia laughed and pulled me closer, whispering, “They always want what I’ve got.”

Before I could process what was happening, they were on me too. One straddled my lap, grinding against my cock as her lips claimed mine, while the other pressed against my back, her hands sliding down my chest, teasing, exploring. Mia dropped to her knees again, sharing me with her sisters as they took turns sucking me, their tongues swirling, their moans vibrating through my whole body.

By the time I had Mia bent over the bed, her youngest sister was beneath me, her legs spread as I thrust into her, making her gasp and claw at my back. When she couldn’t take anymore, I turned to the middle sister, her body trembling with anticipation as she climbed onto my lap, guiding me into her dripping cunt. We went for hours, rotating from one to the next, their bodies slick with sweat, their voices hoarse from moaning my name.

The sun was just starting to rise when we finally collapsed, a tangled heap of exhausted, satisfied bodies. They were giggling softly, their fingers tracing over my chest and occasionally down to my cock, which they couldn’t seem to stop admiring. It was the kind of cock girls loved, large enough to satisfy, thick, with veins that added a rough, masculine texture, but not so massive it frightened them. They teased me about whether I’d last as long the next night, their laughter punctuated by soft touches and lingering glances that made it clear they’d be ready for more.

But enough about my wild youth. For the past few years, I had a steady partner, my gorgeous girlfriend Susan. She had a bubbly, upbeat personality paired with a body that turned heads everywhere she went. Her curves were a masterpiece, sculpted by regular exercise that kept her firm in all the right places. Susan had tits so huge and perfect they could make any man weak at the knees, and an ass so tight and toned it practically defied gravity. She wasn’t just sexy; she was the whole package, kind, supportive, loyal, the kind of girl you hold onto for dear life.

Sex with Susan was fantastic, the kind of long, passionate sessions most guys dream of, but there was a catch. She wasn’t particularly interested in sex more than a couple of times a week, if that. While I adored her, my libido didn’t exactly match her schedule. It wasn’t uncommon for me to spend my nights jerking off to porn on my computer or fantasizing about the sexy young women who volunteered for my research.

One night at a party, after a few drinks, Susan leaned in close and gestured toward a group of drunk girls making out with random guys. With a playful smirk, she whispered, “Why don’t you screw one of these tramps to satisfy your excessive sexual needs? Just don’t let me ever hear about it.”

She giggled, but her tone carried a hint of seriousness. It was her way of giving me permission, do what you need to do, just don’t make it my problem. Despite that green light, I hadn’t taken her up on the offer too often. Sure, there were a few times I’d hooked up with girls in my dorm when the opportunity presented itself, but those chances were rare. Between my research and Susan living so close by, opportunities to cheat were hard to come by. Seduction wasn’t as simple as just walking up to a girl and asking for sex. Most of the time, my only interactions with women were through my research, and those girls were strictly off-limits, or so I thought. The subjects in my study were all adults, over 18, as required for ethical approval and consent in any legitimate research project. Still, their youth and beauty often left me wrestling with my own urges. More than once, after an especially sexy subject left the lab, I found myself locking the door and squeezing one out, the vivid images of her curves and the way she moved burned into my mind.

On a few occasions, the desire became so overpowering that I couldn’t even wait until I was alone. While their heads were locked inside the brain scanner and they couldn’t see a thing, I quietly unzipped, my hand gripping myself as I gave in to the unbearable tension, barely containing my gasps as relief coursed through me. Each session left my body aching, my pulse racing with a need I couldn’t fully control.

One day, a stunning young woman named Tania came into my lab. She was a teen, barely past eighteen, and radiated a natural beauty that made it impossible not to notice her. Her head was soon inside the large magnetic resonance imaging (MRI) scanner.

The scanner itself was an imposing piece of equipment, a massive magnet roughly the size of a car, with a tight chamber in the center just big enough to fit a person. For a brain scan, the subject lay flat on a table, positioned on their back, and the table slid into the magnet until their head was in the middle. The rest of their body, from the neckline down, remained outside the scanner. This positioning left their breasts fully exposed.

My prototype scanner wasn’t just precise; it was revolutionary. It had the ability to capture brain activity in millisecond time resolution, allowing me to record not just which areas of the brain were active but also the sequence of their activation. This made it possible to establish a clear chain of cause and effect, identifying which neurons initiated activity and which were merely responding. This level of detail gave my research an unprecedented depth and set the stage for the discovery of tx34.

The moment Tania entered the room, I felt my cock stirring, a familiar ache building as I caught glimpses of the 18-year-old’s flawless body. By the time she was on the table, her chest rising and falling softly as she relaxed, my dick was already throbbing with need. Tania’s perfectly shaped tits were enticingly visible through the thin fabric of her top, her stiff nipples poking through in a way that made it impossible to look away.

I struggled to control myself, but the more I stared at Tania’s body, the harder it became to resist. Her head was buried deep inside the scanner, completely out of sight, giving me the freedom to take in every curve. I couldn’t stop imagining her naked, her smooth skin and perky tits exposed just for me. As always, I aimed two webcams mounted on my lab computers at the gorgeous girl lying on the table and began recording.

The ache in my cock was unbearable. With her head locked inside the scanner and completely unaware, I unzipped my pants, freeing my painfully hard dick. My hand wrapped around the thick shaft as my eyes remained glued to her chest. I began stroking slowly, matching the soft rhythm of her breathing, watching her tits rise and fall with each inhale. The thrill of doing this right there, inches away from her, sent a rush through my body. I bit my lip to suppress a moan, my hand picking up speed as my gaze devoured her every detail.

I knew she was ovulating today thanks to the armbands the subjects wore as part of the study. Correlating brain activity patterns with menstrual cycles required precise hormonal data. The fact that I knew exactly when she was fertile made it feel even kinkier. The thought of her eggs ready to be inseminated only heightened my arousal.

Her braless tits strained against the thin fabric of her tank top, the hard nipples protruding provocatively. The sheer material left almost nothing to the imagination, and I swore I could make out the dark circles of her areolas beneath. They were perfect, puffy, and innocent, yet maddeningly seductive.

As I moved around the lab, lost in my fantasies, Tania continued completing the tasks displayed on the VR goggles she wore. Glancing down the length of the table, my breath caught when I noticed her skirt had ridden up. She wore nothing but a tiny thong underneath, and the thin strip of fabric barely covered her glistening, wet pussy.

Looking closer, I realized the thong’s string had been pushed to the side, leaving her slit completely exposed. My cock was already in my hand, throbbing as I stroked it, the sight making my grip tighten instinctively. Had she done this on purpose? Did she know she’d be lying here helpless, her head buried in the MRI, completely at my mercy? The thought sent a surge of heat through me, my hand moving faster as my eyes stayed glued to her glistening, teen pussy.

She was there, helplessly displayed in front of me. The idea of sliding my hard shaft into her exposed pussy crossed my mind, the fantasy intoxicating and impossible to resist. After all, we strapped the subjects to the table for their safety, their hands secured to the armrests to prevent them from hurting themselves during VR sessions. She wouldn’t be able to stop me. My mind swirled as I continued stroking, my arousal building to a fever pitch.

I had probably been staring at her for far too long when she suddenly spread her skinny legs wider and began to seductively gyrate her hips. My breath hitched, my strokes faltering for a moment. She was teasing me, I was sure of it. Her movements were too deliberate, too provocative. It was clear she enjoyed exposing her young treasures in front of me, playing with my mind as if daring me to do something about it.

Had she guessed that I would be staring at her private parts while she was locked in the scanner? It wouldn’t have taken a genius to anticipate that any guy would check out her hot young body when given the chance. My cock throbbed harder in my hand, my brain overridden by lust as I feverishly jerked myself off.

I moved closer, my face nearly brushing her pussy, inhaling the faint, musky scent of her arousal. It drove me wild, my strokes growing desperate as I hovered inches away, taking in the seductive details of her thin labial lips, the pink flesh of her vagina behind them, and her engorged clit poking through the folds. God, I wanted to take that little nub in my mouth!

My face got as close to her pussy as possible, almost touching it with my nose. Much too close, as it turned out, because a sudden movement of her legs caught me off guard. I jerked back just in time, but not before her soft, bare thigh brushed against my hair.

I froze instantly, my heart pounding as panic set in. Had she caught me? Was she about to scream? My mind raced, scrambling for some plausible explanation as to why my face had been between her legs. Then I noticed something: her hips were moving. Not just shifting slightly, but rocking up and down in a deliberate, rhythmic motion, as if she were fucking the air, her movements unmistakably filled with desire.

It took a moment for the realization to sink in. This wasn’t an accident, and it wasn’t just random movement. She was inviting me. There could be no mistake: she wanted sex! My wildest fantasies were unfolding right in front of me.

Unable to resist any longer, I pushed her thong aside, the slick fabric sliding effortlessly away to reveal her wet, glistening pussy. My cock, thick and rock-hard, twitched in anticipation as I guided the swollen head toward her entrance. Her lips parted slightly as I pressed against her, the soft, pink flesh yielding to the pressure of my shaft.

Her body was strapped firmly to the table, her arms secured to the armrests and her head locked inside the scanner, leaving her completely at my mercy. Despite her restraints, she spread her legs further apart, her movements limited but deliberate, offering me better access. The sight drove me wild as I leaned in closer, pressing the head of my cock against her opening.

I moved slowly, savoring every inch as her tight pussy stretched to accommodate me, the heat and wetness wrapping around me like a sheath. The sensation was electric, her snug walls yielding reluctantly to the thick girth of my shaft. With each push, her body adjusted, opening just enough to let me in, the resistance making every movement almost unbearably intense.

As I eased deeper, I could feel the subtle stretch of her inner muscles, her tightness gripping me in a way that sent waves of pleasure through my entire body. Her hips shifted slightly within the confines of the straps, the only motion she could manage, and it was enough to spur me on. I pressed further, her body giving way as I buried myself inch by inch, the head of my cock pushing against places that had never been reached before.

Finally, I was fully inside her, her youthful body stretched perfectly around my shaft. I paused for a moment, savoring the sensation of her tight warmth enveloping me completely, her snug, wet walls gripping every inch of me. Her pussy was so impossibly tight, I could feel every pulse of her body against my cock, her heat searing into me as I held myself still, savoring the overwhelming pleasure.

A sudden tremor ran through her restrained body, a subtle but unmistakable shiver that sent a thrill racing through me. Was she already cumming? It seemed impossible, but the faint quiver of her muscles and the soft, muffled moan that escaped her lips made it clear she was. The thought that she might be so aroused, perhaps fantasizing about me pleasuring myself to her exposed form, sent a surge of primal desire through me.

Unable to hold back any longer, I slammed into her hard, the force shaking the table she was strapped to. The sound of my hips meeting her restrained body echoed through the lab as I began thrusting with a relentless rhythm, each deep stroke pushing me further into her trembling pussy. Her cries of pleasure spilled from the scanner tube surrounding her head, growing louder with every thrust, her voice a mix of ecstasy and desperation.

For ten long minutes, I fucked her furiously, each movement sending the table rattling against the floor as I pounded into her relentlessly. Her screams of ecstasy came in waves, her body trembling with aftershocks as I drove her to the brink again and again.

Midway through, her entire body tightened suddenly, her inner walls clamping down on my cock with a force that made me gasp. She let out a muffled scream of pure ecstasy from the tube, her pussy convulsing around me as wave after wave of her orgasm ripped through her restrained form. Her juices coated my cock, the slick heat making every thrust even more intoxicating. The sheer intensity of her release only fueled my desire further, driving me to thrust harder and faster as I felt her body surrender completely to the pleasure.

Finally, the tension in my body reached its peak. With a raw, animalistic groan, I drove myself as deep as possible, my cock twitching as I released a massive load into her. The warmth of my cum filling her young, stretched body sent one final shudder through her, her voice rising in a crescendo of ecstasy as I emptied myself inside her. I stayed buried within her for a moment, savoring the sensation of our bodies connected so intimately, before pulling out slowly, leaving her dripping and spent on the table.

She was still gyrating her hips, moaning loudly, and begging to be fucked again. This slut was absolutely insatiable.

Trying to buy time, I pushed her top up over her wonderfully youthful and perky, cone-shaped tits. Tania’s nipples stood on a prominent, firm mound beneath the areolas, giving her tits the youthful appearance of younger, budding teens that sometimes persists into adulthood. Well, at eighteen, she could still be budding if she was a late bloomer, right? In any case, this delicious firmness beneath her areolas contrasted with the softer tissue of her breasts and highlighted their youthful, perky, cone shape.

Wow, her puffy nipples stood out so beautifully, rock-hard and undeniably enticing, I couldn’t believe my eyes. My hands moved eagerly over her great tits, kneading their soft curves, but my focus was drawn to the stiff, prominent mounds beneath her areolas. They were so firm, so perfectly shaped, that I couldn’t resist pinching and pressing them, feeling the delicious contrast between their stiffness and the softer flesh around them.

Leaning down, I opened my mouth wide and drew one entire mound into my mouth, filling it completely with that firm, irresistible shape. My tongue swirled around her puffy nipple, teasing and flicking it, while my lips closed tightly over the mound, sucking it deeply. The sensation was incredible, the firm resistance against my tongue and lips reminding me of my earliest sexual experiences, back when I was nineteen and hooked up with girls just as young and firm as her. Those memories flooded back, intensifying my pleasure as I shifted to the other mound, savoring every second of her youthful perfection.

At the same time, one hand found its way to her clit, rubbing it in slow, deliberate circles, causing her body to squirm within the restraints. She was completely helpless, stretched out and exposed before me, her wrists and waist securely strapped to the table with heavy Velcro straps. Watching her youthful, teen body in a highly aroused state, trembling on the verge of release, was an intoxicating spectacle.

A stream of cum ran down her ass crack, glistening as it trailed between her cheeks. I scooped some onto my fingers and applied it to her clit, her moan resonating through the lab as my sticky fingers stroked the sensitive nub nestled against the smooth folds of her pussy. I collected more, smearing it over her erect nipples, which gleamed under the dim light. Then I leaned closer, blowing cool air over the cum-slick tips, watching as they hardened further under the sensation. She trembled visibly, her body quivering with excitement as my breath teased her clit, amplifying her arousal.

As she neared the point of no return, her entire body tensed, bucking violently against her restraints. Her legs trembled and shook, her hips rocking so wildly it was difficult to keep my fingers on her clit. I relished every second, the sight of her body writhing in pure ecstasy heightening my own arousal.

I continued to explore and tease her body, my hands and mouth working in sync to draw out every ounce of pleasure. Her restrained body writhed beneath me, her moans growing louder and more desperate with each passing moment. Finally, she let out a cry, her voice raw with need, “God, just get inside me already! I need you to fuck me - now!”

How could I resist? I positioned myself between her legs, guiding my rock-hard cock to her slippery entrance. The heat and wetness of her pussy enveloped the tip as I pressed forward, her tight walls parting reluctantly around my thickness. As I pushed deeper, I was mesmerized by the way my cock stretched her pussy obscenely, her body yielding inch by inch to accommodate me.

With every thrust, I could see the outline of my thick shaft pressing against her lower belly, reaching beyond her belly button. The sight of her stretched so fully was intoxicating, a visual and physical reminder of how deeply I filled her. She gasped sharply as I slid all the way in, my cock pressing firmly against her cervical opening, the tight resistance sending waves of pleasure through me.

I paused for a moment, buried completely inside her, savoring the feeling of her snug walls gripping me so perfectly. Her moans turned softer but no less needy as I began to move, slow and deliberate, letting her feel every inch of me as I pulled back and pushed in again. The stretch was intense, and I could feel her body adjusting to my size with every thrust, her arousal making her impossibly slick and warm. The sensation of my cock brushing her cervix with each deep stroke heightened the intensity, an intimate connection that made every movement electrifying.

I maintained this slow, deliberate pace for over twenty minutes, savoring every moment as her tight, slick pussy gripped me perfectly with each thrust. Her body responded eagerly, her restrained legs trembling and her hips shifting as much as the straps allowed. Periodically, I reached down to flick her clit or tweak her puffy nipples, eliciting high-pitched cries of pleasure that echoed through the lab.

Her moans turned to gasps, then cries, as her body began to tremble uncontrollably. The first peak hit her hard, her inner walls clamping down on my cock as her hips bucked against the restraints. I kept moving, slow and deep, letting her ride the waves of her climax before easing her into another. Each time I brushed her clit with my thumb or teased her nipples between my fingers, her cries reached a fever pitch, and her body convulsed with another powerful orgasm.

Her peaks came in rapid succession, her pussy spasming around me as if desperate to milk every ounce of pleasure from my cock. Her voice was hoarse from screaming, her body drenched in sweat, yet she showed no signs of slowing down. I marveled at how insatiable she was, her string of orgasms leaving her completely at my mercy yet begging for more with every thrust. The sight of her restrained, overwhelmed by pleasure, only spurred me on, each stroke bringing her closer to another peak as I maintained my relentless rhythm.

I could have gone on for hours, savoring the incredible sensation of her tight little vagina gripping my cock with every slow, deliberate thrust. Her body responded so perfectly, her string of orgasms leaving her trembling and helpless beneath me. But it was getting late, and a nagging thought crept into my mind: what if her mom or dad was waiting for her outside? The last thing I needed was trouble, so I decided it was time to finish things.

I began to pick up the pace, sliding into her faster and harder. The wet sounds of our connection filled the room as her moans turned into desperate cries. I felt the familiar heat rising in my balls, the pressure building with every powerful thrust. Her pussy clenched around me, her restrained body convulsing wildly, overwhelmed by another peak as I drove her to the edge once more.

After I recovered, I pulled out slowly, watching my cum drip from her stretched pussy. She lay there restrained, her breathing heavy and her body slick with sweat, the remnants of her orgasm still visible in the faint tremors of her thighs. I reached down and slid off her cum-soaked thong, pocketing it with a smirk. Then I grabbed some tissues from the counter and gently cleaned her up, wiping away the slick mixture of our juices from her swollen, glistening folds.

I left her top off, unable to resist the allure of her perky, cone-shaped tits with their stiff, puffy nipples still standing proudly. As she caught her breath, I grabbed my phone and snapped a few close-up photos of her exposed chest, the perfect little details of her youthful beauty preserved for my private collection. Her restrained body, glowing with satisfaction, was a sight I wouldn’t soon forget.

While she finished the computer tasks still displayed in her VR headset, I took a moment to transfer the webcam footage to my personal cloud drive. The high-definition recordings had captured every tantalizing detail of the session, and I made sure to delete all traces from the lab computers to ensure no evidence of my unprofessional behavior would ever reach my supervisor.

When Tania finished her tasks, I released her from the restraints and helped her out of the MRI scanner. She emerged with a satisfied grin, her bare skin still flushed and glistening. She glanced at me, her lips curving into a sly smile, and asked, “Did I complete all my tasks to your satisfaction?”

I couldn’t help but smirk at her playful tone. “Very much so,” I replied, meeting her mischievous gaze. “You exceeded expectations. I’m looking forward to seeing you next week.”

She adjusted her skirt, her movements deliberately slow, as if savoring the moment. Despite her tender age, Tania was already an expert at wielding her sexuality: her outfit, her confidence, her knowing glances were all part of a calculated effort to seduce me, a man nearly twice her age. And how could I resist such temptation? Every look, every gesture screamed intention, her youthful allure paired with an almost shocking boldness.

As I watched her gather her things, I tried to rationalize my actions. Susan, my loyal and loving girlfriend, had kind of given me free rein as long as it didn’t get back to her. What harm could it do if she never found out? And yet, I couldn’t entirely shake a slight pang of guilt, knowing I had taken advantage of someone so young, even if she was technically an adult.

As Tania danced around the room, completely unashamed of her nakedness, her bare tits swayed enticingly with every playful move. She cupped one in her hand, lifting it as she flashed me a mischievous grin. At one point, she dipped her fingers between her legs, scooped a fingerful of cum from her pussy, and smeared it across her nipples with a laugh. “I only ever fuck older guys, you know,” she teased, her voice dripping with confidence. “In fact, you’re the youngest I’ve fucked so far! But I couldn’t stop thinking about that big bulge in your jeans I saw last week. It got me really intrigued.”

She leaned casually against the table, continuing her shocking confession. Tania admitted to regularly screwing two of her high school teachers, one of whom was close to retirement, as well as a string of her mother’s boyfriends. “Older men just know what they’re doing,” she said with a smirk. “They’re so much better than guys my age. Clueless kids can’t even find the clit.”

She sauntered back over to me, her hips swaying provocatively, the confidence radiating from her every move unmistakable. Her eyes glinted with mischief as if daring me to rise to the challenge again. “Men are so easy,” she said with a smirk, running a finger down my chest before letting her hand trail lower. “Especially older guys. They can’t resist my tight pussy. Not teachers, not my mom’s boyfriends - they all want me, and I love knowing they can’t help themselves.”

Her hand slid between my legs, gently cupping my balls and giving them a light caress. “Even you couldn’t resist, could you?” she teased, her voice low and dripping with satisfaction. My cock twitched weakly at her touch, but my body was utterly spent, drained of every ounce of energy. She gave a playful squeeze, her smirk widening. “Maybe next time,” she whispered, her tone filled with mock pity.

Finally, she seemed to accept defeat and began gathering her things. Her grin lingered as she dressed, every movement deliberate, making sure I was watching until the very last second.

Just as she reached the door, she spun around and launched herself at me, pulling me into a deep, passionate kiss. Her tongue invaded my mouth, tangling with mine until we were both gasping for air.

“Only hookers fuck without kissing,” was her shockingly mature explanation before she turned and headed for the door, humming with youthful vitality. Just as she reached the exit, she glanced over her shoulder with a mischievous grin. “See you next week! Oh, and by the way, I’m not on the pill,” she added with a giggle before walking out, leaving me standing there, stunned.

Was she ready for children, being practically a child herself, barely more than half my age? The thought hit me like a brick as I recalled she was ovulating today - the absolute worst time in her cycle to fuck unprotected. My cock stirred again at the memory of her tight, fertile body, but my mind raced with the implications. I made a mental note to stock some condoms in the lab for next time, just in case her insatiable appetite led to another reckless encounter.