Human Reproduction Ch. 02

Even now she was already starting to give in to her body's desires, and was slowly leaning her petite frame toward Dr. Jeff. The video had also effortlessly convinced her that men would be just as unable to resist their own evolutionary urge to flood her with their seed, and she realized that letting Dr. Jeff know about her growing arousal like this would make it that much more likely that the professor would rub his body against hers until his sensitive cock slid into her tight little pussy.

She felt a scarily satisfying tingle run down her spine, and realized that her vagina had begun lubricating itself, just as Dr. Jeff had said it would. She tried to ignore the sensation, still wanting to avoid impregnating herself, but she knew that the sex hormones the video had talked about were continuing to flood her system anyway, increasing her desire for sex still further as her body involuntarily prepared her reproductive tract for mating.

It was all too clear to Mona that her fertile body wanted her to let Dr. Jeff breed her, to make her swell up with his child, and there was nothing Mona could do to prevent it. She found herself inadvertently looking forward to the sensation of her labia parting for Dr. Jeff's hard cock as it slid deep into her welcoming feminine embrace, knowing that her silky pussy would wrap his phallus in warm waves of compelling sensation that his male body would be completely unable to withstand. His ejaculation reflex would inevitably trigger, Mona's susceptible womb would be flooded with semen, and that would be that.

Mona knew that she hadn't always felt this way, and was still fully aware that the video was doing this to her, but by this point she also knew beyond a shadow of a doubt that her body was going to get her pregnant, whether she wanted it to or not. It was funny: she had always assumed she'd never have kids, or would at least wait until after she got a solid job, but now that she recognized how badly her body was trying to get pregnant all the time, she knew she'd never be able to wait that long. And that was even if she was able to resist Dr. Jeff's advances once the video was over, which was looking less and less likely as he focused more of his attention on her. Meanwhile, that pleasant tingle between her legs only grew stronger with dangerous sexual excitement at his interest, and the petite young woman quickly realized that she was in terrible danger of allowing herself to be impregnated if nobody stopped her.

She just couldn't help it.

And yet her best friend Megan continued to sit idly next to her, calmly enjoying the unquestionable certainty the video had induced in her as she watched the increasingly aroused couple grow ever closer to coupling. And why shouldn't they? Megan knew better than anyone just how irresistible the human reproductive instinct was, for both men and women, and she was just glad to be able to watch as the two reluctant lovers finally started to give in to their urges. The hand Megan had stuck between her legs picked up its pace as the interested male began tentatively touching the soft, tempting body of the increasingly receptive female. At this point, mating was practically inevitable.

Thanks to Dr. Jeff, Megan had already known that the sexual urges evolutionarily programmed into her shy friend's female body were just as strong as her own; Mona just hadn't realized it yet. And, with the way her cheeks were flushed with arousal as she continued to press herself against Dr. Jeff, it seemed that losing control and getting impregnated was more likely to happen to her sooner rather than later. Megan found herself absent-mindedly nodding along with the lecture again, looking forward to giving birth to Mason's child, but fully aware that even after she did it likely wouldn't be long before her hormones and reproductive instincts had her on her back again with legs spread, teasing some lucky guy into pumping her full of even more of that catalyzing cum. She sighed resignedly to herself. It just wasn't fair how badly women's bodies wanted to get them pregnant.

After what felt like an eternity the video finally ended and Mona slowly came back to her senses. She didn't really feel any different, but she knew that Megan and Dr. Jeff had succeeded nonetheless, and that she'd been successfully brainwashed into trying to get herself pregnant, just as Megan had. Even so, all she could think about was how important it was that she know this information, and how good it would feel when she eventually gave in to her fertile body's reproductive urges and convinced some muscular young stud to slide his cock into her until he came.

The most immediately apparent result of her conditioning was that she couldn't seem to stop rubbing her body against Dr. Jeff's next to her on the couch, and even though she didn't really have any tits to speak of, she still felt herself arching her back to offer them to him anyway. Her knees went weak at the need she could see in his eyes as they locked on to her small chest, and she realized that her flirtations had succeeded. Dr. Jeff's strong hand firmly gripped her slim hip and slowly slid up her side, taking her tight math team t-shirt with it as it did so and making her nerdy body squirm with desire.

Mona knew she should stop now if she didn't want to get pregnant, but her body clearly wanted her to continue, and so she gently untucked Dr. Jeff's shirt from his dress pants in return and began to run her own small hand over the skin of his lightly muscled abdomen. She knew that she wasn't very conventionally attractive, but the brainwashing seemed to have completely taken care of that problem, both because her testosterone-flooded mate was aroused to the point where he'd slide his sensitive dick into any willing pussy he could find, and because her own new, incredibly uncharacteristic brazenness had caused her to start stroking the startlingly large bulge throbbing at the front of the professor's pants.

Her body had instinctively known that the stimulation would only fuel his need for the warm, slick embrace of her vagina, and sure enough his eyes hardened and his hands went from slowly making their way up her slim torso to her tiny tits, to gently but firmly pulling her into a standing position so that he could pull down both her long plaid skirt and her loose underwear. Mona's body rejoiced at being exposed in the middle of his office like this, naked from the waist down, the glistening moisture in her untrimmed pubic hair letting Dr. Jeff know just how ready she was for him to slide into her.

Mona fully recognized that her brainwashed body was flooding her with mating hormones this close to its goal, but she was overwhelmed by the powerful femininity flowing through her nonetheless, suddenly feeling oh-so-receptive to her partner's advances as she watched him unbuckle his belt. Caught up in the heat of the moment, Mona meekly slid her naked pelvis up onto the desk, both thrilled and anxious about what would happen next; and then Dr. Jeff's thick, twitching cock finally bounced out into the open, and Mona was torn between feelings of terror and powerful lust at the size of it while Megan gasped with glee from her couch in the corner.

Strangely, though she knew she should also be nervous about what that cock could do to her vulnerable reproductive tract if it got too much stimulation, all Mona could think about was her pussy's eagerness to feel that monster stretching it out. And so when Dr. Jeff finally approached, Mona simply leaned back and embraced the inevitable, gripping the corner of his desk as her thin legs automatically spread and her pelvis tilted to receive him, shaking with desire as he finally began to slide his cock against her slick entrance.

Jeff certainly had no intention of inseminating anyone today, but his own words had opened his eyes to the truth of his reproductive urges, and now that the head of his cock had made contact with Mona's soft labia he couldn't resist the temptation of pressing against her just a bit harder, needing to feel more of his sensitive skin rubbing against hers. Instead, however, he was rewarded with the addicting sensation of Mona's slick lips enthusiastically parting to welcome him, and his cockhead slipped effortlessly into the tight reproductive tract of the panting female lying on his desk. He paused for a second in surprise at suddenly finding himself enveloped in her silky entrance, while his body rejoiced in the seductive pleasure that washed over him.

"It's so strange knowing that doing this is so dangerous, and yet my instincts are making me want to do it anyway," he reflected as his body urged him to slide his cock just a bit further into the mousy twenty year-old's satisfying pussy.

"That's easy for you to say," Mona retorted, but she pressed herself down onto his thick shaft nonetheless, forcing him into her, needing to feel as much of him inside her as possible, and she moaned in equal satisfaction at the knowledge that she was giving in to her own reproductive urges in doing so. When he bottomed out she let his cock sit there twitching against her textured walls for a second before instinct drove her to slowly slide herself off of him, and then her eyes rolled back into her head in ecstasy when he fully thrust himself back inside without warning, driven by his urge to squeeze himself into her tight embrace. And so their dance began.

Unlike Dr. Jeff, Mona fully recognized that her actions were due to the lecture's programming, but that knowledge couldn't stop her from letting him slide his rigid, sensitive cock into her over and over again, just as she knew that Megan had with Mason. And all the while Dr. Jeff's breathing grew heavier as her body continued to stimulate that cock inside her, instinctively knowing that if it did, Mona would inevitably make Dr. Jeff cum, and wouldn't be able to prevent herself from getting good and knocked up as a result, just like Megan had.

Meanwhile, Jeff continued to marvel at the strength of his own reproductive impulse as he repeatedly thrust between the thin thighs and into the tight, appealing pussy of his fertile young partner, feeling his body growing closer and closer to orgasm as he did so. He didn't want to get her pregnant, but his body didn't care. It just wanted to cum, and Jeff knew that if Mona continued to allow him to massage his cock inside of her like this, he wouldn't be able to resist inseminating her. But, thanks to his own words from just minutes ago, he knew her body wouldn't let her stop, and that her need to be pregnant would force her to keep teasing his cock until he was forced to ejaculate. Still, he couldn't deny that her pussy felt great, and that the feeling growing inside his cock felt just as good.

Mona still didn't want to get pregnant either, of course, but thanks to Megan her brainwashed body certainly did, and she just couldn't seem to stop using her narrow hips to squeeze Dr. Jeff's cock back up inside her tight tunnel even as his moans became more insistent and his body began to stiffen. Fully aware of what was about to happen, Mona gave a purr of primal contentment as her playful pussy eagerly enveloped the sensitive head of the bio professor's cock one final time, and she bit her lip while her dull brown eyes stared intensely into his, urging him to lose control.

The sensation was more than Jeff could take, and his own eyes widened in fateful realization as he thrust himself deeply into her, rewarding his partner with that satisfying feeling of intimate fullness as his cock began to swell and flex with his imminent orgasm.

Jeff felt the urge to climax rising inside of him, and knew that he would be helpless to resist the reflex as the mousy brunette continued to relentlessly stimulate him, clearly lost in the throes of instinct herself. The professor of biology recognized his own evolutionary programming at work as Mona gleefully triggered his ejaculation, and then that seductive tightening sensation was washing over his body, and he found that he was burying himself as deeply inside his partner as he could as his overstimulated cock began to jerk in uncontrollable release. He was fully aware that each blissful throb was sending millions of his sperm frantically swimming for Mona's eggs with the sole intention of impregnating her and passing his genes on to the next generation, but at this point there was nothing he could do to prevent it.

Human Reproduction certainly is fascinating, he thought deliriously as his body continued to pump hers full of seed. Science never ceases to amaze.

Mona couldn't help but smile with grim satisfaction at the knowledge that she hadn't been able to resist her reproductive urges, and that she had successfully stimulated her virile mate to orgasm with her soft, fertile pussy. It had been so easy, and now that it had begun, it couldn't be stopped. Dr. Jeff's hips reflexively jerked against her thighs, slapping his pulsing balls against her taint again and again as his body rhythmically expelled his baby juice into the young nerd's vulnerable womb. Mona could even feel it spurting against her cervix, a slightly uncomfortable sensation that made her realize just how thoroughly she had been brainwashed into impregnating herself, just as Megan had.

It all just seemed so surreal all of a sudden, like there couldn't possibly be any consequences to what they were doing. Dr. Jeff's dick jerking inside of her like this just felt so good, so natural. But, now that his generic material was inside of her, Mona knew intellectually that, brainwashed or not, there was nothing she could do to stop it from working it's potent magic on her fertile body, and soon her trim tummy would begin to swell with life just as Megan's had. All she could do now was lay back and enjoy the final few throbs of Dr. Jeff's cock as her body milked every ounce of potent cum it could out of him, flooding her with pleasure to reward her for her risky behavior.

Fully spent, Dr. Jeff slowly slid his deflating member out of the shy young woman. Now that the deed was done he was starting to feel the guilt of his actions, but he knew that with how saturated his body had been with testosterone, there really had been no way to prevent it.

Mona smiled warmly up at her lover to let him that she didn't blame him for what had happened, even as his seed continued to pool dangerously in her womb. Her body wanted her to be pregnant, after all, just as badly as his had wanted to inseminate her, and they had both very likely succeeded. She only knew, as Dr. Jeff's DNA began to merge with her own, that other fertile young women needed to know about the dangers of their reproductive urges as well. Hopefully they could somehow avoid allowing themselves to be impregnated by the countless men evolutionarily programmed to get their rocks off inside all of those soft, receptive feminine bodies.

"Dr. Jeff," the homely young nerd began earnestly as she looked up at her baby daddy. "I need you to believe me when I say that that video really is what's making us act this way. Of course, now that I've been forced to watch it, I also know that you were right, and that my body is constantly trying to get me pregnant. And, thanks to you," she said with a blush, "I think it's very likely succeeded." She allowed herself a second to appreciate the satisfying sliminess of Jeff's semen, much more viscous than her own natural lubrication, as it slowly seeped out of her and onto the desk. She shivered a bit as the sensation caused her overstimulated pussy to clench in a small aftershock of pleasure, and then continued.

"It's too late for me now that I've already seen it, but we really need to get this video up onto the internet as soon as possible so that everyone can see it. Being aware of this information is important."

"Regardless of whether you're right about the video being responsible for our behavior, Mona, I think you're right about putting it up on the internet," the biology professor and amateur psychologist said as he enjoyed the view of his half-naked young lover's body, still in her compromising position on his desk. In fact, her pussy was starting to look awfully good again the way her legs were still spread, keeping her open and inviting... "First, however, I don't think I'm going to be able to resist sliding back into you. Hopefully just for a minute though, since I don't want to increase your chances of getting pregnant any higher than they already are."

Mona giggled from her position flat on her back on top of his desk, unable to suppress her excitement that the sight of her oozing pussy had triggered her mate's need to fill her with even more of his potent seed. "Ok professor, but I'm definitely making you pay child support if you cum in me again!"

She gasped with pleasure when she felt his rigid cock effortlessly penetrating her once more, knowing all too well that her tight young body would do what came naturally, and that his would do the same.

What a great afternoon.

End of Human Reproduction