Chapter 1

Caution: This Sex Story contains strong sexual content, including Ma/Fa, mt/ft, Ma/ft, mt/Fa, Consensual, Reluctant, Rape, Heterosexual, Science Fiction, First, Bestiality, .

Desc: Sex Story: Chapter 1 - The bonobo species of chimpanzee is famous for the constant sex with no relationship to procreation. What if it is the result of a virus that changes the apes' behavior for its own ends? When it makes the leap to humans, it makes women insistently seductive and turns men into rapists. The virus spreads with lightning speed and society is profoundly transformed.

"It has been found that the Toxoplasmosis parasite has the ability to change the behavior of its host: infected rats and mice are less fearful of cats -- in fact, some of the infected rats seek out areas marked with cat urine. This effect is advantageous to the parasite, which is able to proliferate if a cat eats the infected rat and thereby becomes a carrier ... Some scientists speculate that Toxoplasma may have similar effects in humans."

Wikipedia entry on "Toxoplasmosis", November 2012


Jack and his friend Bill had polished off one six-pack and were nearing the end of the second. They were juniors at Stanford, dorm hall-mates. They had wandered the campus a bit, looking for some sort of action, but there was nothing. Now they were back in Jack's room.

Bill was restless. "Hey, Jack, you know I work in the primate lab."

"Yeah, gorillas, right?"

"They've had them a long time, but they got some bonobos last year."

"No kidding. There's something about them. Aren't they the ones that fuck constantly?"

"Well, not all the time, but they do it a lot."

"I wish chicks thought that way. I'd like Meghan to say, 'Hi, Jack, I'm horny, wanna fuck? I know you got to study, but it will just take a minute. Quick in and out, give me a spurt, that's all I want.' Oh, baby!"

"Yeah, I wish." Meghan wasn't Bill's type, but a quick fuck -- a nice fantasy.

His mind wandered from the lack of Saturday night action. He thought of Patrice, the young female bonobo who was sick. They didn't know what was wrong with her, and he and all the others hoped she would recover. He wondered how she was doing over the weekend. He could check in on her, and it would be cool to show Jack the facility. It was strictly forbidden to bring anyone into the bonobo lab who didn't have clearance. But hey, what harm could it do?

"You wanna go see them? The bonobos?"

"Really? You could do that?"

"I could, sure. I'm not supposed to let anyone else in, but who's gonna know?"

"Well, OK, it beats sitting around the room on a Saturday night."

It was a half-mile walk to the bonobo lab. Bill punched in his code and they went in. Most of the animals lived together in the enclosed courtyard of the building, which had been modified to simulate their natural environment.

"That's where they live mostly," Bill said.

"Where are they?"

"They have their nests over there." He pointed.

"I can't see anything."

"Well, they sleep at night."

"Can't you turn on the lights?"

Bill laughed. "No way -- I'm not sure I could even find the lights." He hoped Jack wouldn't start trying all the switches -- he was a bit impulsive, especially when drunk.

"But there's one who's not in there. Patrice. She's sick. We could see her."

"OK, where is she?"

Bill led Jack down a corridor to her room. Someone had left the lights on, and through the window they could see Patrice, sleeping in the corner. Bill punched in his security code again and the two entered. Patrice didn't move.

"She's ugly," said Jack.

"Well, jeez, she's an ape."

"Whatever. They say we're like almost identical, right?"

"In the DNA, yeah."

"Can I pat her?"

"Let's see how she is." Bill went over cautiously. He spoke as if to a child. "Hi, Patrice, how are you feeling this evening?"

The ape raised her head briefly and barely opened her eyes.

"Not great, I guess."

"Yeah. So, can I pat her?"

She was too lethargic to pose much danger. "Yeah, if you're gentle."

Jack stroked Patrice's back. Bill couldn't read bonobo emotions so well yet, but there was no evidence of any distress. "I wonder where her pussy is. Does it look different from all that fucking?"

Bill was uneasy when Jack moved his hand down between her legs. He'd never dared to touch a bonobo there -- he'd never seen any of the staff do it either, but Patrice didn't seem to mind.

"I don't know about that, Jack."

"Hey, it's natural, right? And she'll let me know if she doesn't like it. I wonder if she gets turned on from rubbing ... Her sex part does look pretty funny, doesn't it? ... But there's her hole ... Shit, I'm getting hard just looking at it. I haven't had any pussy in ages."

"Yeah, right, Jack," said Bill. But he noticed his own cock stirring just a little.

Jack kept rubbing her vulva. Suddenly Patrice turned onto her back and spread her legs wide and looked up at Jack expectantly, if groggily.

"Jesus! She's asking for it."

Bill was astonished.

"She's ugly, but she's got a pussy. You think I could? What a story!"

"Yeah, right," said Bill. "Fucking a bonobo. That will be the day."

And then in a flash Jack's pants were down, he mounted the little she ape and stuck his cock right at her ape pussy. "Unnnh, unnnh, unnnh!" he said with a laugh. Patrice lay unmoving in her obviously receptive position. "Getting my rocks off in a monkey! She sure is tight!"

Bill couldn't believe his eyes, then he was horrified. He was also drunk, and it took him a few seconds before he reacted. "Are you crazy? Get off of her!"

Jack laughed and got off at once. "Oh well, I barely got into her."

"Do you realize what kind of trouble I'd get into if anyone saw that? Or how she could rip you apart if she got pissed at you?"

"Hey, man. It was just a joke," he said refastening his pants.

Bill ushered Jack out hurriedly, and his friend didn't object.


When they got back to the dorm, Jack took a shower. In retrospect, the idea that he'd tried to fuck an ape was disgusting, and he scrubbed his dick thoroughly.

Towards morning he woke up with fever and chills. If it was a hangover, it was unlike any hangover he'd ever had. But by the afternoon he felt OK and went about his routine.

In the dining hall that evening he noticed the chicks all looked especially hot. He was aware of wanting to fuck them all, even the fat ugly ones. He smiled as he realized they looked a lot better than that ape. But then the ape had been naked and spread her legs for him. These girls didn't do that. At least not without a lot of hard work and some luck, and then not the pretty ones.

Man, he was horny. When he got back to his room he thought about jerking off, which would be his usual solution to the problem. But he didn't feel like it. He wanted the real thing. To get into a pussy. The desire burned like never before, and that was saying a lot.

Walking to the bathroom he went right by Meghan's door. And there she sat in her bathrobe. Shit. His cock got so hard he couldn't take a leak when he got to the men's room. Shit, why couldn't they just fuck? It was natural, right? He turned around and walked back. No one was looking, and with his heart pounding he walked right into Meghan's room and closed the door behind him.

"Uhh, hi Jack, what can I do for you?" said Meghan, looking up with an uncertain smile.

"Did I ever get to tell you just how amazingly beautiful you are?" He quickly moved behind her and started rubbing her shoulders.

"Ummm, I don't know as you did, and that's very nice, but, um, you gotta leave." She sounded alarmed.

"Oh, come on, baby. You're so sexy, how about a little quickie? I'm so fucking horny." His hands moved around to her breasts, which he cupped firmly.

Meghan scrambled up out of the chair and faced him. "No! No, no, no! Now get out!"

Her words inflamed Jack even more. "Fuck it. I'm gonna have you, now shut up!" he said with a furious intensity. He would not be denied. He shoved her onto the bed, and pulled down his pants to free his erection.

Meghan cowered back against the wall, clearly frightened.

"Jack," she said. "Come on, now Jack..." she tried softly.

"Spread 'em!" he commanded. "Let me at you. Or else!" He balled up his fist.

The color drained from Meghan's face, but she lay back and spread her legs.

"Ha! Look! No panties! I knew you wanted it!"

Meghan whimpered, "But ... But I was just airing out ... Never mind..."

Jack was on her in a flash. He roughly opened her nightgown to reveal her breasts. Big and full. But her pussy was what he wanted. It was right there. He dove for it, spreading her cunt lips roughly with his fingers. He pressed his twitching cock forward when it was right opposite her opening, and then he shoved. Even with just his tip in, it felt fantastic -- hot and tight. He realized the few times he'd done it had always been with a condom, and this was way better. He pressed hard, and harder still when her pussy resisted. His rapid fucking motion drove him in deeper with each stroke. He'd do it to her and give her his load. It was natural. No holding back to make her happy -- something he'd never succeeded at before anyway. He bottomed out, and it felt incredibly right to have gotten into her all the way. With a few more stabs, in and out like lightning, the pleasure built fast and then broke. He moaned and felt the warmth of ecstasy spread from his loins to his entire body. His cock was twitching and shooting gobs of his jism into the hot girl. Before many seconds he was done and pulled out, totally satisfied.

Something was a little strange, though. What had he just done? This was called rape, right? But why was it wrong? It was mating. Natural. He'd never seen it so clearly before.

"You won't tell anyone, right?" he said.

Meghan hesitated.

"I'm sorry," he said, "I don't know what came over me. Jeesh. You won't tell, right?"

Meghan shook her head tentatively.

"Man," he said to himself with a little smile, putting himself back together and letting himself out, shutting the door behind him.

He'd apologized because he thought he ought to, and he realized it would be bad if she told. But he didn't really regret it. It felt fantastic. He wondered why he hadn't done that before. Just taken what he wanted.


Meghan sat on her bed. She was numb. Incredulous. She'd been raped. They kept saying it was common, but she'd never really believed it could happen to her.

But somewhat to her surprise, she wasn't feeling totally horrible. Her pussy was a little sore, but there had been nothing physically traumatic about it. She'd had sex with boyfriends before, and it was exciting to see them go for it at the end, that masculine power and frantic urgency as they crammed and even overfilled her private space. Of course she was usually looking up at them in her own afterglow, as they satisfied her before going for their own pleasure. Her rapist hadn't, of course. But she'd found herself getting wet even as he was threatening her, and realized she was pretty well lubricated by the time he had shafted her all the way. The feel of his penis was different, too -- she'd never had one in her without a condom before. It felt nicer, she realized with some shame. And then he'd unloaded up inside her. She reached down and ran her finger through the goop that was oozing out of her and sniffed it. Yeah, definitely different from pussy juice after condom sex. She'd smelled semen before in the early days when she'd given hand jobs. She'd even tasted it a couple times -- blech. The thing was, she was ashamed to admit that it was kind of thrilling in a horrifying way to get just taken like that.

A big part of her also felt violated, degraded, dirtied: raped. But that was what she expected, and the other part was more interesting, more curious.

She knew what she was supposed to do. The rape hotline phone number was posted everywhere. A series of sympathetic women would let her vent her feelings, take down her story, swab her vagina, and help her fill out forms. There'd be no doubt they'd had intercourse -- a great gob of his DNA was in her that very moment. But of course there would eventually be a trial, and his lawyers would claim she had consented, and it would be her word against his. And once she told, it would be public, the news spreading everywhere. Oh, her identity would be withheld, but people would find out. They always did. Poor Meghan, the rape victim.

She was aware of that big part of her that felt furious. Indignant. That wanted to see Jack suffer. But there was another part of her that reflected on what had happened a different way. A mere physical act. A cock up her pussy, something she'd welcomed and enjoyed many times. She wasn't sure how horrified she wanted to feel. How like a victim. That's the role she'd be called on to play. Indignant victim, wronged woman. And it would take the rest of the evening at least. She'd never get her physics problem set done.

All she had to do was look on the desk for the number -- heck, it was visible from where she sat, on the sheet of important phone numbers she'd taped to the wall. All she had to do was pick up her cell and dial. And walk to the health center. But one minute went by. Then another, and she just sat. She was still sitting in her dorm room, which was exactly as it had been an hour earlier. In so many ways, the world had not changed one bit. She really needed to do well on the next physics test.

What had changed was that she had sperm in her pussy. She was on the pill, so that wasn't a problem. Did Jack have some STD? She could deal with that possibility by just going to the health center to get tested. It was totally routine. She'd had a roommate who had done that, who came back relieved and said it was easy.

But for now she'd take a shower. Her thoughts continued in the same vein as she got ready and walked down the hall. The water felt good. She reached inside to try to dig some of the sperm out of her, but it didn't look like she was getting anything. That asshole Jack. He raped her and she should go after him. But conflict always made her really uncomfortable. The physics problem she had been working on when she was so rudely interrupted came back. It sure was a lot easier to just go back to studying. And that's what she did.


Jack reflected on how fantastic and 'right' his sex with Meghan had been. He knew she could rat on him and he'd be in big trouble. And part of him felt guilty. But it would be her word against his, right?

Instead of feeling satisfied, though, he felt his urges as strongly as ever. If he could just go in and fuck Meghan, why not other girls?

There was Anne, who lived down a floor. Anne was kind of fat, but as he thought about her now his mind focused on the hot, wet cave she surely had between her legs. He had gotten the feeling she liked him. It was subtle, but he was pretty sure. He wondered if she'd do it with him. He'd have to pretend to like her. The idea of pretending used to bother him, but now he wasn't sure why.

He stopped by her room at 11pm, and after a little conversation he suggested they take a walk. She did most of the talking, and he gave appropriate little answers. He realized she bored him, or more to the point, there was something he wanted a lot more than her conversation. His cock would briefly rise a little each time he thought about it.

He tentatively took her hand, and she smiled and squeezed it. After several more minutes of walking and talking, he asked if she'd like to come back to his room and look at a cool YouTube video on his laptop. She hesitated but agreed. Then she stood in a way which let him know she hoped he'd kiss her. He didn't really feel like it, but it was a means to an end, and he kissed her anyway.

And 45 minutes later, at 2:15am, there they were, on his bed, his hand right on her panty crotch, her only other garment a practical, ordinary bra. He started tugging her panties down, waiting for her to lift her butt. He was in just his briefs.

"Jack, that's a great idea, and I'd love to, but not quite yet, OK? It's awfully soon."

Oh, great. A whole evening and it would come to this. He felt the same intensity start to burn in him as he'd felt in Meghan's room a few hours earlier. "But you're so sexy, Anne, I feel like I'm gonna burst. I've just got to have it!"

"Oh, that's great you want me so much, but not yet, OK?"

"Oh, come on, Anne!"

"Um, you want a hand job?"

"No, I don't want a hand job!"

"I've never done fellatio before," she said.

"Nah, it's got to be the real thing." Women throughout time have been less than thrilled and men just had to take them anyway. The survival of the species required it. His mind was made up.

He whipped off his underpants to free his bulging stiff cock.

"Jack!" she said. "No!"

He tried pulling down her panties but she held them up.

"Cut it out!"

"Ah, c'mon, I gotta have it!" he said. "You'll like it too." He mounted her.

"No!" she said with sudden firmness, twisting under him.

He felt no illusion of affection any more. "Hey. You lie there and take it!" he said with menace, as he grabbed her head and shook it from side to side.

Anne stopped struggling and looked to one side, tears brimming in her eyes.

Fine, whatever. He pulled her panty crotch to the side and nosed his cock tip into a copious growth of hair. But there was an indentation when he pressed, a clear indication of where her hole was. And with harsh, insistent thrusts, he felt his cock tip break through from hair into smoothness. Anne's body stiffened momentarily but she didn't struggle. It was tight; he wondered if she was a virgin. But she was also wet and hot, and he insistently burrowed in, deeper and deeper. When he was in all the way he started his vigorous fuck. It was so natural, he thought. But mostly he thought about how it felt great. In well under a minute he felt the ecstasy approach and then break in a wholly satisfactory manner. Ejaculating into a pussy was so great he wondered if he'd ever jerk off again.

When he caught his breath, he started dressing. "You won't tell?" he said.

"No," Anne said after the briefest hesitation, and she started dressing too.

"Good," he said, satisfied. He realized now that raped girls didn't always just report it. It was a total pain in the ass for them too.

Anne's rage welled up as soon as she was down on her own floor. She went straight to the health center. They took her story, took her vaginal swab, and had her fill out forms.

And the next morning the campus police knocked on Jack's door and took him in for questioning.

He was worried. But all I have to say is she consented, he said to himself. Make up a simple story and stick to it.


Meghan started feeling feverish the next day during physics. The symptom reminded her that she had to go to the health center for an STI test, though she thought you had to wait a while before they could detect anything. She dragged herself through the rest of the day. At intervals throughout the day, the awareness of her rape surged back with a vengeance, and she felt rage. But she also was aware of the primal satisfaction of being mated, quick and simple, straight to the point.

In bed that night, she found the rage had lessened and the memory of satisfaction strengthened. She also felt like strangling Jack, watching the life ebb slowly out of his eyes as a wire noose dug viciously into his throat. Then the image shifted to his being on top of her thrusting urgently, bringing them to simultaneous orgasm before she pulled the wire noose so very tight. And she imagined his cock still pulsing into her pussy even as he died.

By the time she awoke the next day, she felt all better. She'd been raped, but somehow it didn't bother her the way she thought it would. The excitement of Jack's just taking her was strong in her mind. Of course he wanted to take her. That's what men wanted, to fuck, so who could blame them if they just went for it sometimes? And it felt good to her. It wasn't politically correct, for sure. But if she felt that way about it, who had the right to tell her she shouldn't? Why didn't girls just say yes more often?

Throughout the day she thought that if any of the guys who'd come on to her over the past few months tried again, she'd be interested. She had dinner with a couple girl friends, as usual, but she was distracted because most of the boys looked very sexy. She was aware as never before of just wanting them. By the middle of the evening the feeling had grown uncomfortably strong.

Carl lived a couple doors down, and he'd made it pretty clear he was attracted to her.

"Hi, Carl," she said in her sweetest voice, coming into his room. "How are you?"

"Umm, pretty good Meghan, how are you?"

"Oh, I don't know, kind of lonely. You mind if I shut the door?"

"Um, no! That's fine."

"You mind giving me a hug?"

She was not at all surprised to find he didn't mind in the least.

As they stood hugging, she moved her legs so her crotch was pressing against his thigh.

"Oh, sorry..." she said, feigning self-consciousness. "It's just I kind of miss it sometimes, really bad. You know what I mean?"

"Um, about wanting to do it? Sure, yeah. I miss it a lot."

"Would you, um, do you think you could do me a favor, just this once? I know it's a lot to ask."

"You mean, like, um, do it with you?" He sounded like he didn't believe his good fortune.

"Well, yeah, kind of."

They kissed, and his hands roamed. He wasn't experienced, but she didn't care.

He fumbled with the buttons on her blouse, but she diverted him, her desire rising suddenly to frightening strength.

"I'm so hot, I don't want to wait for that. Down here!" she said, moving his hand lower.

Despite his inexperience the feeling of fingers on her crotch rapidly made her pussy go from moist to wet.

"Oh, I'm ready -- just do it, OK?" she said, pulling down her jeans and panties all in one motion but leaving them around her ankles, spreading her legs wide.

"Um, OK, gee, what about protection?" Carl said, taking his shoes and socks off quickly before removing his own pants and briefs.

"Oh, to heck with that. I'm feeling reckless."

He mounted her, his face brimming with excitement.

"In you go!" she said, aiming his cock.

He gasped when his tip first made contact with feminine warmth. He grinned and pressed, working his penis into her. It fit very nicely, she thought. He whimpered and made a series of short frantic strokes as she felt his organ swell, and then he climaxed. She didn't feel the spurts, but she knew he was pumping sperm into her. The motion felt kind of nice, but she was nowhere near an orgasm. It was getting him into her that was so incredibly satisfying. She thought women worried way too much about orgasms.

When he regained his breath, he began kissing her all over her hair and face.

"Oh, that was great, Carl," she said, shaking her head to stop his attentions. "That was just what I wanted."

Taking the hint, he let his penis slide out and rolled off.

She pulled up her panties and jeans.

"Thanks, Carl. I feel very satisfied."

"Um, no problem! I mean, wow. Who ever thought --"

"Bye, Carl."

She was feeling giddy with excitement. That's all a girl had to do to get laid. The boys wanted to fuck her, and she wanted to get fucked, pure and simple, and it all worked out very well.

"Hey, Bill," she said in the hallway, Carl's sperm oozing out onto her panties. "I'm feeling kind of horny. Would you be willing to just do it to me?"

"Um, I do have to study..."

"Oh, it can be really quick. Any way you like. I just want to get it -- from you!"

Bill gulped, while Meghan took him by the hand and towed him to her room.

"Wait!" he said, then whispered, "I've got some condoms in my room."

"Oh, it's OK, there's no need for that."

But he insisted. Minutes later they were on her bed. Once again she saw no need to really get undressed; exposing her pussy and opening her legs worked fine even if her ankles had to stay together.

Bill fumbled with the condom, but in half a minute he had it on and needed little encouragement to go plunging right in without delay.

"Oh, man does that feel good! But I better slow down --"

"No, don't worry! Just got for it! Come in me!"

Bill smiled at her, closed his eyes, and pumped like crazy. Within ten seconds she heard the gasp that meant he was finished. He quickly withdrew, peeled off the condom, and put himself together.

"That was great," he said, making to leave but obviously uncomfortable.

"Yeah, just what I wanted!" she said, totally truthfully. Her smile put him at ease and he was gone.

But she wanted more. She was in a dorm full of horny guys. It shouldn't be hard to get what she wanted -- and indeed it wasn't.


Anne sat in the small conference room.

"I don't understand," said Mrs. Worthington. "The night before last you told us Jack raped you, and now you're saying he didn't."

"That's right."

"Well, did you consent or not?"

"Yeah, I did. I know I said yesterday I didn't, but I think I did."

"You don't have to protect him, you know. There's no excuse for rape, and it's important to stop men, or else they'll just go on raping one girl after another." She paused between sentences, hoping to get through to this girl. "You'll end up feeling better about yourself if you do the right thing ... I know it might be uncomfortable, but you're taking a stand for all women ... You don't want to find out some other girl got raped and you could have prevented it, do you?"

Anne giggled. "I think it would be fine if Jack raped another girl. Girls don't know what they're missing. Guys need to do it, and it feels awfully good to get it. I was a virgin, but now I know better."

Mrs. Worthington stared. When she said no more, Anne said, "Sorry to waste your time yesterday, but I don't want to press charges -- I mean, it wasn't really rape at all."

"But ... but you really don't mean that about other girls, right? Not when you think about it?"

"Bye," said Anne, disappearing with a smile.


Carl was giddy. He knocked on Anne's door. He might have to rape her, but he just needed to deliver his load up her pussy. She might be fat and she might be kind of prudish, but he needed to do it to her.

"Oh, hi, Carl, come on in." she said. When the door was closed, she continued, "Say, you wanna fuck me?"

"Boy, do I!" he said, somewhat surprised at her reaction. His erection pulsed to hardness.

"Goody!" said the girl. She knelt on her bed, flipped up her dress and pulled down her panties.

He didn't need to pull his pants down further than a few inches. Cock penetrated pussy quickly. In ten seconds semen pulsed deep into the girl's snatch.

"Oh, that was fantastic!" said Anne.

"Yeah, sure was!" said Carl.

Ninety seconds after knocking, he closed the door behind him. Hardly anything had changed, except that a bit of the fluid from his loins was now swimming around up inside her.


The compulsion to fuck ever-increasing numbers of the opposite sex spread like wildfire through the Stanford campus. A particular pair might do it again if no one else was around, but the urge was for new partners. Quick matings between the already infected like Carl and Anne happened with increasing frequency. But the most intense drive was to do it with a reluctant or hesitant partner -- someone you figured hadn't had sex lately or at all. That was the most important thing, not how attractive they were.

The men spread their infection by a bit of seduction and a lot of rape. They had to be careful in the latter, though, and they still frequently found themselves brought in for questioning or booking.

But it was girls like Meghan who quickly spread their shared infection far and wide. On the street, she got so she could spot those who could be easily tempted. A drunk could usually be persuaded to step into an alley and press his cock up under her skirt. With a deft hand motion and a little pelvic maneuvering, Meghan quickly aligned it so the man's thrust drove it into the wet hole he was instinctively seeking. Seconds later it disgorged its load. Meghan felt wonderful every time and could easily take a dozen in an evening. And then it was the men's turn. A little over a day later, after each had a brief episode of fever and chills, the world had a dozen new rapists to contend with.

Palo Alto has plenty of people who are just passing through. Within days, academics leaving a prestigious conference were carrying the condition back to every corner of the globe. It spread even more rapidly through a more impulsive poorer segment of society, and some of its members are always on the move to different cities.

Police in Palo Alto tallied up a mind-boggling number of rape reports. Compared to a usual of one or two a month, 95 in one week. Just as surprising was that the vast majority of the women withdrew their accusations within a day or two. Many didn't say much more than that, but some did report a sudden interest in sexual promiscuity. Three male detectives reported being propositioned by these women after their change of heart. Some of the accused men reported a suddenly increased sexual interest as well. The authorities urged everyone in the area to use extreme caution in sexual encounters with new partners, and urged women to be especially vigilant about the danger of sexual assault.

It became a front-page national news story, and frantic parents of Stanford students arrived to take their children home and away from danger. Many were already infected, and the condition was soon spreading through their home towns.

Chapter 2 ยป