Disclaimer: All characters and events in my stories are purely fictional and all characters are of legal age of consent. Any resemblance to real persons or events is entirely coincidental.
Author's Note: This story takes place on an alien world much like our own, where the intelligent humanoids face many of the same challenges we do -- and some that we don't. I'm trying to play with concepts for my sci-fi visual novel Silent Space, and this is one of the ideas that didn't really fit with that universe. Hope you like it anyway XD
~~~~~
"What's a gamete?"
Karla thought about her boyfriend's question carefully. She'd only get to answer once on the exam, and the whole test was worth forty percent of her grade for the course.
"A gamete is a cell carrying genetic information, that bonds with other gametes during fertilization in cases of sexual reproduction."
She smiled, but then raised a finger to stop him from cutting in.
"AND though most animals including our own species need three gametes for reproduction, some animals such as the Kipth and... the... AZIK, make use of only two. A single sperm and an ovum."
Kyle nodded, happy that she'd given him enough for full marks. As he thought about the question, though, he couldn't help but sit in wonder at the diversity of the natural world.
"It really is crazy how some creatures reproduce totally different from us" he remarked, trying to imagine it. "Can you imagine if we each had one dad?"
Karla shrugged.
"It's kind of weird to even imagine it."
As Karla thought about it, that might be kind of nice right about now. She'd read in the biology textbook that Kipth also didn't experience the same intense, almost overwhelming lust that girls did when they were near suitable mates.
She stared at her boyfriend, a nice looking guy with light brown hair and a smile that made her heart flutter. She thought about what she'd learned in genetics class about eye colours, and wondered if her future babies' eyes would be brown like hers or maybe blue like Kyle's.
It's not as if wondering about it did any good, but that wouldn't stop her. She wondered, even though she knew full well that there was no way to even know who the other father would be. For whatever genetic reason she didn't understand, who was suitable changed each time a girl was fertile and her body could choose anyone that it wanted. The way someone had simplified it for her once was that her body would choose the man she's most attracted to (her boyfriend) and then select a second from the guys she's around who is a good match for the two of them. She'd thought about it for years, imagining who might be her second mate when she was ready to have her first baby.
Of course, she and Kyle had decided that they weren't ready for the time being. For now, he joked, she was just going to hold off when she got a 'crush' on some other guy. Her first 'crush' was a year ago, as she approached the peak of her first cycle as a woman. He was a nice guy named Christopher, an old friend of hers from school. She had realized so late what was happening that she'd embarrassed herself, coming onto her friend and boyfriend while the three of them were hanging out. Kyle had managed to get them out of that mess and they'd avoided Christopher until she was past her heat, but they both knew that it would be back and that it'd probably be someone else besides Christopher this time.
And therein lay the problem that she was wrestling with in the back of her mind, distracting her from her studying.
She had gone with her boyfriend to visit their friends Ben and Lucy a few days ago, only to be faced with a sudden explosion of sexual urges. Just standing there at their door, she could feel an incredible warmth between her legs, soon followed by an urgent wetness. The only conclusion to draw was that she had entered the height of another cycle and that this time, Ben was her other suitable mate.
The prospect of avoiding Ben (and by extension seeing very little of Lucy) was pretty unpalatable for both of them. It was true that they hadn't even been friends with Ben and Lucy for a year, but they all got along really well and they had quickly become their closest friends.
In fact, they were supposed to go over to visit the two of them for a sleepover.
Karla knew that she didn't want a baby, and the idea of sleeping with Kyle and Ben didn't appeal to her as anything more than a fantasy. Yet, after experiencing how her heat clouded her judgement, she couldn't imagine saying no to them if the same thing happened again. She considered cancelling, but her boyfriend knew she'd desperately been looking forward to seeing Ben and spending quality time with Lucy.
"What if I just don't go with you?" Kyle blurted out.
It was an obvious solution to exclude one of the guys, but Karla had wanted to find some other way. She liked spending time with her boyfriend, doing things together as a couple. Going alone almost didn't seem worth it, especially since Kyle and Ben would miss out on seeing each other. Then again, she hadn't seen her friends in a little while and had really been looking forward to seeing them. If it was this or nothing, why choose nothing?
"Are you sure?" she asked.
Kyle nodded.
"I don't see any other way. Either I don't go, or we both don't go, and I know that you and Lucy really wanted to hang out."
It was true. There were only two options, and all of their talk was simply avoiding making a decision. Once they got down to it, the choice seemed pretty obvious.
"I'll be fine" he assured her. "I can go visit my parents. They've been asking to hang out with me."
Despite how much she wished there was some way to both go, there simply wasn't. Ben was going to be there and she wasn't going to be able to control herself if Kyle was as well. It was decided.
~~~
When Karla arrived at Ben and Lucy's, her friends seemed a little disappointed that Kyle hadn't come along. She told them that his parents had insisted he go visit, avoiding any mention of her heat. She felt embarrassed about it, and she thought Lucy might get a little jealous if she knew. It was completely natural, but Lucy had always been on the jealous side of normal.
Settling in, the friends happily started catching up and talking about what they do for the evening.
Though she missed Kyle, Karla actually had a really good time. They ate a nice dinner that Ben made, sat down on the couch and watched a couple movies they'd picked out, and then headed off to bed. She felt a little guilty about taking the bed and having them sleep on their pull-out couch, since Kyle wasn't even there. But, they insisted, and Karla wasn't going to force the issue.
As she drifted off to sleep, her mind inevitably found its way to the feeling that had surged through her on their porch. She could recall how hot it had made her, how wet she had been, how badly she wanted to be stripped and bred.
Her mind eased into a dream state, reliving that moment and imagining what could have happened...
~~~
"Mmmm" Karla moaned.
Everything was a little foggy, but she could tell that she was being held up in the air. Ben was holding her there, naked like she was. His strong arms were wrapped up under her thighs, his hands firmly gripping her shoulders.
Slowly, he lowered her down and parted her flesh with his thick cock.
It wasn't enough. She wanted more.
Suddenly, the feeling of another man's hands on her hips. He passionately kissed the back of her neck while moving his hips under the crux of her legs.
Yes...
She loved the feeling of the second man's organ rubbing against her opening. She needed both of them inside of her. Together they could give her a baby.
The other cock pushed up and into her, sliding up beside Ben.
"Mmnnn" she moaned.
Ben began moving her up and down with his strong arms, using her body to masturbate both men's shafts. She looked back, expecting to see Kyle but finding only a faceless vague shape of a man. She didn't care, though. He was going to breed her with Ben. They were going to give her what she needed.
She needed their cum to erupt into her...
"Mmmnn?" Karla grumbled, opening her eyes.
She looked around, recognizing the inside of Ben and Lucy's bedroom.
It was a dream.
The dampness between her legs quickly brought her back to those feelings, however, and she gingerly moved her hand to feel herself.
"I'm so wet" she remarked to herself, feeling the wetness of her folds. Her dream had been so hot that it had affected her body.
Slowly, she found herself moving her fingers.
"Mmmm..." she whispered, enjoying her own touch. Her arousal and the dream had probably been brought on by being around Kyle and Ben yesterday, but her horniness was nothing that a good orgasm wouldn't fix.
She dipped her fingers into her lips, then brought them back up to her nub and gently rubbed it side to side.
She was normally rather shy about fantasizing about other men, but today was different. Whether it was her hormones, or the environment, or the dream, she found herself imagining Ben's muscular body climbing onto the bed with her. She turned over, grabbing hold of her left breast while her right hand still massaged her clit.
Without a thought, Karla arched her back, as if to present herself to him. In her fantasy, she could feel his weight moving up the bed, overtop of her. She could feel his strong arms grasping the back of her neck and the her left hip. His cock pressed against her opening, slowly forcing her open.
"Mmmm" Karla moaned into the pillow. She could almost feel Ben forcing deeper, inch by inch, until he was buried up to her farthest recesses. She imagined the feeling of Kyle's cum dripping down her inner thighs, forced out by Ben but not before fertilizing her and preparing her for Ben's seed. Her hand sped up, rubbing forcefully on her nub, which throbbed with pleasure. She was almost there.
"Nnnngg!" she moaned. "Ugggh..."
Karla's body tensed and jerked, her legs clenching on her hand and the imaginary cock inside of her.
"Mmmmmnnnn..."
She turned over, breathing deeply. There was still a gentle pulsing pleasure in her pussy, but she mostly just felt the euphoria of post-orgasmic bliss.
And desire.
As she contemplated why she was so horny, a sudden knock on the door shook her from her thoughts.
"Karla?" Ben called. "Can I come in?"
She looked down, confirming that she was covered by the blanket.
