Kane sat at his table, trying to make sense of some Council minutes, but the words were floating before his eyes, as though lifted off the screen by some invisible hand. He couldn't concentrate, and it was all Abby's fault. She'd messaged him earlier in the day to tell him to have a shower before she came around, and he'd been able to think of little else since. He'd done as she asked, had a long shower, cleaning every part of him as thoroughly as he could. Now he sat waiting for her, more nervous than he had ever been in his life. He had a feeling he knew exactly why she'd asked him to shower, and the thought had tied his stomach in knots.

Part of him was intensely curious, that same part that had led him to experiment with James all those years ago, because of a need to know himself, know every aspect of his body, of his sexuality, what it was capable of, what he liked, what he didn't. Another part of him was nervous, scared if he was honest, of lots of things. He didn't want to fail in front of Abby. Didn't want to seem inflexible, boring, staid. He was nervous about the mechanics of it, whether his body could do what she wanted, whether it would hurt. He was also scared that it would be ridiculous, that whatever she had engineered would be so incongruous as to make him laugh, and that she would be upset, disheartened, angry. None of these thoughts were putting him in the right mood for a satisfying sexual experience.

When the knock on his door came, he briefly contemplated pretending to be out, but it was a fleeting thought that he dismissed. The curious part of him took over, and he opened the door with a mix of trepidation and excitement that made his hands sweaty, and his heart race.

"Hi," she said, smiling at him. She was dressed as usual in grey jeans and her blue sweater, her hair loose the way he liked it. She had a backpack with her, and she raised her eyebrow at him as she passed beneath his raised arm and went into his quarters. Kane's pulse increased a hundredfold, or so it felt. There was no turning back now.

Abby dumped her backpack on Kane's bed, and then she put her arms around him and kissed him, her hands snaking up his back and into his hair. "Mmm, soft," she said as she ran her fingers through it. Kane hadn't bothered to gel his hair after the shower, and its wayward curls were flopping in his eyes and annoying him, but he knew she liked it like that, so he was putting up with it.

He returned her kiss with passion, forgetting for the moments he was held tight in her arms what she was probably there to do. His cock was starting to throb and swell, as it always did the moment she touched him, or even looked at him.

"You showered then?" she said as she finally let go of him.

"Yes," replied Kane.

"Good."

"Abby…."

"Shush. It's all going to be alright, Kane. I promise."

Kane closed his eyes, took a deep breath to steel his nerves. He might as well go with the flow, try to relax, deal with whatever happened as it happened.

"What have you done?" he said, with as steady a smile as he could muster.

"Ah. I've been working hard. Are you ready for this?" Abby's smile was so big it seemed to take over her entire face. Her eyes were sparkling with humour. Kane felt himself start to smile just from looking at her.

"No, but let's see what you've been up to."

She rummaged in her backpack and pulled out something rubbery that flexed as she held it. It was cock-shaped, and it looked huge to Kane.

"It's massive!" he exclaimed. "And multi-coloured!"

"Don't look at the colour. I had to salvage rubber from all parts of the Ark. I couldn't get consistency."

"Fuck, Abby. That's huge."

"It's not that big," she said with a laugh. "I based it on you but I scaled it down a touch."

"I think you've been over-generous to me."

"Nope. Get yours out and we'll compare."

"I…." Kane was lost for words. There was no way he was getting his cock out to compare it to this rubber version.

"It's okay to laugh, you know. I know it looks ridiculous, but it will do the job, trust me." She handed the cock to Kane; it was hard but flexible, and he examined it closely, fingers stroking the cold rubber. It had veins and ridges just like his own cock, a fat curved head, and it seemed impossibly long.

"Are you just going to put this in me?" Kane's face must have been a picture because Abby laughed again. She put her hand on his cheek, gave him a soft kiss.

"First of all, I'm not just going to put it in you, I'm going to warm you up first. Secondly, I'm going to wear it. I've also made this." She pulled out a mess of straps and buckles, and Kane eyed the whole contraption up with a mixture of awe at her ingenuity, and scepticism that this was ever going to work.

"Have you done this before?"

Abby shook her head. "This is the first time."

"Fuck," said Kane, because it was the only word that came to his mind.

"Yes," said Abby. "I'm going to fuck you. I want you to know how it feels to have someone inside you, stretching you, filling you. It's going to feel so good, Kane. I promise."

A pulse of heat and desire raced through Kane at her words. He hadn't thought of it like that, that it would be Abby inside him, being so intimate with him in this way.

"Okay," he said, handing the cock back to Abby. "Let's do this."

"Put your most relaxing music on." Kane chose Debussy, while Abby dimmed the lights in the room, pulled the shade over the window so the passing of light and dark as they orbited the Earth wouldn't affect them.

"I feel like a teenager about to have sex for the first time," said Kane.

"So do I," replied Abby with a soft laugh. "I have no idea what I'm doing, how I'm supposed to move."

"I can help you with that."

"You can, but let's not get ahead of ourselves. Come here." Kane moved towards her and she kissed him before taking his shirt off, and then her own. She undid his pants, pulling them slowly down over his thighs and his calves until he could step out of them, then she did the same herself. Kane had no underwear for her to remove, but Abby had her black panties on. She hooked her thumbs under the waistband and pulled them down, stepping out of them to stand naked in front of Kane.

"That's the first step," she said, and then she pushed him down on the bed and straddled him, massaging him like she had that first time, kneading every muscle until Kane was sighing with contentment.

"This isn't so bad," he said.

"No, it's not. Turn over."

She sat back so that Kane could turn onto his front, and then she resumed her position astride his thighs. Kane's pulse picked up, because he knew where this was leading. They'd been here before. Abby continued her massage, stretching his muscles, her hands working their way down to his ass, her thumbs slipping into the crack between his cheeks, opening him up. She placed kisses everywhere her hands had been, nipping and sucking at his skin, moving lower, and lower, until she was parting his cheeks with her thumbs and then he felt her tongue on him again, the tip of it dipping inside him shooting a white heat through his veins. He couldn't help but moan.

"Are you okay?" she whispered.

"Yes. It's good."

"Good." She continued licking him, opening him up, and Kane relaxed in spite of himself it was so nice. He heard the snap of a lid and tried to turn around.

"What's that?"

"Some lube. We're going to need more than, er, I can produce this time."

"Okay," said Kane, feeling apprehensive again.

"I'm just going to use my fingers, like I did before. It's okay."

Kane nodded and lay back down. Abby rubbed her finger over his hole, before slipping the tip of it inside him. Kane clenched involuntarily, and Abby put her other hand on his back. "Relax," she said, but it was easier said than done because Kane had started to think about how big that rubber cock had been in comparison to her finger. She moved her finger slowly in and out, probing further with every delicate thrust. She pressed on his prostate, sending a ripple of pleasure through Kane's ass to his cock, and he groaned.

"You feel so good," she said. "Hot and tight."

Kane thought he could come from this and her words alone. His cock was throbbing where it was pressed into the mattress and he longed to stroke it but he couldn't reach it from this position. Abby added a second finger, and she pulled the two apart a little whilst inside him, stretching him. She fucked him like that, slowly, lazily, and Kane got such a rush of blood to his cock he felt faint. Then Kane felt himself stretched further and realised she had added a third finger.

"Oh, God," he said as all of the feeling in his body seemed to be concentrated in his ass.

"Still okay?"

"Yes."

"Okay. Just relax awhile." She withdrew her fingers and Kane heard her rustling around on the bed and then the bed creaked as she stood up. She was muttering under her breath. "Goddam thing," she said.

Kane turned so he could see her. She was tangled up in her strappings; he could clearly see she had her legs in the wrong holes. "Let me help you," he said.

"No, you just relax. I can do it."

"I can't relax while you're struggling. Here." He got off the bed and held on to her while she stepped out of the straps. Kane readjusted them, lining them up so she could step back in, and then she pulled the whole thing up around her hips and fastened the buckles.

"Now for the main event," she said, and she grabbed hold of the rubber cock and pushed it through a gap in the front of the harness, looping it through some more straps and pulling the buckles tight. She stood and looked down at herself, and Kane looked too. Then they looked up at each other, and Kane tried not to laugh but he could see that she was trying not to laugh as well, and they ended up laughing together.

"Oh, my God," said Abby.

"It's… interesting," said Kane.

Abby wriggled her hips and the cock bounced up and down and they both laughed harder.

"Sexy, right?" Abby laughed again.

"I don't know. It is kind of hot, actually." Kane looked her up and down. There was something about the way the harness sat on her slim hips; it gave her a boyishness that he found attractive. It was also incredibly arousing that she wanted to do this, that she'd made this contraption, spent hours no doubt designing it, perfecting it. The hottest thing of all, though, was that she had the guts to stand there wearing it, laughing at herself, yet still so determined, so confident.

Kane moved closer to her, so their bodies were touching, his cock rubbing against hers. It brought back other thoughts, other memories, and surprisingly they weren't sad, they gave added heat to this experience. He kissed her, fiercely, wrapping himself around her until there was no space between them. She pushed him back down onto the bed, on his back. She spread his legs, then settled herself on her knees in front of him.

"Don't you want me on my stomach?" said Kane, confused.

"No. I want to look at you while I fuck you."

Fuck, fuck, and fuck again. Kane had not been expecting this. His cock twitched, and heat flushed through his whole body. He wanted this, he realised, more than he'd have thought possible. He breathed heavily, and Abby leant over him, pressed kisses on his nipples, over his chest, down to his cock. She took it in her mouth, sucked it a few times until Kane was moaning with pleasure. He could feel the tip of her cock between his thighs, nudging his ass. Abby opened the lube again, covered her fingers in it and slipped them inside him again. They went in easily, because he was still open from before, and everything she had said and done since then had only made him more ready. She stretched him again with her fingers, and then she withdrew them, and squeezed lube onto her cock.

She looked at him, an apprehensive look on her face for the first time that evening. Kane nodded, and she smiled.

"Bend your knees," she said, and Kane did as she asked.

She took hold of her cock, and he felt it nudging him again, the tip of it pushing against him, trying to gain entrance. He took deep breaths, tried to relax, tried to imagine opening up to her, how it would feel to have her inside him. She was watching him, her brown eyes dark, the pupils wide. He held her gaze.

"Trust me," she whispered.

"I do," he said, and then she thrust forward with greater intent and he felt heat and friction as she entered him. Abby let out a moan as though she was the one being penetrated. She only went in an inch, and then she came almost all the way out, and then back in again, all the while watching him, seeking his reaction. Kane smiled so that she would know he was okay, and she pushed again. Each time she withdrew she slid further in on the return, and Kane was stretched and filled. His ass was on fire, but it was a good heat; it flowed through his limbs with every stroke she made. On the last thrust she slid all the way in, her pubis bumping against his ass. She didn't move, just sat there on her knees with her cock all the way inside him, her mouth slightly open as she let out a deep sigh, her eyes burning a hole in him her gaze was so piercing.

"Fuck, fuck," said Kane.

"Alright?"

"Yes, fuck, oh, Abby."

"I'm going to move faster now," she said.

"Yes, okay."

She put her hands on his inner thighs for support and moved her hips in a rhythm that was anything but smooth. "I can't quite get the hang of this," she said after a minute of stuttering thrusts.

"Just take your time, slow down, your body knows what to do if you don't think too much."

"Okay." She slowed her pace, screwed her face up as she concentrated on finding a rhythm. Kane lay back and watched her. Her breasts were bouncing with every stroke, her hands gripping his legs as she made a supreme effort to hold herself in place. His heart was filled with an emotion so powerful he could hardly describe it. She was beautiful, intense, determined, and so fucking hot. How had they ever got from their angry, hateful exchanges to this?

Abby gradually found a more graceful way to move her hips and she fucked him with earnest, hitting that sweet spot inside Kane that was making him cry out with her every thrust the pleasure was so great. He took hold of his cock, stroked it to the metre of her thrusts. He broke out in a sweat, the orgasm that was building inside him was so intense, waves that started in his ass, accentuated by her cock as it moved within him. The pulses became stronger and his ass was gripping her, although he knew she wouldn't be able to feel it.

"You feel so good, Abby, God," he cried, and he grasped her arm with one hand as he came in great spurts, his body shaking with the force of his orgasm. Everything went black, and when he came around, Abby had withdrawn from him and she was sitting back on her heels, a broad smile on her face. Kane's ass was throbbing, a pleasurable series of pulses still coursing through him.

"It was good, yes?" she said.

"It was. I can't even describe it, Abby. Wow."

She crawled up the bed and into his arms. Kane lay still, trying to get his breath back, thinking over the whole experience.

"I'm glad," she said, and she put her head on his chest.

"Wait," said Kane, as he realised something he should have thought about earlier.

"What?"

"What about you? You haven't…. We've only concentrated on me."

"Oh, don't worry about me," she said, and he could feel her smile into his chest. "I had a very nice orgasm from the base of the cock rubbing against me. You were just too far gone to notice."

Kane laughed, and kissed her head. "Thank you," he said.

"You're welcome. Thank you for trusting me, for letting me do it."

"Is it something you've always wanted to do?"

"I've always wondered what it would be like, yes."

"But you never had the chance before now?"

"No." Abby burrowed further into him, her arm wrapped tightly around his chest. She was still wearing the cock and it was a heavy weight against Kane's thigh. He thought about her words; clearly she had not been able to broach this subject with Jake, or he had refused to do it.

"Was it what you expected?"

"It was better than I expected. It was amazing, and beautiful! You are amazing." She kissed his chest. "It was harder to move my hips consistently than I thought it would be. It didn't feel natural at all, and so tiring!"

"Yes! Now you know why we always fall asleep straight after sex."

"That's because you release prolactin when you ejaculate, which makes you sleepy."

Kane laughed. "That's one reason, maybe." He stroked her arm. "Would you like it done to you someday, what you just did to me?"

Abby lifted her head so she could look at him. "Would you?"

"If you wanted me to."

She laid her head back down. "I don't know. For now I'm happy with what we did. I'm very proud of my achievement, in every way."

"So you should be. Those hours spent studying engineering have definitely paid off."

Her laugh rumbled against his chest, and Kane held her close before drifting off to sleep, his ass still throbbing, his heart full.