Fuck her.

You unfasten your pants and push them down, along with your undershorts. Your cock has been hard for some time; you take it in one hand, hold Rebecca?s hips steady with the other hand, and start to guide yourself to her. When she realizes what you?re about, she reaches a hand between her thighs to guide you. A little fumbling, a little wiggle, and when you feel the head of your cock entering her, you push.

?OHhhh-? She starts to call out, but quiets herself quickly as she remembers where you are. Her pussy is tight and you are only able to slide yourself into her a couple of inches the first time, but she?s very wet, and after you pull back and push forward a second time, you?re able to get most of yourself into her. On the third thrust your cock is nice and slippery and it goes all the way in, and Rebecca groans as quietly as she is able to.

You hold still for a moment, enjoying the sensation of her warm, wet cunt throbbing around you. You?re sure you could come just like this, without moving a muscle, but Rebecca draws her hips away from you, then pushes back again, forcing you into her and reminding you what you need to be doing.

You start to thrust into her, slowly at first, and she matches you with the rocking motion of her own hips. Her thighs and yours are sticky and wet, and your hands are sweaty on her hips. You find your thrusts quickening of their own accord. Soon the slapping sound of your skin against hers is unmistakable, though if anyone is nearby to hear, you really don?t care any more.

?Oh god,? she says suddenly. ?Oh god ... oh, I?m going to ... uhnnn ...?

With that, she slams her hips back against you, and her cunt clenches around you. As you drive into her, again and again, you hear a series of grunts and frantic gasps from under the desk. The sounds of her orgasm and the feel of her tightness around your cock is too much for you, and you come as well, forcing yourself as deep as you can as you burst and spurt within her.

The noises you both make are undignified and unintelligible, but in your ears, it?s a symphony. At some point you find that you have both come to a rest, panting and exhausted. She is warm and soft around your spent cock, and there is nowhere else you?d like to be at this moment.