The spent condom is wrapped in a tissue in a second, and thrown carelessly beside where your head is pushed into the pillow, seed darkening the white paper as it leaks out. You feel the thick, uncut, and cream-coated head slide up and down your labia before the still-leaking cock slides down into your unprotected pussy.
Before you can complain I breathe in a lustful whisper "Just cleaning myself off, you'll be fine..." But the insertion becomes a thrust, and then another, and then another. The hand on your lower back slides around your hips to possessively cover your lower stomach as I take you again. You know how this is going to end. And after a few weeks of our clandestine routine, did you really want me to stop? Or were you starting to crave that forbidden rush. The risk. The insanity of what we were doing, for such a brief pleasure.
My mouth closes hard on your neck. "When are you going to admit you want me more?" I growl. I push deeper, my cock kneading your womb, cruelly forced against your cervix. Maybe the first time I was like this it hurt. But now? Was that pleasure? "Come on. Ask for it, tonight."

~

You'd been staying with your boyfriend's family for the summer, and it was just a simple mistake the first night you drunkenly slipped into his room a week in. Thing was - it wasn't the right bedroom. You slid into bed with his older stepbrother, and by the time you realized your error, he already had his mouth on your clit. Every other night or so since, he'd slipped into your guest room and taken you, or made a point to insist you came to his room. What's worse is on top of it all, you're pretty sure he caught feelings. At first you were able to insist on protection but lately it was like something broke between the two of you. Every time you cheated with him it was as if he was trying to claim you for himself. Forcing you to cum over and over while trying to stifle your pleasured voice. Filling you with cum again and again. Talking you into breaking up with his brother, asking if you'd come stay with him when the summer ended.

Even if you're having fun, your riskiest week is coming up. Surely you should at least try to reign things in....

~

Hope you liked the prompt! just a bit of an idea for an RP about cheating, impregnation risk and forbidden romance. I've tried to avoid writing for your character in the prompt and I'm very open to ideas about the specifics and dynamics of the RP. Look forward to your chats or DMs!