Collaborative sex stories let us write the plot together

(Her Secret Fantasy, continued by Erotica...)

“Alright then…” You make your voice steel hard. “You want to fuck another man while I’m watching, do you?”

Rachel quivers under your steel voice, “y-yes.”

“So basically, you’ll cheat on me?”

“Pre-pretty much, yes.”

“What sort of girl would you like to watch me fuck?” you ask casually.

“Sorry, what?” But your girlfriend knows exactly what you just said.

“You heard me. You cheat on me, I cheat on you. In fact, you can’t even decide which girl I’ll choose, because I’ve already decided!” you say rapidly.

“Oh, really?” your girlfriend says, her voice full of lust. “Who’s the lucky girl then you have chosen then?”

You rack your brain rapidly, before coming to a swift decision.