Collaborative sex stories let us write the plot together

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

The next morning, while your girlfriend sleeps, you and her best friend get rough in the shower.

“Oh my fucking god, that’s it! Fill me up with that fucking dick! I want it so bad!” Monica shouts. She wraps her legs around you as you fuck her, keeping you inside her. It is only a matter of time before she screams, “I’m cumming!” as your cock finally brings her to orgasm.

You keep fucking her as she cums while warm water splashes on her body, making your girlfriend’s best friend look so sexy as she screams your name.

When her orgasm finishes, you push her up against the wall and slap her ass. Then you quickly get to work and fuck her against the shower wall. Monica is screaming now. Truly screaming, not caring if Rachel wakes up. She wants your girlfriend to see you fuck her.

Her moans only get louder as she feels yet another orgasm building. Though this time, she doesn’t have time to warn you as she cums.

“Are you fucking serious, Monica?” a familiar voice says.

It’s your girlfriend. How do you explain this to her?