Any writers want to try out one of my fantasies?

My girlfriend lives in a three-room apartment at college. Her two beautiful roommates hear us having sex all the time, and they also know I'm somewhat submissive. After a while, they get tired of listening to the two of us and decide to just take what they want from me. Of course, when my girlfriend finds out, she's into the idea of them using me.

If anybody is interested, let me know. I'll tell you about myself, because I'd naturally like to be the main character. I'm just not the greatest writer.

(I'm not much into cbt or taking anything in my back, but hey, I'm open.)