The title says or all. (Sorry about the typo)
This happened back in 2007. I had been dating this guy for about 6 months and I found out that he was fucking around behind my back. So I decided to do the same but not behind his back.
His roommate always seemed attracted to me and I convinced him to help me get back at the cheater. We decided to fuck with him on the floor and me ridding his cock at a time when we knew my ex would be coming home.
He walked in on his roommate and soon to be ex girlfriend fucking on the living room floor. I was naked and the roommate was grabbing my tits while I rode him like a mechanical bull.
My ex threw a fit and almost cried. Then he stormed out but we kept fucking till I we both came.
The humiliation of being cucked was too much for my ex and he moved out of the apartment shortly after. The roommate and I became fuck buddies for the next few months.