My girlfriend riding my penis

My girlfriend's friend came over to the house and caught me in the bedroom. She saw me fucking my girlfriend and wanted to join in. I was more than happy to oblige. She eagerly climbed on top of me, her pussy sliding down my cock. The sight of her riding me, her juicy pussy bouncing up and down, was enough to drive me wild. Her moans filled the room as she rode me harder and harder. I could feel her tight pussy squeezing my cock, driving me closer and closer to orgasm. When she finally rode me to orgasm, her pussy milking my cock, I knew I had made the right decision. Riding my cock had left her completely satisfied and me completely drained. It was a perfect end to a perfect day.