The only thing she asks for

I was getting ready, my cock was hard as i climbed on top of my wife. She was already wet, spreading her legs as an invitation. I put my manhood inside her and started to do my work. Then i felt like something hit me in the head. Everything was blurry and when i regained my vision i was laying on my back. Someone was on top of me. A man. I felt something inside my groin. It felt good as he moved. I looked closely and saw myself staring at me back with a shocked expression. I screamed in a high pitched voice.