One of my favourite fantasy which I still stoke off too. Is a guy I worked with many years ago we had a mutual dislike for each other, my wife knew him she thought he was ok. The thought of him having her. Been inside her, kissing and caressing her body knowing he has had my wife in all the different sexual play. Leaving hid DNA in her. I can can see him in my mind smiling knowing he has fucked my wife drives me crazy and given the chance now I would make sure she fucked him.