Clayton was a black guy, not that it was significant at the time. Karen, my wife, got on well with him and he visited regularly and they would spend hours in bed. Then things started to change. Clayton asked Karen to make sure I was home next time he visited as he wanted me to take pics of them fucking. I found it very exciting watching and recording them on, what was then, a Polaroid camera. What surprised me was the level of submission Clayton drew out of my, normally, quite Dom Wife. She became very compliant with him, doing exactly what he told her. The sight of her rimming him and then gagging on his cock as he held her head and called her his slut was very erotic. When he fucked her, she was in heaven. She would be very vocal, telling him how good his cock felt and she would cum multiple times before he finally emptied his balls inside her. It was expected that I would be present now. Sometimes to take pics, but other times, just to be in the house while they fucked. He never rushed off afterwards, staying for a coffee and a chat for a good hour before he left. Karen had become more submissive with him and on one occasion, just before he left, he told her to phone him the following day as he had something to discuss with her. That’s when it all changed again.