I discovered my wife is having an affair with her best friend's husband. I found out by periodically checking my wife's phone before she'd erase her texts. My wife did't know that I was aware of her affair and when I learned (through another text) that her lover was going to come over one morning after I left for work I decided to secretly return to the house after I'd left and hide in the closet in our daughter's room (she was at school) to catch them in the act. I was going to wait until he had left before confronting my wife. I was really angry and hurt.
Anyway, what I NEVER NEVER expected was that I would get so aroused by watching my wife get fucked by her best friend's husband. Hiding in the closet in my daughter's room I could see what was happening in our bedroom through our closet door mirrors. As soon as my wife started to undress before Mark I got hard - it totally freaked me out. Once my wife was naked she dropped to her knees and began sucking Mark's cock - something she would NEVER do for me. Once they were in bed with Mark atop my wife who had her legs spread wide, I heard my wife have an orgasm for the first time in my life. In fact, she had two orgasms and at the second orgasm, when she was moaning uncontrollably "Mark I love you I love you so much!" I came in my pants - I was soo turned on hearing my wife say that.
To make a long story short I realize that as bummed out as I am about my wife being unfaithful and in love with another man who satisfies her in a way I never did, I'm way too turned on to want to put an end to it. :-(