I have been happily married for twelve years. I am forty-one and she is thirty-eight. My wife is beautiful, and the sex has always been great with her. The only problem was for some reason, just me having sex with my wife just wasn’t enough. For some reason, I have always had this fantasy of watching her have sex with another man. Just the mere thought of this happening would give me a raging erection. Any time I masturba...