Shortly after I got married, a guy I knew told me that my wife was cheating on me with a black guy she had met at a bar after work. I couldn't stand the guy that told me this, so I didn't believe him at first because he was the kind of guy that liked to stir up trouble. But I couldn't stop thinking about it and would jerk off to it and think about it while I was fucking my wife. I think it embedded the idea of her cuckolding me in my mind. Years later, I finally convinced her to cuckold me openly.
About a year ago, she finally told me that she started an affair with that black guy about a month after getting back from our honeymoon, and it lasted about a year.