My wife and I got married when I was 20-years-old and had dated since High School. Before we were married she dated a guy for over two years. During sex she had confessed that he had a huge dick. I knew that during the past couple of years she was still talking to him and when I worked at night during the summer she would go to his parents house to swim.
One night I was looking over the fence before I picked her up and she was kissing him. I got an instant hard on and started to jerk off. I shot my load in the grass then went round to pick her up. As soon as I got her into the car I kissed her and told her I loved her. A couple of days later as we were having sex I confessed I wanted to masterbate as I watched her fuck him. We had him over for dinner and after dinner they sat on the sofa. I said to her I dare you to fuck him. Sitting on the floor I watched them go at it as I jerked off. It was the best jack of my life that night.