I was with my ex. I pretty much knew she was cheating but lacked any solid evidence. So, I called into work and didn't tell her. Drove a safe distance away, parked the car and walked back. Found a good hiding spot with a wide view. After a while, a guy shows up. I watch through windows. In short order she's sucking him, then they get undressed and find their way to bedroom. I thought about walking in an d all that, BUT, I'm rock hard. Well, I rub 1 out while watching them fuck. Didn't take long for me to cum. Only thing, I'm not getting soft. I'm still watching him fuck her bare. I start jacking off again. He breeds her and I cum even harder the second time. It took a while to go down.
I didn't say anything to her. Instead watched many more times.