Hotwife lifestyle or cuckold lifestyle

Our journey has been so tame compared to others on here. My wife had ongoing sex with two of friends at different times. The first was when we had been married only 3 years. The next was maybe 15 years later with another good friend. I was never invited to watch or participate with either one. After a few years we met a man online from the UK who was traveling for work in the US, and it was arranged to meet him in Fargo ND for a night. When we got to the hotel room, I went into the bathroom to give them time to get started. When I came out, they were already partially undressed and kissing. They moved quickly to the bed and the rest of their clothes came off quickly. I sat there watching from a chair along the side of the bed, not knowing what to do, but I did stroke my cock to the sight and action of them already fucking. He stopped and looked at me and invited me to join them. (He obviously had experience with this) It was a night of watching and joining that I will never forget. I think if we could do it again, I might like to just watch and not join in. Listening to the sounds coming from my wife that night was simply incredible for me, as I had never seen anything like that in her. I would love to hear and see that again.