We have a friend we invite over pretty regularly, he's a guy we enjoy sexy fun with, he's not our bull.
I like watching them he likes watching us.
Yes I beat off watching them, he strokes watching us.
Twice I've cum while stroking while I was watching them. They were getting it on pretty hot, I was beating off, I felt it coming, I stopped but it was too late, I came. It wasn't good cum at all. They didn't notice.
The other time, same deal they were going at it really hot. I was stroking slow, he started to cum in her, I had to let it go. I just went with it and shot off on my stomach. They did see it but no on said anything.
I've learned to be careful.