I had a friend, actually the husband of a gal I was having an affair with, that wanted to include himself in our fun when we would be camming with each other.
I knew he was a cuckold; his wife told me he had watched her fuck other guys quite a few times, it sounded like there was fun to be had, so he would participate in our conversations and observe while me and his wife masturbated for each other.
This led to him eventually asking me if I would consider having bi sex with him. I had never thought much about it, but he had a lot of experience, and I was curious, so we would have long discussions about it.
We started camming with each other, discussing fantasy and jacking off for each other. The more we did it, the nastier it would get. I'd be submissive for him since he had experience, and he would make me bend over and spread my cheeks, go ass up on the floor, lean back in my chair so it ******* my ass (and balls) from a different angle, and even take a dildo in the ass.
All the while talking nasty to me, making me admit I wanted to take his cock in my ass and mouth, and telling me all the things he wanted to do to me and what it would feel like.
It was great fun and I enjoyed it very much!