Mark: I had always had a thing about Jane with another man right from the start of our relationship.
She was, and still is, very attractive and had had a few relationships before she met me.
I liked to lay back and listen to him talking about a man with a much bigger cock taking me.
It made for some quite earth shattering orgasms for me as well as Mark.
Although I had to be careful as far as he was concerned; he could cum very quickly with me stroking his cock and talking about sex with another man. I suppose out of curiosity because of the situation with Mark.
It is good to know that men still find you are attractive even if you are spoken for.
I have had a few opportunities to take things further but I had always left them at the 'fantasy' stage.
I had had only two serious relationships so she was more sexually experienced than me.