I've had many really hot girlfriends who I secretly wanted to see being fucked by someone else. Strange desire isn't it? But tho I'm not the jealous type, I do believe in reciprocity. I was always waiting for the right situation to arise - an attractive enough good friend with a hot GF or wife I wanted to fuck. The only time the opportunity presented itself and I felt confident enough to suggest a swap, my friend was shocked! (I then went on to screw his GF anyway, but he didn't get anything out of it.

) I suppose I should have tried some kind of craigslist group, but the ideal situation seems to me to be a group of friends with hot women all sharing each others' lovers.
But then that may be the kind of fantasy that never works out in the real world.