When the wife and I have sex it's fairly common we will tell each other short stories or even fantasies as we do it. A few nights ago her story had a very decidedly gay aspect to it, her story was of me sucking a guy's cock while she watched, then both of us taking turns on her.

Afterwards we were talking about it, and she said she has always had a fantasy of seeing guys sucking each other, then doing her. She has even had dreams of it that resulted in her awakening during a climax.

I have not been able to get this out of my mind. When I think of it, I instantly get a raging hard-on to the point, at times, I end up wanking to completion and it is almost instantaneous.

I have had the thought, or fantasy, for a long time of watching her getting fucked by another guy. I've also found myself looking at porn watching a girl giving a guy a good suck and wondering what it would be like.