Are you worried about how this could affect your friendship with your friend? I ask because I've thought about doing the same thing with my wife and best friend. I'm 95% sure she would go through with it. She's admitted to me that she physically attracted to him, and we've discussed me letting her have sex with other men. She said she could only ever do it with someone she could completely trust, which is what led me to consider letting my best friend be the guy I let fuck my wife. My biggest concern is having jealous feelings afterwards, especially if it becomes a regular thing. What if he's a better fuck than I am? What if my wife starts to prefer sex with him over me? My wife is an amazing woman and I'm sure she would never admit it if she did, but I think that would still be a concern in the back of my mind.

How did you approach the subject with your friend and wife?