This incident crosses over into another sexual turn on I have aside from feet. I have a fantasy of sharing my wife sexually with another man and either joining or just watching. I get very turned on by the idea of another man seeing my wife naked and experiencing her intimately like I do. My wife is aware of this fantasy and we talk about it a lot but have never actually gone through with anything yet, mainly because she's very particular about who she has sex with and would prefer to be with someone she's very comfortable with if it ever happens. She does do things to tease me related to that fantasy and she's come along way in getting more comfortable with the idea. I say all that to set up the following scenario which I am still incredulous actually happened. My wife and I have a very good male friend with whom we've been friends with for quite awhile. They are very comfortable with each other and flirt quite a bit and there is a little sexual chemistry between them. Both of them know the boundaries and don't cross them and do anything that's non consensual between the 3 of us. My wife and I have had sexy talk about him being the man to fulfill our fantasy and she teases me about wanting to have sex with him and he would be perfect to fulfill our fantasy and we've had lots of dirty talk about him in bed. One night he was over and we were both sitting on the couch playing video games when my wife got home from work. She greeted us, got us some drinks and joined us in the couch. To my surprise she kicked off her shoes and put her head on my lap and her feet in his. I knew what she was up to immediately. This was her way of turning me on by putting her feet in our friends lap. She knows her feet are a point of sexual attraction to me. She then said how much her feet hurt and asked my friend to rub her feet, which he was more than happy to do. He started rubbing her feet over her socks. I could smell just faintly her familiar after work feet aroma. After about five minutes, she asked him to take off her socks, which he agreed to. I got instantly hard. There were my wife's sexy bare feet in the lap of another guy and his hands were all over them. He commented how soft they were and how he liked the color of her polish which was a soft pink. The whole time I pretended to act casual but I had a raging hard on. My wife at one point felt it through my pants and looked at me and smiled, fully aware of what was going on. My friend rubbed her feet for the half hour we were sitting there. I was fully hard the whole time and was never more turned on. Finally she put her feet up to his face and playfully and he just as playfully grabbed her feet and softly bit her big toe. He must have smelt her sweet aroma. Then he jokingly sucked her toe and put her feet back in his lap and got up to go to the bathroom. That ended the incident, because after he came out we decided to go grab a bite to eat. Later that night in bed my wife asked me how I liked her little foot thing earlier and told me she did it all for me. We had amazing sex that night.