Hi my name is John. My wife and I have been swingers for a while now and we tend to meet alot of other people. Recently we started swinging with a new couple, the woman of this couple, I am highly attracted to. I have always been pretty good in bed as fas my wife and I were concerned, but recently I discovered that I am 100 times better in bed with this other woman that I am with any other woman that I have ever had. I dont understand why, but I can go with her for hours and hours and we both enjoy ourselves and have alot of fun without ever getting tired. I usually get tired within 20 minutes with my spouse and it verys with others. But this girl that I am talking about now its like I get a natural adrenaline from her that I can't get from others. More recently we have stopped hanging out with them and have moved on. What I am trying to figure out is what it was about her that made me like superman so that I can figure out how to apply it to my normal sex life and my sex life with others. any help is greatly appreciated.