The reason for my desires are a combination of things. Firstly to know that she are turning on another man is very hot, that they want to sleep with her is hot too. But the ultimate thing in my mind - believe me it is not for my personal gratification (Ideally I do not want to watch - I want this just for her alone with a guy) I am extremely turned on by the thought that she is enjoying pleasure to the extreme and being really kinky getting as carried away with her sexuallity as she possibly can. And I guess the thing I come to is getting all hot and sticky with a guy. Also I have a genuine desire for her to experience sex to the full and in any kinky way she can. It is quite an overwielming feeling but I want her to experience that if it is something that she wants. If she does not want to do it that is fine, but I would really like her to experience it.