Very true, she is probably just curious.... and would not act on it. Also, it may be a means of satisfying curiosity without cheating because she truly wants to be with you yet has this overwhelming curiosity that has to be met somehow... kind of like trying to get the inner voice to quiet down because the relationship you are in is totally awesome and you do love the person... if that makes any sense. I am speaking from experience. Good luck, it's a good thing she opened up and told you about this.... it is the ONE THING I have been embarassed to tell my girlfriend about (and I tell her absolutely every other thing most people would be embarassed about...) anyway, good luck.