Everyone, I think, has a spot on the opposite (or same) sex that they find really sexy. Aside from the obvious things like breasts, butt, penis, etc., what's your obscure spot that you find tantalizing on any partner? For me it's a guys shoulders/upper arms. Especially when my boyfriend has his arms above his head...mmm :] For him, it's the back of my neck; he got upset when I was considering a tattoo there. What's yours?