This is definately one of those tricky question that if a woman asker her SO, he would never give the right answer!
I want to say no, but when it came down to it, in the passion of a moment, I don't know how I would react. Unfortunately as a man, I just might end up saying yes, and I'm not sure if that is a behavior based on the social structure that men grow up in or just the libido of a man rising to the occasion. (no pun intended)
