So the whole discussion about body count and how soon a woman sleeps with a man pretty much comes down to the idea that men want a woman to be very sexual for him and only him. I've heard it said that men want a woman to be a whore for him but he wants her to have never been a whore for any other man before him. I think there is some truth to that. It got me thinking and led to this question.

What is that thing for women? It's clear that it isn't sex. So what is it? What is the thing that women want a man to do with/to/for her. But, she wants to be the ONLY woman that he has ever done that with/to/for?