I try not to gear the advice I give to one specific gender, but I thought that everyone might benefit if I were as direct and pointed as possible.
If a woman agrees to have sex with you, chances are she likes you and you
should try to be nice to someone who likes you. Or at least polite. If she agrees
to have sex with you more than once, like maybe many times over the course of a
couple of weeks, she really, really likes you and her feelings may get hurt when
she reasonably expects that you will treat her as if you like her, too. After
all, if you liked her enough to have sex with her, you should like her enough to
return her calls or give her an explanation for why you won't. She deserves
that. Pretty much everyone deserves that, but especially everyone you've seen
naked.
Don't have sex with him until you're sure you can trust him, unless you're just having sex to fulfill a primal desire and you haven't been touched in months and you don't have strong feelings either way and there's no possible way that he could hurt whatever feelings you might have.
