>while a woman just has to approach a guy and say "fuck me" and he'll do it.

Really? Are you ready to fuck any woman that exists? If so, you are a superman, and you should get a medal for your social services. As for myself, I can see a large panel of women I wouldn't want to have intercourse with (actually, for quite a few I would even fail to have an erection, my horrified penis going into retraction-get-me-out-of-here mode).