Sorry Jason, I really don't agree with anything you've said. I think it has more to do with individual sex drive, and with adhering to social norms. A woman who is sexually active and has no real desire to have a relationship with the man she sleeps with beyond purely sex is labelled a slut, and labelled hard; it colours all other aspects of her life. Most women learn very early on when they first become sexually active that to be seen to be a sexual being is to be catagorised as a certain type of person, so they learn very quickly to disguise their behaviour. Men, on the other hand, are not only praised and feted if they are sexually promiscuous, especially when they are young and just starting to be sexually active, but they are actively punished for
not being sexual beings first and emotional beings second or not at all.
I remember the hell a male high school friend of mine went through because he told his mate that he and his girlfriend had had sex once, and had decided that they weren't emotionally ready for it, so had gone back to hugging and kissing. They were 16 years old, and he was called everything under the sun from gay to impotent to being an idiot; he was openly mocked, physically harrased and under constant presure to have sex with his girlfriend again, despite the fact that neither of them wanted it or needed it at the time. And his girlfriend was teased, called a slut, a whore, had numerous
friends of her boyfriend making very crude advances to her and when she turned them down, she got labelled a cock tease and a lesbian.
She'd had sex ONCE with her boyfriend of 10 months.
I still know him; he's married with two kids, and according to his wife, who is a good friend of mine, still prefers intimacy to sex. But he went through a period in his late teens and early twenties of fucking any woman who said yes and then walking away after a few weeks before anyone was allowed to get close. I challenged him about it once, and nearly bit his head off when he said that any woman who says yes to sex before they've been going out for three months wasn't someone he wanted as a long term girlfriend. He'd been taught well, men should screw around, but he still believed that a real relationship wasn't based on sex but on emotions, and so he treated any sexually active woman like dirt and eventually married the girl who said 'no'. And I've met a LOT of men like that; sleep with them and get treated like shit, say no and get treated like gold. Which in turn educates women how to behave; have a high sex drive and be sexually active and get treated like shit, act like you have no sex drive and get treated well. Subliminate your desire for sex into a more socially acceptable desire for intimacy and you are ok.
I don't believe that men enjoy sex more than women, in fact I often think the opposite; most men I know are surprised and envious to find out that women have several different types of orgasm, and I've been involved with one man who was astonished when something we did differently gave him a very different type of orgasm. He couldn't get over how different it was, and I had to explain several times to him that yes, I understood, it wasn't that it was better or worse, but it was great and it was different and he didn't have to keep telling me about it, I'd been experiencing the same thing for well over 10 years at that point. The men I've known who orgasm, roll over and go to sleep or get up to watch TV or go play sport are the ones with low sex drive; the ones with high sex drive are the ones who afterwards keep kissing and cuddling because they want more (and usually get it
)
And an interesting little bit of info for you - studies have shown that woman are a) more stimulated and physically aroused by sexual visuals than men are; b) 'check out' and look at men more than men look at women; c) think about sex roughly equally to men. The difference is, women and men both lie about those things, and women are more discrete about how they look at men.
Why treat life as a journey to the grave with the intention of arriving in an attractive & well-preserved body? Get there by skidding in sideways, a glass of wine in one hand, chocolate in the other, body totally worn out, screaming WOOHOO! What a ride!
ruled by nuts. 
I'm also getting tired of hearing him say I'm going through menopause. I'm not- I'm going through peri-menopause. There IS a difference. Sheesh. Guys don't understand. 
