My theory: Women aren’t supposed to enjoy sex because if they did, some men would have to put forth more effort in bed than they want to, or admit they don’t know everything about sex and ask for directions.
This is where I admittedly envy men sometimes. They have it so damn simple. Insert, move, ET VOILA! ORGASM!
But then again, from what I understand (and can only guess at, since I am not a man and haven’t experienced what they experience), the payoff for women is a hell of a lot better ;)