Alright I know I will get downvoted for this, but I believe that women have evolved to physically dislike sex. Physiologically, the only thing that contradicts my belief is the clitoris.
If men have nipples for no reason, than where is the evidence that clitorises aren't just the female version of male nipples? Women have sensitive nipples to encourage breastfeeding. Men have sensitive nipples because of how embryonic development works.
Men have sensitive penises because it encourages sex. My theory postulates that women have clitorises because of how embryonic development works. The body can't just destroy all those nerves, so they go somewhere else: away from the vagina, under a layer of skin that has evolved to prevent women from enjoying sex.
Is this physiologically possible? Maybe this isn't the most appropriate place to ask, but I figured it would garner the most serious answers. Please feel free to ask me questions or point out inconsistencies in my theory.
Also I have a few theories that explain why women may have evolved to dislike sex. The main one is that for the majority of human evolution, most of the sex and consequent conceptions would be from rape, or at least pseudo-rape. If women were to actively pursue sex, and have babies every 9 months, that would be harmful to the group as a whole and would be selected against evolutionarily.
Men have also evolved a trait that prevents a detrimental ratio of children to adults: they are repulsed by women who have been recently pregnant and are much more attracted to women who show no signs of recent pregnancy. This manifests in men's seemingly irrational attraction to slim waists, innie belly buttons, taut, toned stomach skin, and "innie" vaginas.
