Apparently you didn't read my post carefully, because I said "innate or otherwise." Your point would be about the otherwise bit.
However, since you wanted to argue this when I was specifically avoiding it, I would point out that females are the sex more reluctant to mate in almost all species, with the exception of a few species that prove the rule. It has to do with the expected costs of mating. Females bear most of the cost of child bearing in almost all species, so they are also a bit more choosy as to how often and to whom they mate with.
I would point out that females are the sex more reluctant to mate in almost all species
I always have difficulty with people making points such as this; because we have such drastic differences from all other species that make much of the argument moot.
I think the real reason Women read porn and men watch it is simply because of past gender inequality that still persists. Men could look at porn, it was "dirty" and "naughty", but it was a male world so it got accepted. Women "hacked" around it by reading/writing romance and erotica.
I guess society has just persisted that social structure into the modern day.
However, since you wanted to argue this when I was specifically avoiding it, I would point out that females are the sex more reluctant to mate in almost all species, with the exception of a few species that prove the rule. It has to do with the expected costs of mating. Females bear most of the cost of child bearing in almost all species, so they are also a bit more choosy as to how often and to whom they mate with.