Doesn't this effect apply to masturbation with any kind of fantasy? This article seems to suggest that your brain innately knows what's paraphelic or not. That seems absurd. So I would think that fantasies considered "appropriate" in our society are just as well reinforced by masturbation.

And wouldn't that go for "appropriate" partnered sex as well? I wouldn't think your brain cells innately know the difference between masturbation and partnered sex.

Simple reinforcement by pleasure.

One thought, does this theory suggest that early partnered sex of the appropriate kind could keep some people from developing paraphelic obsessions?