Mark Greif has something about this. As I wrote a while back he argues
the sex revolution of the 60s and 70s did not liberate sex but led to a liberalization of sex. He argues we will be able to talk about sex liberation only when it is thought of as we would a coffee date. On the subject of pedophilia he asks why the allure in youth when all the adults who engage in it were once youth?
His book Against Everything is quite a good read