Then that would be the result of inadequate parenting. Kids at that age have been searching out forbidden things since time began. It is our job as parents to give them a sound base of what is right and wrong, the behavior expected of them, and good old fashioned common sense (that which is severely lacking in todays society). Then when they do come across things like pornography, and violence in film, or even plain stupidity in entertainment media, they know the difference between what is appropriate behavior and what is not. You also forget, or were unaware, that rape is an act of violence, with the sole purpose of hurting as deeply as possible. Other than the mechanics, it has nothing to do with sex.