If your underaged daughter is acting out sexually i highly recommend questioning yourself and the people you allow around her instead of blaming media, music and the internet.
I also recommend you put aside your misogynistic mindset then decide the distinct differences between what& #39;s healthy and what& #39;s harmful.
Approaching that issue without the understanding of how sex can be a form of self harm and an unhealthy coping mechnism for dealing with something she is supressing is bound to do a lot more harm than good.