Training Modesty in our Daughters - Is Frozen "Sexualizing" or Sexual Sin?

Young children are increasingly being sexualized by films like Frozen, Cuties, etc., but what is the real sin of it? Does the Bible really condemn pre-marital sexuality? What is the focal point we present for our daughters, when it comes to presentation?  The world trains women in the Proverbs 5 and Proverbs 7 mode, but our focus is Godward, not man-ward or self-ward.