Frotteurism and Pedophilia.

Frotteurism is characterized by either intense sexually arousing fantasies, urges, or behaviors in which the individual touches or rubs against a non-consenting person in a sexual manner. This often occurs in somewhat conspicuous situations such as on a crowded bus or subway. The person generally disappears into a throng of people. Frotteurism usually begins in adolescence and the abnormal behavior tends to decrease when the man reaches his late twenties. To be considered diagnosable, according …

…other children. Predatory pedophiles may use force and threaten to physically harm the children or their pets if they tell about the sexual abuse. A large percentage of people with this disorder were sexually abused as children, although the majority of adults who were abused do not develop pedophilia or pedophilic behaviors. Some argue pedophilia results from feelings of inadequacy with same-age peers, and therefore transfer their sexual urges to children. (http://www.allpsych.com)