What causes pedophilia, can it be explained? Paraphillias are abnormal expressions of sexuality. It becomes a problem If a person acts on these fantasies leading to marked distress to one self and threatening to the community at large.  Paraphilias include pedophilia, frotteurism, voyeurism, exhibitionism, sexual masochism and tranvestic fetish.  Paraphilic behavior peaks between ages of … More Pedophilia