He is characterized as indulging in numerous sexual fetishes such as BDSM, frotteurism, biastophilia, somnophilia, erotic asphyxiation, voyeurism, exhibitionism, zoophilia, and necrophilia. He also has a predilection for teen-age girls, including Peter's daughter Meg, whenever they turn 18. Following the episode "Family Goy", he develops a pornography addiction after discovering the existence of internet pornography.