Tyler has been married for 5 years. He and his wife have fre…

Tyler has been married for 5 years. He and his wife have frequently engaged in role play during sex, though for the past 7 months Tyler has been increasingly aroused by engaging in role play that involves whipping, tying up, and biting his wife. His wife is also aroused by this role play behavior and is accepting and consenting of being “punished” during sex. What disorder does Tyler have?