Compulsive sexual behaviour disorder
Compulsive sexual behaviour disorder (CSBD) is a psychiatric disorder which manifests as a pattern of behavior involving intense preoccupation with sexual fantasies and behaviours that cause significant levels of mental distress, cannot be voluntarily curtailed, and risk or cause harm to oneself or others. This disorder can also cause impairment in social, occupational, personal, or other important functions.
Source: Wikipedia — Compulsive sexual behaviour disorder (CC BY-SA 4.0)