What does Frotteurism involve?

Frotteurism is a paraphilic disorder that specifically involves the act of touching and rubbing against non-consenting individuals, typically in crowded public places. This behavior is characterized by a lack of consent from the other person involved, making it a form of sexual assault. It often occurs in situations where people are in close proximity, such as on public transportation or at crowded events, allowing the frotteur to engage in these actions without being easily detected.

The other options refer to distinct behaviors or paraphilic disorders. Watching unsuspecting individuals undress is known as voyeurism, which involves observing others for sexual gratification without their knowledge or consent. Inflicting harm on oneself can relate to self-injury or self-harm, which is entirely different from the non-consensual acts involved in frotteurism. Finally, consensual sexual activity involves mutual agreement and participation from both parties, which is fundamentally different from the coercive nature of frotteurism, where one party does not provide consent.