Law & Order: Special Victims Unit: Season 9, Episode 3

Impulsive

Sarah Trent (Melissa Joan Hart) is a high school teacher, suspected of statutorily raping her student, Shane Mills (played by Kyle Gallner), after he is diagnosed with gonorrhea. Sarah claims that Shane actually raped her. The team finds that Shane has a brain disorder making him obsessed with sex (he hires prostitutes, photoshops scantily-clad women and masturbates with high frequency) and he confesses to raping his teacher. Shane is given another chance and is sent to a rehabilitation clinic, but the situation quickly changes gears when Shane himself is raped in the clinic.