Devil in the Flesh 2 (2000)

Teacher's Pet (2000) is actually Devil in the Flesh 2, but instead of Rose McGowan, the original fleshy beast, Jodi Lynn O'Keefe is the sequel's horny one. She escapes from the Laughlin Institute for the Criminally Insane and is picked up by rich kid Susan Lancaster on her way to Holmsby College in San Carlos. Jodi promptly murders Susan and assumes her identity, ending up developing a deadly crush on her creative writing professor. To keep their prose purple, Jodi kills anyone she sees as getting between them, which ends up making a lot of dead men on campus. While Jodi is skingy, even in her own erotic dream sequence, Katherine Kendall shows off her rack while getting it on with the perverted prof. This teacher's pet is into some heavy petting.