Teeth (2007)

Synopsis
A high school student struggling to suppress her budding sexuality makes a startling discovery about her womanhood after becoming the victim of sexual violence in director Michael Lichtentenstein's semi-surreal exploration of the vagina dentate myth. Dawn (Jess Weixler) is a proud virgin and the most active member of her local chastity group. Though she struggles with every ounce of her willpower to resist the pleasures of the flesh, Dawn finds her noble efforts to remain chaste repeatedly challenged by her disturbed step-brother Brad - whose provocative advances are becoming increasingly difficult to resist. When Dawn is sexually assaulted and discovers that her vagina actually has teeth, she struggles to comprehend her anatomical anomaly while experiencing both the benefits and drawbacks of this strange new revelation. ~ Jason Buchanan, All Movie Guide