the main character in the movie Teeth has developed a special power that allows her to survive high school. Deep inside her vagina, Dawn has a set of shark’s teeth that will bite off anything she doesn’t want in there. [...] But Dawn’s “adaptation,” as she calls it, isn’t just a grossout thrill. It’s the perfect vehicle for expressing the emotional truth of teenage sexual awakening. (Spoilers and dick chomping ahead.)
Dawn’s mutant puss is her only source of power in the small, conservative town where she lives beneath a nuclear power plant and goes to a school where concerned parents have put giant gold stickers over pictures of the female anatomy in her textbook. Active in her local church chastity club, where she gives passionate speeches about virginity being a “gift,” Dawn is a sexual innocent. And sexually repressed.
Inevitably, when Dawn starts to fall off the virginity wagon she does it with a guy who turns out to be a jerk. Instead of the heavy petting she’s ready for, he tries to go all the way. And when Dawn resists, he knocks her head against some rocks and proceeds to have his way with her. Luckily, her puss never sleeps and we get our first glimpse of the extremely graphic results of Dawn’s evolutionary advantage.