Movie: Scary Movie (2000)
Like its primary inspirational source, Wes Craven's slasher flick Scream, the Wayans Brothers-overseen 2000 comedy Scary Movie adheres to the old horror movie rule that "final girls" be innocent, sweet virgins. Thus, Cindy Campbell (Anna Faris) has never gotten it on with a man. Until Scary Movie's final act, during which she finally lets boyfriend Bobby (Jon Abrahams) tap that ass.
Before he can lay the pipe, though, Bobby has to contend with all the byproducts of never exposing one's private region. Her massive hill of unshaved pubic hair requires him to use a weed-whacker. Going down on her leaves his mouth filled with hair, causing him to gag.
Then things get exceedingly freaky, with Cindy talking dirty, growling, and riding Bobby so hard that his enormous ejaculation deflates him like a popped blow-up doll, his super-sperm forming a geyser and pinning Cindy to the ceiling.