A fictional pornographic film title mentioned on Comedy Central’s South Park, specifically the episode “The Return of the Fellowship of the Ring to the Two Towers,” which originally aired in the US on November 13, 2002.
The film is significant to the plot of the episode for two reasons: first, the movie is inadvertently placed in the box for The Lord of the Rings and given to Stan, Kyle, and Cartman to take to Butters’ house. Second, the film is significant because of its questionable content.
As it turns out, this isn’t just any porno tape. Indeed, according to Kyle’s dad, Back Door Sluts 9 “is the single most vile, twisted, dark piece of porn ever made.”
Butters’ father further describes it thus: “Back Door Sluts 9 makes Crotch Capers 3 look like Naughty Nurses 2!”