Behind Closed Doors (book)

Behind Closed Doors: Horrible, Filthy, Vile, Disgusting, Inappropriate, Off-Model Drawings by the Crew of a Popular Cartoon Show is an unreleased book of pornographic drawings of SpongeBob SquarePants characters created by storyboard artists for Nickelodeon in the early 2000s. First publicly mentioned by SpongeBob storyboarder Kent Osborne in a 2012 Hogan's Alley interview, excerpts from Behind Closed Doors were leaked online in July 2023 after an anonymous former Nickelodeon employee contacted YouTuber LSuperSonicQ with information about and a limited selection of drawings from the book.

Source: Wikipedia — Behind Closed Doors (book) (CC BY-SA 4.0)