This Ain't Avatar XXX (2010)

After the original events of Avatar, Jake reveals in a video log that the Na'bi has a darker side. After sexual flashbacks which show moments in the movie which purport to show what actually transpired, the film shows what occurs after the human corporation leaves Panwhora. The Na'bi turn out to be "fetish-fueled sex fiends", who have a massive orgy after the corporation leaves, and then reveal their true purpose for keeping humans in a twist ending.

Science Fiction