Playboy playmate KARISSA SHANNON accuses Spencer Pratt of stealing her video camera that held the now-notorious sex tape featuring herself and Heidi Montag.

RadarOnline spoke to  Karissa with boyfriend ex-Smallville star Sam Jones III in West Hollywood as she confirmed, "There is a sex tape of me and Heidi," emphasizing Spencer was not present when they shot it.

"It’s just me and Heidi, that’s it," she said.

"Me and Heidi were hanging out at her house in Malibu and he came over to pick up some stuff and he ‘accidentally’ took my camera," Karissa revealed

"I talk to Heidi every single day and I tried to be there for her when she was going through her divorce, but now it’s starting to affect my life. Spencer had no right to steal my camera. There are other things on there that I don’t want to come out, including the video of me and Heidi."

SEE Karissa’s sex tape video interview at