Playmate Karissa Shannon's boyfriend is challenging Spencer Pratt to a cage fight-and he's pretty confident he's going to win.
"Spencer Pratt's name keeps coming up, so I talked to my girl last night and this is what we're going to do," Sam Jones III told RadarOnline.com in an exclusive video interview.
Watch the video on RadarOnline.com
Jones told us: "Spencer, I'm challenging you to a fight. We're going to do it in a cage, man to man, keep it legal and I'm going to whoop you're a**."
Jones, who says he has no doubt he'll win, told RadarOnline.com that he's already thought of a penalty for Pratt -- should he lose.
"When I win... and I'm going to win, Karissa's going to shave your head off, shave your beard off and you're going to erase the tape," he said.
Jones and Shannon were promoting their new milkshake at Millions of Milkshakes in West Hollywood on Thursday night, where they addressed the alleged sex tape between Karissa and Heidi Montag.
"You know it's unfortunate that Spencer Pratt has his own drama with his own wife but now he's trying to bring Karissa down with him so we're just trying to turn it into a positive," Jones told RadarOnline.com.
As RadarOnline.com reported exclusively, Karissa Shannon confirmed that she did make a sex tape with Heidi Montag, that the two did it themselves without Spencer and that the erratic former reality star stole Karissa's camera with the video footage.
Spencer has been flapping to the media that he plans to release the tape, which Karissa says he has no right to do.
"He had no right to steal my camera. I don't want the tape released," she said. "I'm not going to promote it and I'm sure as hell not going to Costa Rica."