Scandal! Heidi Montag has a sex tape with Karissa Shannon, one of Hugh Hefner’s twin girlfriends

One of the tapes Spencer Pratt is tying to sell of his ex-sideshow partner wife is a sexy romp between Heidi Montag and one of Hugh Hefner’s twin girlfriends, Karissa Shannon (photo above).

Heidi’s camp has not responded to the situation yet, but Karissa told TMZ that this tape does exist, but she’ll sue the pants off of Doucher if he attends to sell it to Vivid Entertainment.

Spencer claims to have been cleaning out his garage when he found these tapes and had an epiphany! That’s kind of hard to believe considering every move he makes is calculated, he was planning this all along. Heidi may be in on it to, but at this point she playing the distraught card. If she’s really not in on in, that’s a major multiplier for Spencer’s skeevishness.

But Spence claims that he’s doing it all for Heidi:

“I will knock Club Jenna out of the water. When I realized how much Kim [Kardashian] was making, my logic is this is the best thing I can do for my ex-wife. Kim is on the cover of Allure right now. Heidi isn’t on the cover of Allure.”

Oh, and he wants $5 million for them, a price Vivid Entertainment thinks is “not unreasonable.” Hope he splits it with Heidi.