Heidi Montag and Spencer Pratt of The Hills confirmed to Tyra Banks on her show last night that Lauren Conrad did make a sex tape. Pratt said that he knows for 100% that it did exist. He said he would take a lie detective test for it. Apparently Conrad’s ex-boyfriend was trying to sell it. Tyra asked Spencer if he had watched it, he said no, he would rather throw up than have to watch it! Oops!  (video after the jump)

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