Credit: DEN/Fame Pictures Photo: Scott Disick Kisses Kourtney Kardashian Outside Hyde Lounge in Hollywood on December 17, 2007

Is Kourtney Kardashian following in little sister Kim’s footsteps? According to one source Kourtney’s got an old sex tape that’s about about to hit the Interwebz!

“It’s Kourtney on her knees, performing oral sex on a guy,” says a source who claims to have seen the tape. “It’s pretty graphic, and there are clear shots of her face.”

While Kourtney would probs be pretty mortified if this fleshy footage hit the public eye, the source says baby daddy Scott Disick wouldn’t be too happy, either, considering he’s not the man on film!  “If the tape was ever made public, Scott would be livid — and I believe there would be serious consequences for their relationship,” the insider says.

Of course, Momager Kris Jenner is pulling out all the stops and is more than ready to do serious damage control. “Kris is determined not to let any of her daughters go through something like what happened to Kim again,” the source reveals.

We want to believe that, we really do. But given that Kim’s sex tape is what made this family a household name, this latest scandal sounds suspiciously like another publicity stunt.

Source: Hollywood Life