Las Vegas- First it was Kid Rock and Tommy Lee, who nearly battled over Pamela Anderson, and now in an “only in Vegas” moment, could a similar war erupt between porn-stars as the Adult Video Expo gets underway tonight?!?

My first question in this fable of the frolicking foursome: Is Travis Barker’s ex wife, blonde beauty queen Shanna Moakler, actually dating Jenna Jameson’s ex-hubby Jay Grdina? That’s the buzz, but let’s deal first with facts!

It’s true that Ultimate Fighter Tito Ortiz will be arm-in-arm with new steady squeeze, Jenna, this evening, as she throws a party with her Club Jenna girls at the Playboy Club and Moon nightspot in the Palms to kick off AVN. How happy Tito will be seeing all the X-rated posters around town of Jenna’s new blockbuster flick co-starring ex Jay, making his own porn-action moves, remains to be seen. But Luxe Life has been reliably told that Jay “ain’t at all happy about the romance between Tito and Jenna.”

That word quickly picked up steam around the industry, and now both guys have added extra security for their four-day AVN weekend so that, if paths cross, fists do not fly in a jealous war of words.

But the most intriguing juicy gossip in this strip-off show-all head-to-head combat is the whisper that, since New Years, Jenna’s ex has been out on dates with Travis Barker’s ex, Shanna. (You all remember the divorce-cake she cut-apart last fall at LIGHT nightclub in the Bellagio!)

Ah the wicked web that love lets loose. Behind all the drama was Jay’s sale of Club Jenna to Christie Hefner’s Playboy empire which netted the couple pre-split more than $60 million before the lawyers fight over what’s right and fair!!!! We’ll be watching this love-fest of flesh close-up starting tonight!