Paris Hilton and Shanna Moakler had a battle of the tongues at the Complex Magazine Fifth Anniversary party in L.A. on April 10.

The two spied each other at Area and immediately began making out with their respective saliva repositories in what onlookers described as a “makeout off.”

The party was their first run-in since Shanna, 31, and Travis Barker, 30, got back together after Paris and Shanna's infamous Hyde catfight last year.

The Meet The Barkers co-stars were the first to arrive, holding hands and announcing that they were "in love" and "still married" and speaking about it to every media outlet on the red carpet.

"They were super polite and so happy with each other," an eyewitness tells Usmagazine.com. Once inside, the two cozied up in a booth and "were all over each other all night."

A short bit later, Paris, 26, showed up with new beau Desperate Housewives’ Josh Henderson, 25. After walking the carpet, she was escorted into the club where she eyed Shanna and Travis and immediately told publicists to seat them as far from them as possible.

Both couples kissed "as if they were trying to one up each other," says the eyewitness. "Paris was so all over Josh and they were slow-dancing and making out all night."

"Paris and Josh looked to be so in love," friend and publicist Ben Russo tells Usmagazine.com.

And just when we thought the evening couldn’t get any less classy, Kim Kardashian, 26, showed up alone a bit later and demanded to sit far from Paris.

She was ushered to a booth across the room (where she chatted with Sons of Hollywood star David Weintraub), so that Paris, Kim and Shanna sat in a perfect little Axis of She-vil, ignoring each other, while all hyper aware of each other’s presence.

Sounds like a fantastic party.

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