Audrina vs. Kristin

Posted 2:49 p.m., May 28

Lauren's last episode hasn't even aired yet but the arrival of Kristin Cavallari is taking away LC's attention.

We were tipped off by Usmagazine that Audrina was on Ryan Seacrest's L.A. radio show.

On Kristin, Audrina said, "I don't like her."

Apparently the two girls had a fight while filming but Audrina wouldn't divulge any details.

"When someone gets in my face, I have to defend myself. And, you guys, I mean, I can't say much. They'll show it, for the other bonus episodes but I mean, all I have to say is, it's really pathetic and desperate what people will do when the cameras are around," she said on the show.

"It was my birthday, and I was just like, Oh, my God, this is what we're going to have to deal with?" she added.

On Heidi's wedding: She said there were metal detectors, security and Perez Hilton.

On Brody: She says nothing happened, no making out even.

On who will narrate the next season of The Hills: She said she doesn't know yet.

On whether she's dating Star Trek's Chris Pine: She wouldn't confirm or deny. But added, "From Justin Bobby, I think any guy is an upgrade."