"Lo" Bosworth Tells Kristin Cavallari to Back Off

Entertainment April 23, 2010 AT 11:22AM By UsWeekly Staff

What Kristin Cavallari wants, Kristin Cavallari gets.

In a never-before-seen clip from The Hills Season 5, Cavallari, 23, tells Lauren "Lo" Bosworth, 23, she's moving in on Audrina Patridge's man, Justin-Bobby Brescia. (Patridge is currently linked to Ryan Cabrera.)

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"If Audrina and I were friends, we wouldn't even be having this conversation," asserts Cavallari. "I would never, ever do that to a girl. It sucks. [But] I don't know Audrina. I don't owe her anything."

Bosworth warns her to step back. "You have a reputation," she says. "People think you are playing with people's hearts instead of going after somebody in a serious way... just doing it for fun."

Cavallari rolls her eyes and sputters, "Bulls--t!"

The sixth and final season of the MTV reality show show premieres April 27, the same day the Season 5 DVD hits stores.

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