by Free Britney at

No, not Lauren Conrad. The one after her!

Jason Wahler's former "model" girlfriend has been forced to pay up for one of her loser boyfriend's many brushes with the law in 2006.

Kristen Deluca was in the car with Jason Wahler when the Laguna Beach meathead assaulted a tow truck driver who tried to tow his car.

The driver sued both Wahler and Kristin Deluca (below, left), and the 26-year-old hottie anted up $3,000 to settle her part of the lawsuit.

Wahler, who is now engaged to Katja Decker-Sadowski (above, right) and supposedly booze-free for the past year after four arrests in as many states (!), pleaded no contest to criminal battery, but remains in the civil suit.

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