It appears, according to reports, that Nick Lachey and new girlfriend Kristin Cavallari have already called it quits.

Rumor has it that Jessica Simpson's soon-to-be ex-husband, Nick gave his "Laguna Beach" star, girlfriend Kristin Cavallari the boot. Not staying idle for long, Kristin is said to already be back with her ex-boyfriend Brody Jenner.

A source close to the situation says, "Nick didn't want to freak everyone out - she was too young and he knew it would look bad."

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