Not so real after all! In a video interview exclusive to Us Weekly, Kristin Cavallari reveals that appearing on her MTV reality show Laguna Beach: The Real Orange County was much different than she had expected.

"Laguna Beach was tough," Cavallari, 29, tells Us about the series that signed off in November 2006 after three seasons. "We didn't realize how much we were being manipulated or put in situations that we wouldn't normally be in."

The star, who spoke with Us at an event celebrating Wonderful Halos joining Boys & Girls Club of America to promote healthy snacking, explains that producers would actually write lines of dialogue for the show's cast of high-schoolers to deliver.

"We never got an actual script, but they would text us what to say, so that to people around us, it would just look like we were looking at our phones, and then we'd talk about whatever," says Cavallari, who has three kids — Camden, 3, Jaxon, 20 months, and Saylor, 2 months — with husband Jay Cutler.

She ultimately learned to embrace the separation between her on-camera self and her actual life, explaining that she enjoyed getting to "play up the villain character" when she later joined fellow Laguna Beach alum Lauren Conrad for the last season and a half of The Hills.

Check out the exclusive video above for more behind-the-scenes details of Laguna Beach, along with Cavallari giving breast-feeding tips for moms and explaining why she's less stressed with Saylor than she was when she first had Camden. 

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