Kristin Cavallari Talks About Tampon Disaster

Kristin Cavallari Talks About Tampon Disaster

She's the brash girl everyone loves to hate on The Hills, but Kristin Cavallari isn't afraid to share her less-than-fabulous moments with Usmagazine.com.

In this exclusive video, Cavallari tells Us about her Thanksgiving plans, her celeb crush ... and her most  embarrassing moment -- period!

"I don't know if this is appropriate," she warns.

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The blush-inducing memory? A photo shoot involving "little booty shorts and lingerie," a bold stylist and a feminine hygiene product.

Curious? Watch the clip above!