The cast of “The Hills” may have gone their separate ways, but since most of them are part of the same Hollywood bubble, reunions are bound to happen.

Such was the case on Thursday night when Kristin Cavallari presented her collaboration with Chinese Laundry. The 28-year-old bumped into former “The Hills” star Audrina Patridge, and lucky for us, the two posed for a bunch of photos together. Our high school selves are, like, so totally into it.

Kristin, who was also promoting her new book, Balancing in Heels, looked chic in a navy blue tunic, white jeans and suede fringe booties. The reality star, who’s pregnant with her third child with husband Jay Cutler, kept her hair and makeup simple. Audrina, 30, went for a more boho look with a floral maxi dress and wore her hair in long, loose waves.

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