Lauren Conrad was a lady in red Friday night at Las Vegas's Bellagio hotel, where she hosted a party celebrating the launch of her second book Sweet Little Lies. The follow-up to LA Candy, which will be available on February 2, is just one of LC's new literary projects. She made sure to rest up before undertaking her new promotional tour, though, by taking a New Year's bikini vacation in Mexico with her boyfriend Kyle Howard. The book's release is just one day after Lauren's 24th birthday, so there's sure to be lots more celebrating in store for the former star of The Hills.


More photos of Lauren in Vegas if you just, read more.