Las Vegas played host to not one but two major parties this weekend. Kris Humphries and his posse of friends, including soon-to-be brothers-in-laws Lamar Odom and Rob Kardashian, partied together last night at the Palazzo's Lavo night club. A few hotels away his fiancée Kim Kardashian simultaneously celebrated her bachelorette at Tao. Kim let loose alongside her sisters, Khloe and Kourtney, and her mom, Kris, until 2 a.m. when the ladies then dropped in to crash Kris Humphries's bachelor party. Kim and her crew didn't stay long but she did share a sweet kiss with Kris before resuming her girls' only soiree. Today Kris was once again without his bride-to-be, Kim, though he made the best of his time in Sin City by enjoying a shirtless afternoon at Tao Beach. The pair is closing in on their big day with rumors Kim and Kris are planning to walk down the aisle Aug. 20.