Kim Kardashian Wears Another White Dress  Kim Kardashian has been showing off her famous figure in a variety of sexy white dresses for years, so it was only fitting that she chose to rock her favorite color at her 31st birthday party in Las Vegas. The reality star wore a curve-hugging number with sheer panels and accessorized with several sparkly bangles and oversized diamond earrings. Kardashian joined her mom Kris Jenner, sister Khloe and her husband Lamar Odom and Kim's friend (and former Dancing with the Stars partner) Mark Ballas in Sin City. First, the group sat for a quick dinner, where they dined on a spread of Italian restaurant specialties. Then they headed to a Nightclub inside The Cosmopolitan of Las Vegas, where Kim and her group sat at a VIP table surrounded by a packed house. "Tonight was so much fun!!! Yummy meal at Lavo then fun night at Marquee! Thanks to everyone who came out!