Kim Kardashian woke up on Saturday ready to party. The bride-to-be was joined by friends and family at an engagement soiree thrown in LA and shortly thereafter moved the pre-wedding festivities to Las Vegas for her adults-only celebration. Kim was joined by her sisters, Khloe and Kourtney, along with mum Kris and best friends Brittny Gastineau, Lala Vasquez, Jonathan Cheban and Robin Antin for her bachelorette hosted by Tao. Kim's sisters did their best to send her off in style, gifting her with a crystal-encrusted tiara, bright pink "bachelorette" sash, and other naughty accessories. Not far away Kim's fiancé, Kris Humphries, partied at Lavo with his own posse of guys including Lamar Odom, Rob Kardashian, and a number of his fellow NBA players. The parties took place simultaneously and while Kim and Kris originally promised to keep their groups separate, it seems the rules were broken around 2 a.m. when Kim and her ladies barged in on the boys and their VIP booth. Kris didn't seem to mind the intrusion and swooped Kim up in his arms and planted a kiss on her while the crowd cheered them on.