The Kardashians stepped out Saturday night and partied at Tao in Sin City for their sister Kim.

Wearing a tiara and pink sash, Double K is said to have enjoyed the festivities put together by her sisters Khloé and Kourtney. People says the elements included all necessary bachelorette party prerequisites, such as a cake and a smaller than usual male stripper who jumped on a table for a strip dance. Kardashian told the crowd, "My sisters are doing everything they can to embarrass me."

About 20 guests are said to have been present to party with the reality star who will marry basketball player Kris Humphries on August 20. Apparently unable to be too far from each other, Humphries was having his bachelor party at Lavo in Vegas. Kardashian surprised him and the other guys celebrating with him (including Lamar Odom and Kardashian’s younger brother Rob) when she showed up at his VIP booth unannounced.

Thankfully she didn’t stay longer than 10 minutes and left the men to their privacy. It seems she might have only wanted a kiss, which is exactly what People says she got in front of the entire club.

(Photo: Denise Truscello/WireImage)