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![Battle of the Partying Reality Sisters]()
As the weather warms up, bikini-clad socialites are coming out in droves. Let the pool parties begin! The Hiltons kicked things off in Las Vegas, hitting the pool at Rehab on April 15. Not to be outdone, the Kardashians celebrated Kourtney's birthday at the MGM Grand on April 24. Which sisters look like they're having the most fun in Vegas? Click through and decide!![Paris' Pink Bikini]()
Weeks after splitting with boyfriend Doug Reinhardt, Paris was looking frail at the Rehab Pool Party, which she hosted. Paris' slim figure seemed even more spare -- ribs were visible -- in her skimpy hot pink bikini and sarong. Hilton reportedly dumped Reinhardt, her on-again-off-again boyfriend of 14 months, earlier this month. "I am great and enjoying being single," she told Access Hollywood. "He [Doug] is just angry because I broke up with him." For more pics of Paris, visit x17online.com.![Bombay Bungalow]()
The trio of Kardashians hung out with pals and celebrated Kourt's day in an ultra exclusive Bombay Sapphire bungalow. The group danced to tunes spun by DJ Hollywood. (Wire Images/ Denise Truscello)![Paris Gives a High Five]()
Paris gives a lucky pool partier some love at Rehab. For more pics of Paris, visit x17online.com.![Kourtney's Kake]()
Kim and Khloe check out the cake as big sis Kourtney sips a drink. Family, friends and partygoers sang "Happy Birthday" as Kourtney blew out the candles on her Bombay Sapphire blue cake. (Wire Images/ Denise Truscello)![Pole Party]()
"I need more positive people around me and people who love me for me," newly single Paris recently told reporters. Looks like little sis Nicky is filling that role -- for now. Nicky and Paris pose with a poolside stripper pole. In true Vegas style, the sisters wore high heels to the pool. For more pics of Paris and Nicky, visit x17online.com.Socialite Pool Parties: Who's Having More Fun?
The Kardashians and the Hiltons have been getting wet & wild poolside in Vegas. You decide which sisters are livin' larger.
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- Socialite Pool Parties: Who's Having More Fun?
