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GALLERY: Kristin Cavallari, Bikini Babe

Kristin Cavallari knows how to stand out in a crowd!

PHOTOS: Kristin Cavallari, Bikini Babe

Wearing a sexy black bikini with a sheer top, the 23-year-old reality television starlet showed off her amazing figure at the Liquid Pool Lounge at Aria Resort & Casino in Las Vegas on Saturday.

EXCLUSIVE: The Hills’ Kristin Cavallari Dumps Cheating Boyfriend

With MTV’s The Hills coming to an end, the show’s cast are picking up loose change doing odd jobs wherever they can!

PHOTOS: Kristin Sweet Talks Her Way Out Of A Tow

So Cavallari has followed in high-heeled footsteps of Heidi Montag and Audrina Patridge, who all have now collected appearance fees for hosting the Vegas soiree.

PHOTOS: The Hills Fashion Face Off

While at the event, Kristin tweeted: “I’m donating a good chunk of the proceeds from today to my charity One Kid One World. Every little bit counts.”