updated 08/17/2011 AT 4:00 PM ET
•originally published 06/08/2011 AT 6:00 AM ET
Cheryl Burke sipped on a glass of red wine while sharing an animated chat with Hills alum Stephanie Pratt at a fundraising event for Generosity Water in Las Vegas. The Dancing with the Stars pro swayed to the music while snacking on tray passed hors d’oeuvres. Later in the evening, Burke flirted with a handsome, dark-haired partygoer, and the twosome got cozy in a poolside cabana.