Audrina Patridge & Ryan Cabrera Party with Her Hills Costars
Jason Webber/Splash News Online
05/03/2010 AT 02:00 PM EDT
Audrina Patridge, holding hands with beau Ryan Cabrera at Les Deux, where the Hills star celebrated the club owners' birthdays along with her castmates. Nearby, Kristin Cavallari chatted up her new flame Justin Bobby, just inches away from his ex, Patridge. The entire group also watched as the birthday boys were presented with two colossal Crumbs cupcakes.