Audrina Patridge is a Golden Girl

The Hills star Audrina Patridge flaunts her bikini body in a revealing gold number at the DKNY Jeans house in Malibu earlier this month.

This past Saturday, the 23-year-old aspiring actress was seen having some poolside fun with her girlfriends at a casino in Las Vegas, Nev.

Get ready for new parties, guys and drama in Season 4 of The Hills, airing TONIGHT @ 10PM ET/PT on MTV.

10+ pictures inside of Golden Girl Audrina Patridge…