Hills Girls Night Out: Heidi's Bday & Wonderland

Celebrating hump day with a swanky evening out, Stephanie Pratt was spotted hitting up the Wonderland club last night (October 7).

Joined by her brother's friend, Charlie, the Hills babe looked vivacious and fun in a sexy blue dress teamed with a pair of matching peep-toe heels.

Credit: Celebrity Gossip

Once inside the club, Stephanie was joined by fellow Hills girls, Audrina Patridge and Holly Montag. Enjoy the rest of the pictures, courtesy of Stephanie Pratt and Holly Montag's Twitter pages.

StephaniePratt "Yep DJ'ing at wonderland!!!" about 5 hours ago from TwitPic

HollyMontag "How f'ing gorgeous is my sister in law?!!! Best wing woman EVER!!! Except the boys all swoon for her haha maybe not. ( ;" about 6 hours ago from UberTwitter

StephaniePratt "Sisters @wonderland!" about 6 hours ago from TwitPic

HollyMontag "Me and sister @stephaniepratt hanging with the cast at Wonderland!!!" about 7 hours ago from UberTwitter

StephaniePratt "Heidis bday party! Wonderland afterpartyyy!" about 8 hours ago from TwitPic