Audrina Patridge is Bikini Black

The Hills star Audrina Patridge sports a cute black and pink bikini as she takes in a few rays in the pool at the DKNY Jeans Malibu beach house in Malibu, Calif., on Saturday.

Bikini by Birdie Jo.

Over the weekend, Audrina, 23, did what she knows best — she got paid $5,000 an hour to go clubbing, drinking and taking pictures with fans!

10+ pictures of Audrina Patridge in bikini black…