Heidi Pratt Reveals Playboy Cover at G.I. Joe Premiere

Heidi Pratt brought a new accessory to Thursday's G.I. Joe premiere in Los Angeles: Her September Playboy issue.

The Hills star, 22, and husband Spencer Pratt debuted the buzzed-about issue on the red carpet as photographers snapped away. The cover shows Heidi in a skimpy white bikini with a Playboy bunny emblem carved out on her torso.

See stars who've posed with Playboy bunnies.

Spencer was so happy with his wife's cover that he even kissed the magazine several times for the shutterbugs.

See Heidi and Spencer's cheesiest moments.

Those expecting to see Heidi in the buff shouldn't get their hopes up. "She's not nude," her sister Holly Montag recently told Usmagazine.com. "Her Maxim cover was so gorgeous and tasteful."

See intimate photos from Heidi and Spencer's wedding.

Not everyone is admiring Heidi's work.

Look back at famous scandals involving The Hills stars.

Lauren Conrad mocked the cover in the August issue of Harper's Bazaar. Conrad was asked why Heidi decided to pose for Playboy. In a sly reference to Heidi's cosmetic enhancements, she replied, "They're not going to pay for themselves."