Holly Madison Flaunts Bikini Bod

Holly Madison Flaunts Bikini Bod

You can take the girl out of the Playboy Mansion, but you can't take the Playboy Mansion out of the girl.

Ditching her life as a Playboy bunny and one-time Hugh Hefner girlfriend, Holly Madison has set her sights on Las Vegas in her new eight-episode reality series Holly's World.

The star of Planet Hollywood's burlesque revue PEEPSHOW is seen causing trouble around town with her BFFs Josh and Angel at night and showing off her sexy bikini bod poolside by day.

"My friends are like a Twinkie -- they're awesome on the outside and on the inside too," Madison jokes in a sneak preview clip. (Watch above)

Also making an appearance this season: former co-star Bridget Marquardt, with whom Madison goes on a road trip, and Kendra Wilkinson-Baskett, whom she consults for pointers when asked to throw out the first pitch at the Las Vegas 51's baseball game.

Check out the sneak preview clip above and tune in to Holly's World Sunday at 10:30 p.m./ET on E!