Thanks to her active lifestyle she always looks perfect in a bikini, and yesterday (March 30) Audrina Patridge was spotted getting physical in Los Angeles.

The “Hills” hottie looked to be having a marvelous time as she tried out Reebok’s New Jukari Fit to Fly at the Jukari Fit to Fly Studio, sporting a red tank top, black stretch Capris, and black sneakers.

In related news it seems Miss Patridge has reunited with ex-boyfriend Justin “Bobby” Brescia, though the reunion is only for the cameras of “The Hills.”

A source explained, “They filmed scenes where Audrina is upset that Justin is seeing other girls, but it’s totally made up.  They broke up at the end of last year and didn’t and haven’t been spending any time together at all. The show is having them hang out because they can’t come up with any more story lines.”