As expected, Russell Brand has been making the rounds since his divorce like the true manwhore that he is. Unexpectedly, however, Brand isn't hosting nightly orgies, but instead bouncing from one monogamous relationship to the next. His latest victim? Isabella Brewster.

"It's been going on for a few weeks," a source tells Us Weekly. "He really likes her." Isabella is the sister of actress Jordana Brewster and has previously dated Bradley Cooper and Milo Ventimiglia.

Brand, of course, was married to Katy Perry for 14 months before his sex addiction sent her running for the hills the couple split under mysterious circumstances. We're guessing Katy would have some choice advice for Ms. Brewster.

(Photo: WENN)