No, we're not talking about a new hookup between two former O.C. cast members -- we're talking about Mischa Barton and Adam Brody each finding girls to make-out with (well, sorta)!

Apparently, Mischa's onscreen smooches with Olivia Wilde whet her lips for more. According to Variety, she's set to star in a new flick with fake lesbian Russian singers, t.A.T.u.. Based on a novel, the movie centers on a lonely American teen who, while living in Moscow, befriends and bonds with a girl through a t.A.T.u. fansite. Um, do we hear bombs going off in the background?

And on the reality side of the spectrum, Adam Brody has been spotted getting "cozy" with Hostel II's Lauren German, Page Six reports. "Adam spent the entire night with Lauren," a spy says. "He was caressing her back and refused to be photographed with her." Hmm, trying to hide your relationship from the press? Yup, sounds like Adam's M.O.!