Leighton Meester and Adam Brody are dating

This may sound like the plot of an upcoming CW show, but Adam Brody and Leighten Meester have reportedly been "hanging out," a source told Us Weekly.

Brody, best known for his role as the lovably geeky Seth Cohen on "The O.C.," and Meester, "Gossip Girl's" headband-wearing queen bee, co-starred in 2011's "The Oranges," with Hugh Laurie, Oliver Platt, Allison Janney and Katherine Keener.

According to Us, Meester and Brody "have been keeping their relationship out of the public eye," but visited Bangkok together and were seen at a Los Angeles art exhibit earlier this month.