Adam Brody and Leighton Meester, both veterans of the teen drama genre with The O.C. and Gossip Girl, have been secretly dating for weeks, sources confirm to Us Weekly.

The actors, who costarred in 2011 dramedy The Oranges alongside Catherine Keener and Hugh Laurie, have been "hanging out," a source has revealed.

"They were always close and friendly," the insider added, noting that the pair would hang out on occasion during shooting for the film.

And though the pair have been keeping their relationship out of the public eye, they have recently been making the rounds, traveling together to Bangkok earlier this year and taking in art exhibits at the Los Angeles County Museum of Art on Friday, Feb. 1.

Hmm... We think Adam Brody may have a thing for brunettes. We can definitely see some similiarites between his ex Rachel Bilson and Leighton!

Best of luck to the new couple!