Leighton Meester and Adam Brody have been dating for several weeks and were recently spotted ''hugging and laughing'' while taking in art exhibitions at the Los Angeles County Museum of Art.
The couple - who co-starred in 2011 romantic-comedy movie 'The Oranges' - have reportedly been secretly seeing each other for several weeks, which comes after they used to ''hang out'' together while shooting the film.
An insider confirmed to Us Weekly: ''They were always close and friendly.''
The 26-year-old beauty - who is known for her role as Blair Waldorf in teen drama TV series 'Gossip Girl' - and the 33-year-old actor were spotted ''hugging and laughing'' as they took in art exhibitions at the Los Angeles County Museum of Art earlier this month.
One eyewitness, @CedricDiggory, wrote on Twitter: ''They were getting cuddly today at the LACMA apparently? Hugging & laughing. (sic)''
@tayeschbach19 tweeted: ''Just in the same museum exhibit with Adam Brody and leighton meester. Enough said. #lacelebsiting (sic)''
Leighton and Adam - who starred as Seth Cohen in US teen drama TV series 'The O.C.' for four years - also travelled to Bangkok together earlier this year where they were spotted at the Siam Kempinski Hotel in the Thai capital city.
Adam was recently linked to 34-year-old director Lorene Scafaria - who helmed Steve Carell and Keira Knightley's comedy-drama movie 'Seeking a Friend for the End of the World' - while Leighton has previously dated 'Austin Powers' actor Aaron Himelstein.