The Gossip Girl beauty accepted The O.C. hunk’s surprise proposal, Star magazine reports.
“Leighton and Adam are crazy about each other and have talked about getting married eventually,” an insider told the magazine.
“But she had no idea when he would propose so soon! It was the surprise of her life and she’s ecstatic!”
As Radar previously reported, the couple got “close and friendly” while shooting 2011′s The Oranges together and have been dating for at least 10 months.
Previous to Meester, 27, Brody, 33, was linked to director Lorene Scafaria in 2010 and famously dated his O. C. co-star, Rachel Bilson, for three years.
Meester broke up with actor Aaron Himelstein late last year.
“Right now their plan is to get married next summer,” the insider told Star
Congratulation to both of them !!! ❤