Adam Brody and Leighton Meester
12/23/2013 at 01:05 PM EST
Where's the bling?
kept her ring finger hidden from view while she and new fiancé
Adam Brody went for a stroll with their pups on Sunday in Los Angeles.
The pair looked casual in sunglasses and sneakers, with Brody, 34, wearing a puffy coat and sweatpants and Meester, 27, sporting a sweatshirt, floral leggings and a denim jacket tied around her waist.
The couple are notoriously secretive about their relationship
, though they have been spotted together
The former Gossip Girl
actress and the former The O.C.
star worked together on the 2011 film The Oranges
Meester will make her Broadway debut
next year in a revival of John Steinbeck's Of Mice and Men
, also starring James Franco