Actor Ryan Reynolds, who turned 35 Sunday, spent his birthday weekend with his "Green Lantern" co-star Blake Lively in Boston.
The duo were spotted taking a stroll with their dogs outside an apartment in Boston, where Reynolds is filming the action film "R.I.P.D".
"They are very much a couple. They're really happy together," people.com quoted a source as saying.
Lively, 24, recently split from Leonardo DiCaprio after a brief romance, and Reynolds is still friendly with his ex, Scarlett Johansson.