Are Ryan Reynolds and Blake Lively dating?

(CBS) Has Blake Lively moved on from Leonardo DiCaprio?

The "Gossip Girl" star was reportedly spotted over the weekend with another leading man: Ryan Reynolds.

Pictures: Blake Lively
Pictures: Ryan Reynolds

The "Green Lantern" co-stars spent Reynolds' birthday weekend together (he turned 35 on Sunday), according to People magazine.

Reynolds and Lively, 24, were photographed on Saturday morning - along with their dogs - outside an apartment in Boston, where the actor is shooting the action film "R.I.P.D."

"They are very much a couple," a source told the magazine. "They're really happy together."

And the Daily Mail reports that Lively was spotted leaving Reynolds' apartment again the next day.

Lively and DiCaprio's split was reported earlier this month. Reynolds and actress Scarlett Johansson split last December after two years of marriage, and their divorce was finalized over the summer.