Mere weeks after her globe-trotting summer romance with Leonardo DiCaprio cooled, 'Gossip Girl' actress Blake Lively has been seen keeping company with yet another handsome actor -- her 'Green Lantern' co-star, Ryan Reynolds.

The two were spotted leaving his Boston apartment together early Saturday morning with their dogs in tow, and star-watchers say they've been together for roughly a month now.

Lively is also in Boston shooting her new movie 'R.I.P.D.,' but it's looking less and less like her "friendship" with Reynolds is merely geographically-convenient.

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