Blake Lively and Ryan Reynolds workout together at a gym near their upstate NY home on Sunday August 12, 2012 Credit: Splash News Online

It looks like Blake Lively has changed her mind about skipping workout -- as long as she has her hot boyfriend by her side!

Lively, 24, hit the gym Sunday with her boyfriend of ten months, Ryan Reynolds, in Bedford, New York.

The Gossip Girl star showed off her long, lean legs in red shorts for the workout. Reynolds, 35, stayed covered up in track pants, a tight gray T-shirt and baseball cap.

Lively, who has been dating her Green Lantern costar for ten months, opened up to Marie Claire in June about her talked-about love life. "I've been with very few people. If I'm not with somebody who really excites or inspires me, then I'd rather be by myself," said the actress, whose exes include Gossip Girl costar Penn Badgley and Leonardo DiCaprio.

Apparently, Reynolds has inspired his girlfriend to exercise. At a screening of her film Savages in June, the actress told Us Weekly, "I eat cupcakes and I don't work out! But if you ask me in ten years, I'm going to regret answering that way now . . . I don't even drink water. It's terrible!"