How Blake Lively Got Those Legs! - Us Weekly

She's got legs!

Blake Lively — who flashed her gams in a Marchesa mini at Monday's Met Gala — has been hitting the gym with star trainer Bobby Strom to shape up for Green Lantern (which costars Ryan Reynolds).

"She always looks good," Strom told Us of the Gossip Girl star, 22. "But she has to do stunts, so we're focusing on core and strength training."

Her workout routine includes four-day-a-week, 90-minute circuit training sessions full of planks, pushups and walking lunges in a gym near the film's (out June 2011) New Orleans set.

"She looked at her stomach and said, 'I have abs!'" Strom tells Us.

Her diet? Oatmeal with a handful of blueberries, salads with chicken and balsamic vinaigrette for lunch and fish and veggies for dinner. (Lively also blends fruits and veggies with a juicer, and avoids noshing on too much dessert by eating just a "fork-full.")

Her food splurge: The 5-foot-10 actress loves to cook and eat Greek food.

"You would not believe what she could consume," Strom says. "The Greek fest that she made… crepes with cream cheese in them… we could only eat half of it. She ate all of hers and then went back and ate somebody else's half."

For more details on Lively’s slim-down diet and workout routine, pick up the new issue of Us Weekly, on stands now.

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