Since arriving in Miami to shoot the film Marley & Me, Jennifer Aniston has been looking better than ever, downing martinis, sunbathing on the beach and enjoying leisurely dinners with friends. "Jen’s lost seven pounds in seven days," a friend tells OK!. "She’s back to the body that Brad couldn’t resist!"

 

On March 15, the former Friends star frolicked on the beach outside the Mandarin Oriental Hotel, clad in little more than a teeny pink string bikini, thumbing through magazines and snacking on berries and salad. "She was smiling and giggling with her friends," an eyewitness tells OK!. "Her butt looked amazing!"

Jen’s amazing physique is not the only thing stopping traffic these days. Friends say the actress is noticably more calm and happy with herself; something they say clearly radiates from the inside.

To get all the intimate details of Jen’s 10-step plan for getting back the body that lured Brad, pick up the new issue of OK! — on sale everywhere Thursday.

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