Blake Lively bares her bikini bod!

The Gossip Girl star -- who has said, "I do panic before I have to wear a really skimpy outfit, but I don't have enough willpower to diet" -- showed off her athletic frame in a black bikini on the balcony of her private hotel penthouse in Miami on Sunday before the Super Bowl.

Lively, 22, soaked in the sun with Gossip Girl costar Chace Crawford, 24. He was photographed staring at the ocean and and throwing coins off the balcony into the sea.

She is not the only star showing off her bod this weekend. Jen Aniston rocked a bikini in Cabo San Lucas, Mexico, on Friday while celebrating her upcoming 41st birthday.