{blackbabes} Serena Williams Models Bikinis for Fitness: "I'm Proud of My Large Boobs!"

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We always knew Serena Williams was a winner on the tennis court, but in her latest cover shoot for Fitness magazine, the sporty star proves she's on top of her game in more ways than one.

The accomplished athlete, who also runs, bikes, dances and practices yoga to stay in shape, stripped down for a beach photo shoot for the magazine looking drop dead gorgeous.

Williams modeled skimpy cutout swimsuits for the editorial spread, flaunting her strong athleticism and killer curves.

"When I was young I thought I should be built more like an athlete—long and lean—not with a womanly figure. But then people my age started coming up to me and saying, ‘I love you because of the way you look.' That was really motivating," she said in the interview.

"So I learned to be proud of my curves and embrace my large boobs. It's all about loving who you are and realizing that you're beautiful."

We couldn't agree more, and these sizzling hot photos only confirm her case.

In one shot, she wears a bold red monokini, balancing her hot bod in an impressive backbend on the sand, and then changes into a sensual white suit with alluring netting at the midsection for another look.

Serena, who tells the magazine that she embraces a "clean diet of natural, raw foods" appears proud and confident in every look, no matter how much bare skin is showing.

And given her countless tennis accolades and loyal fan base, it goes without saying that she has every reason to smile.

"I think of myself as two different people. There's the Serena Williams that everyone knows: She's crazy. She can't make a mistake. And she's angry and just not nice, to be honest. I'm only that person for three hours a day when I'm on the court," she explained. "The rest of the time I'm just Serena. I'm the class clown."

And a downright sexy one at that!