It's obvious why famous men date models. They're gorgeous. We spotted Russian beauties Irina Shayk and Anne Vyalitsyna showing off their bikini bodies in South Beach Miami, Florida, yesterday. The ladies dunked themselves in the ocean and weren't afraid to get wet.

Irina, who's dating soccer superstar Cristiano Ronaldo, was recently featured in the Sports Illustrated swimsuit issue. But she recently revealed she'll never pose for Playboy. "Yes, I am a lingerie model, but I have class. Playboy offered me so much money last year. I was like, 'No. Way.'"

Anne is also a Sports Illustrated swimsuit model and Victoria's Secret star, who's dating Maroon 5 frontman Adam Levine. In November the couple stripped naked for the November issue of Vogue Russia.

Check out more shots of the bathing beauties...