Wow! Gisele Wears Tiny Bikini at Beach With Son Benjamin

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Ridiculously hot mama, ridiculously cute kid!

Gisele Bundchen hit the sand and surf in the Caribbean on Friday with Benjamin, her 22 month-old son with husband Tom Brady.

And although the Brazilian supermodel, 31, and fam are on vacation, she couldn't help but work her world-famous body in a tiny, pink string bikini. She was also snapped teaching little Benjamin (with floaties on his arms!) how to swim.

Benjamin is the first child for Bundchen and New England Patriots quarterback Brady, 34, who has a 4-year-old son, Jack, with ex Bridget Moynahan.

"My children, they are like white canvases," Bundchen told the December issue of British Vogue. "When Benjamin eats broccoli, he thinks it's dessert!

Alluding to her incredibly fit body and overall work ethic, Bundchen seemed to slight her sisters in the British Vogue chat. "Yeah, well, like I tell my five sisters, who don't work at it very hard at all, whatever you put in, you get out. I'm not afraid of working hard at anything, whatever it is. I just always want to be the best that I can."