Nobody fills out his swim trunks quite like Michael Phelps and he didn't let his fans down Saturday when he opened the 2011 season of Encore Beach Club at Encore Las Vegas.

PHOTOS: Michael Phelps Takes It Almost All Off In Vegas

The 14-time Olympic gold medal winner led a champagne ceremony for a crowd that included Miss Nevada Sarah Chapman.

Hundreds of his mostly femme fans cheered when Phelps joined them in one of the club's three pools -- the guy can even dance in water!

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Phelps hopes to add to his medal count at the 2012 Olympic games in London.

PHOTOS: Michael Phelps Back In The Pool

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