They tore up the terrazzo dancing salsa at South Beach's Pearl. They jammed to electronica and played make-believe news anchors and firefighters at the Miami Children's Museum. They did the Dirty-South grind, chains of them in bikinis and surfer shorts, around the pool at the Surfcomber on Collins Avenue. More than 7,000 lesbians, from South Florida, New York, Philadelphia, Atlanta, even Canada, France and South America, came together over the weekend for the blowout fundraiser Aqua Girl. They didn't stop dancing until well into Sunday evening. They also didn't stop surprising themselves with their ease in blending together. In...