Just after midnight, a couple wandered past a handful of singles gyrating on the dance floor and headed for the door. They traded information and kissed goodbye.
"We danced all night, and we have great chemistry," said Catherine Shores, 49, a self-proclaimed "cougar" who works for an Internet security firm.
She hugged the 25-year-old "cub" with whom she'd been seductively swaying all night. "We're both excited and want to see where this goes," she said, her cub nodding in agreement.