"ONE HALF OF HER SMILED AND BENT TO KISS HIM, AND THE OTHER VANISHED IN THE DARK LIKE A CAT"

"Do you know that vintage-record store on Sanchez and Eighteenth?" he asked.
She shook her head and smiled.
"It's got a mirror ball in the window. It flashes over the whole street. Your eyes remind me of it."

BRILLIANT story by Mary Gaitskill called "Mirror Ball" (link to full story online)

http://pantheon.knopfdoubleday.com/2009/04/22/featured-short-story-mirrorball-by-mary-gaitskill/