Her smile was cubic zirconia. Fifty-five carats of brilliance, all light and air and giggly laughter, and not a bit of it genuine. He wanted to pin her down and shake her and tell her that she didn't have to pretend around him, but she was like a butterfly - lovely and bright and impossible to catch. And she'd spent so long pretending, he thought that maybe she'd forgotten who she really was.

She giggled again, a tinkling titter that set his teeth on edge with its falseness.

He turned to look at her, and caught her looking back at him.

And there it was, just for an instant, that tiny tilt of the lips, the hesitant smile that reached her glorious eyes.

Her diamond smile.

Just for him.