What is Sexy?

Is sexy the curve of her lips?
The form of her hips?
Or is it the way she catches her breath,
And the soft touch of her caress?

Do you even know what you seek,
Perhaps just one more peek.
One more taste, one more touch-
Before you've had too much.

Or is it, as I believe...
Her heart on her sleeve.
It was, oh yes - her gorgeous smile
That was sexy all the while.