His mouth crinkled, and he didn't try to mask his amusement.

Carlina looked up at him in astonishment; then her red mouth crinkled in a small smile.

His mouth crinkled.

His mouth crinkled, and his eyes sparkled.

"No, you've guessed it" Father Fletcher's mouth crinkled at the comers.

Jenks seemed to contemplate the possibility for a moment, then his mouth crinkled into a contemptuous smile.

Myryan's mouth crinkles into an ironic smile.

His captor's mouth crinkled at the corners--as close as it seemed he would come to a smile.

Then, slowly, her mouth crinkled at the corners, and the crinkles spread their way out into a wide smile that made her look, Jim thought, even more lovely.

Her red mouth crinkled in a smile.