Perrin still did not look up, but his cheeks turned red; Mat's grin deepened, though it looked forced.
Dark lashes swept over his eyes and his grin deepened as he gave the fire a last prod.
Julia's mocking grin deepened, but he couldn't look I away from her mouth any more than he could stop pushing.
His grin deepened when he realized she was quite naked.
As he descended the steep narrow steps built within the thick wall of the house, a sly grin deepened on his lips.
His grin deepened, strong teeth glinting behind his dark whiskers.
James's dark brow shot up, his grin deepened.
Piemur's grin deepened at this reference to his apprentice pastime.
A grin deepened the malevolence on the old-timer's face.
His grin actually deepened so that creases appeared at the corners of his eyes.