Paul's grin broadened, then faded into a more serious expression.

She must have been watching Blade's eyes, because her grin broadened.

She could feel his cheek muscles lifting as his grin broadened.

The grin broadened as his mind played over the full implications of his question.

As his grin broadened, they began to have trouble keeping their own faces straight.

His grin broadened as Poirot picked up the articles and frowned over them.

Vicki turned toward Lambert's side of the cell and her grin broadened.

The Ferengi's grin broadened for a moment, then became an insincere frown.

The grin broadened as the whip lashed back, then forward.

She passed over her clothing to the auntie, all too casual, and the woman's grin broadened as she looked from one to the other.