Sam let the grin soften to something more wry than fierce.

"That's exactly what I'm going to do," he answered, his grin softened into a smile.

He grinned, and then the grin softened.

The captain's grin softened to a gentle smile.

Her grin softened as she closed the final distance between them, setting her naked feet carefully beside his boots.

As her chin tilted up, her grin softened into a smile.

The grin softened the hard lines of his face.

Her grin softened into a smile.

The teeth disappeared and the grin softened into a true smile.

An infectious grin softened his rigid demeanor and eased the morning's strain.