She wasn't wearing much makeup, except for some muted lipstick that framed a luminous smile, the centerpiece of a beautiful face.

Kate turned for some quick repartee, but kept on walking, leaving the professor with her luminous smile to think about.

"An old Roman," she said with a sudden luminous smile.

A sudden luminous smile lit the child's face.

The gloom on Warren's face finally melted away under the dawning radiance of a luminous smile.

He gifted her with a luminous smile and a worshipful stare from those melting, honey-brown eyes.

Then her luminous smile appeared, and she reached for his hand.

It would have done her good to see his luminous smile again.

Derr Carmody gave him a warm and luminous but completely professional smile.

It was a luminous smile, wise and young.