Barnes nodded, the muscles in her jaw fluttering.

A muscle near her right cheekbone fluttered at erratic intervals, and the nail polish was chipped.

Delicate muscles clenched, parted, and then fluttered in temptation.

A muscle fluttered and he felt the familiar tightening of his stomach.

The delicate muscles of her jaw fluttered, and when she spoke, her voice had risen in pitch.

Coot's feet slid on the too-well-polished floor, his muscles were fluttering as they faltered.

The muscles would flutter under my hands all the time I was rubbing them.

Rathere moaned, and a muscle in her thigh fluttered for a moment.

Sleek muscles trembled and fluttered on the nervous edge of exhaustion.

The muscles of his jaw fluttered as he made his proposals, nervous as an adolescent.