He clung hard to the rail as he went down, because his legs were quivering so much.

When she reached a level again, her legs were quivering.

His arms and legs quivered with tension as he hauled on the controls.

Still later, she stood on her head, and her upraised legs quivered in the air.

His legs quivered and he dropped his weapon to the deck.

The Watcher's legs quivered and tears formed at the corners of his eyes.

His leg quivered slightly at the sound of her voice.

His legs quivered, but he willed himself to stay erect.

His attention moved to her other breast, and her legs quivered.

Of course it was cold up there, and after climbing all that way my legs quivered like jelly.