He felt like all the muscles in his body were jumping.

A muscle jumped at the edge of the king's eye.

A small muscle jumped in the side of his neck.

Her arms felt so tired, suddenly, that the muscles in them jumped.

She freed him, and all the muscles in his body jumped.

She just held on to the edge of the window, hard, and a muscle in her jaw jumped a few times.

You could see the muscles jump with the Turk's effort.

There was a thump, and every muscle in his body jumped.

His muscles jumped at the first stroke of her tongue.

A muscle jumped along his jaw as he struggled for control.