He experienced a moment of vertigo and a sudden tensing in his stomach.

Michael washed the cuts carefully, gauging the pressure of her fingers by the sudden tensing of muscles in Ethan's back.

Noticing a sudden tensing of the hump of muscle across the bear's shoulders and guessing it presaged a charge, he didn't hesitate any longer.

His seventh sense was working now, and, as he found the old iron gate in the walls, barely visible in the night, he felt a sudden tensing.

He could see it in the sudden tensing of her shoulders, in the way she held herself, rigid and poised for flight.

Then she felt a sudden tensing of all his muscles.

Jake could see when he had caught whatever it was, from the sudden tensing of his muscles and the black spark of delight in his eyes.

His companions seemed to regain their courage at his bold words, their horses stepping nervously at the sudden tensing of the bridles.

Her shoulder had felt the sudden tensing of Brion's body where it touched him.

The sudden tensing of his entire body underlined his words.