His fists tightened a bit as he entered the grounds.

She felt a fist tighten around her heart and squeeze.

I heard the word yet linger in the air silently, and my fists tightened.

Her heart ached as though a fist had tightened around it.

Eyes narrowed, fists tightened against his coat front, Jerry tried to figure the answer.

His fists tightened even more, and he looked away for a moment before facing her again.

Muscled cords stood out on his arms as the fist tightened.

Doug's fists tightened, but June put out a hand to restrain him.

Harlan's fist tightened on the whip; his voice was low.

"I'm not interested in eating station food here," Julian said, fists tightening on the table.