The scaled belly tightened and two edges of tape opened at the base of the model's heavy tail.

"This planet is the only source for human brains," she said, and his belly tightened.

He hadn't planned on that, and he felt his belly tighten in fear.

There was no humor in that smile, and the prince felt his belly tighten.

Philip's belly tightened as he saw four more British officers ride from the thickets on the right side of the road.

But Bahzell knew what was hidden there, and his belly tightened as he sensed a dark, malevolent presence inside that hill.

He felt his belly tighten with a new dread, and bit his lip as he climbed.

He took another deep breath, feeling his belly tighten.

The fear knot lodged in his belly tightened.

Her belly tightened again, another of those breathless moments.