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She got herself out of her chair, still shaking with laughter, and offered him a hand up.

I spent the entire day up there reading it and shaking with laughter.

Then he dropped back into a chair, shaking with laughter.

Her voice shook with laughter as she shoved at him.

Cameron was shaking with laughter, looking on and making no move to help.

Between moments of dead silence in herself she shook with laughter.

"I never do things like that," he said, shaking with laughter at the thought.

Lucy sat back in her chair and shook with laughter.

A minute later he returned to his seat, shaking with laughter.

Then he stumbled out of the office, shaken with laughter.