Mom blinked and, after a beat, laughed.

Mom was laughing and saying something silly.

Mom laughed and said that time travel sounded fun, and she wanted to try it, too.

Mom threw back her head and laughed.

Mom laughed as if I had made a joke.

Mom and Dad laughed at my funny walk.

Mom was laughing, but you could see by the glisten in her eyes she was getting miffed.

Mom and her friends laughed at the revelation.

You and Mom always laughed at all of them.

Mom and Dad laughed in approval.