Alex and Fred:
Fred moved almost as swift as Alex did, but found herself slowed a bit by the fact that she was laughing so hard. She had warned him, so he shouldn't be too surprised. She'd do something nice for him later. Of course she would be having to look over her shoulder for the next month or two while Alex planned his revenge. That was the thing with friends. You could do something like this to each other, but you also had to take it with good humor when they inevitably got their payback.
"Sorry," she said with mock concern, "I didn't mean to do that."