"I'm not Laughing"

Really quick funny story....today my children were being a little bit crazy. Christopher told Lexi I was a playground and then proceeded to jump on top of me. Lexi was laughing at him, and I said to Christopher it's not funny stop jumping on me. Then my little "smart mouth" Christopher went on and told me with such a serious look on his face, "I'm not laughing". It was the truth he wasn't laughing, Lexi was....and even if no one was laughing they still had to of thought it was funny to keep doing it to me....that little boy of mine....what will I do with him? Sorry no picture, just a story I thought was amusing!