Bathroom humor

So there we were, Jill, Jills good friend emily and I visiting in Jonas's room. Jonas said he had a joke. He begins by saying 'Knock Knock' and Jill said 'who's there?', 'Pee pee, poo poo". Jill slightly embarassed, quickly scolded him by saying "Jonas!, that is bathroom humor". So Jonas with a wided eye frozen stare and a cute little smile looked at Jill then quickly ran to the bathroom and yelled "PEE PEE, POO POO!!".