Sigh.

I'm almost embarrassed posting this but then I ask myself two questions:
(1) Will I want to remember this twenty years from now?
And (2) Will it still be funny?

Yes and oh, yes.
Good. Now that that is taken care of:

Jack and Thomas are in the tub.
Jack shouts 'Pee pee! Pee pee!'.
I take Jack out of the tub. Jack sits on the toilet.
And he sits.
And he sits.
Jack looks down. He grabs his penis (incredulous!) and says 'Not coming out! Not coming out!'.
Jack looks up.
Jack looks down again.
Jack gives his penis a good yank and starts to shout 'Turn on! Turn on!'...