So Laa-Laa is ripe for fucking, but Po is out of the question, because that would be weird.
Later, Professor Snape teaches Dipsy how to turn Tinky Winky's butt into an instrument of pleasure:
"Oh Dispy, he don't have crotch mouth. But behind him, you will find a pork's eye. Don't be afraid, it's dirty, but after a while you will like the fine flavor of melted chocolate covering your lips."
Who let this man work with children?
But it doesn't stop with poop. Snape's fascination with bodily fluids continues as the lesson descends into an all-out orgy featuring boogers, vomit and bathing in fountains of breast milk. It's just a single-minded medley of every conceivable excretion, but the scariest part is that we can't shake the feeling that Snape is in his element here.