I don't have a problem. What's your problem?

[Zuko folds his arms in what could be interpreted as a pout. He then slides his gaze towards Yin and sighs. He supposes he should get this over with.]

Okay, so... when a person, or a turtle, love each other very much...

[No no... that doesn't sound right. Zuko puts a hand to his chin and starts to pace. Trying to figure out how to word this. How would uncle do it?]

Sex is a lot like... kissing. With your butt.

[Yeah that sounds about right.]

You exchange a little spit, and then a baby happens.