Okay, well that certainly explains a lot.

[Not that he had heard of something exactly like this. Well, actually he had, but he just didn't realize it.

Sokka sits down on the couch, now that he's calmed down a little bit from Zuko's not-so-manly affections and beckons her to sit down to.]

Geez, where do I even begin to explain this to you? You're... this place isn't anywhere in the world we're familiar with.

Actually, better yet, what's the last thing you remember before waking up here?