[Hm? Oh, was the other woman not familiar with them then? That's both surprising and not giving the range of people and worlds here. ... That's still such a weird thought though, other worlds.]

A fairy tale is a sort of story typically told to children. Most of them have a lot of fantasy to them, things that wouldn't happen in real life. Some of them have morals as well.

[Like in this instance.]

The idea of a King so dirty that he keeps building an increasingly big bath to wash off in but can never seem to get completely clean sounds like something that wouldn't be entirely reasonable in real life.