Mysterious entity: "You will be cursed. Every night, under the light of the full moon, you will become a mythical beast."
*later at night*
Chrissie: *wakes up and looks down to see that a mermaid tail has replaced her legs* .... I was kinda expecting werewolf, but... okay...? Not really a tragedy.. MAYBE an inconvinioence. But other than that, I can't see how this is really a curse."

So, yeah. This is something I came up with a while ago, and recently decided I wanted to be canon. So, whenever there's a full moon, Chrissie will turn into a mermaid. She doesn't require water at all, really, but now she can breathe under it. So, kinda an upgrade, actually.
I'll come up with what actually caused this later.

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