I have the idea tucked away in the part of my brain that has Goku/Lirin looking like they're paired for the Sanzo/Kougaiji freakout, but they actually aren't.

Also, I know Nix is probably playing with the "they fight like cats and dogs" trope there, but I get the impression that Disreputable Dog is a dog at least partly because lirael wanted a puppy. Unless I misread it, wouldn't that also imply that Mogget is a cat because Sabriel's father wanted it? What would that make their original forms?