But she never, EVER pees in the litterbox.
She's about 3 and a half. We also have another female cat who is 6 and has hated the pee cat since she was a kitten. We tried getting two litter boxes but that didn't change anything. Both of them have been spayed.
We've also taken her to the vet, and while she was treated for a urinary tract infection, nothing else has changed; she still pees where she pleases.
Oh, same with poo. She'll poo anywhere as well.
Yum yum, birds in a birdhouse :D