>>2874536>>2874546For a proper climax, we could add another scene in which the cat, realizing that the princess has started to enjoy her new companion's adorable embarrassed reactions, causes another even more extraordinary highly public incident during the feast, which is what finally convinces her to "adopt" the girl as a new "sister" to "play with" from now on (if this is too close to yuri for what you're going for, a marriage to her thus-unseen brother should be fine too).
Now I see that in some of the earlier versions the cat is in fact some kind of fairy in disguise, and that would kinda be helpful for explaining some of the obvious plot holes, both the old ones from the version I read and the new ones I just introduced. Maybe it's a fairy that usually only does mischief and decided to do a good deed for a change but hasn't quite got the hang of it yet?
And speaking of which,
>>2874537The other anon seems to be referring to the classic fairy tale itself, which includes a scene in which the cat instructs its owner to bathe in a river, then hides his clothes and yells "thief" when the king comes past, in order to pretend to be a nobleman and also fall in love with the princess. This is from the most popular version, written in French in the 17th century, although the earliest written version is apparently from the 16th century and in Italian. And yes I did just look all that up on Wikipedia.