From what I can tell, scar is either an EXTREMELY simple minded individual, or an excellent troll.
But her actions today around me lead me to believe she's honest, just blatantly stupid.
So no, I don't think she is kitty as well, as I don't think her parents could be fooled by her to re-pay for a game.
Unless it's a sister. But to be quite honest I don't see Kitty lasting much longer than scar did, if anything scar seems slightly smarter than kit