I LOVE THIS. Matt needs to cuddle with a friendly cat, it'll be good for his mental health. The cat feels a lot like a real cat, and Matt feels really in character --- he'd try not to take the cat in at first, and he totally wouldn't name her (even though it will help fill the probably aching void in his life post-S2). Overall, really good job! I'd totally be interested in reading more if you were to write more. Also, an aside: the way the cat is described sounds a lot like my kitty, who is very friendly. So I got the added bonus of picturing Matt sleeping on the couch with my cat.
Re: Minifill: Mat and Cats (Part the Fourth)