Well, it's a mother cat and four kittens. The mom takes care of the kittens more than I do... and she does a really good job of it too, despite only having three legs.

[ He looks over to Mondo as if to say "isn't that cool?!". ]

So I don't have to worry about them as much, but I let her take a break by playing with them from time to time. They're really used to people now. Scratching posts would be really good though.