The kittens at three and a half weeks

Matilda and her kittens are thriving. Almost a month old, the kittens are wobbly but learning how to walk; they have teeth; they love to play with each other, chewing on each others' ears and tails; but mostly spend their time sleeping in a cozy heap. Matilda has been nursing them diligently, even as their teeth have grown in, and is still a wonderfully sweet cat that likes to hang out with us in the living room when she's not taking care of her kittens. She also likes human food and I have to keep on eye on her whenever we are eating. It can be spicy or hot, and she doesn't seem to care. I think she is sick of all the kitten food I've been feeding her. I try to give her a variety of things, but she is so hungry all the time.
There are some videos of the kittens on my YouTube channel:
http://www.youtube.com/user/Tsujimonster
Here are more pictures:

Lilly

Robin

Barney

Marshall

Theodora (Ted)