It seems like they've already tripled in size since they were born on tuesday. They are all growing great and Belle is doing a great job of taking care of them. My younger female (Remi) also likes to take her turns taking care of the pups. I haven't let her in with them too much yet, but last year when they were a couple weeks old she mothered them like they were her own. I'll wait until they get a little bigger for that, but she would huddle them up just like Belle does, clean them up, and look after them just like a big sister does!! They are starting to scoot around a little bit more now, but they still like laying in a pile and sleeping most of all. I shot a short video of a couple of them moving around a little bit so hopefully you enjoy that.