The cats are really quite close to each other. Where ever one is, the other is not far behind. They love to hang out together whenever possible. I caught them one day on our bed, just hanging out. Don't they look like twins? Well, not twins exactly, since they don't have the same fur, but they're mannerisms are quite the same, and they act like copy cats, "twins". Sebastian likes to mimic mommy cat and vice versa.