Hi, I introduced a 3 week old kitten to a 6 month old kitten, both female. The older kitten was whining to see the little kitten so much that I let her see it, she then proceeded to get closer to it and then they both started to play, but eventually the little kitten wanted to sleep, the older kitten didn't really know what to do, she licked it some but didn't seem like she wanted to cuddle with the little kitten. Anyways, I was wondering if the older kitten could adopt the little kitten to be her mother? I'll obviously keep feeding the kitten with formula since milk won't come out of the older kittens nipples, but could she in a way, take care of her, to be her "mother"? If so, what signs should I look for?