My friend's cat has four kittens that are 8 weeks old. We live in Florida and with Hurricane Irma coming, she had the option to get a flight to New York and asked if I would take care of the cats while she's gone, especially since I am planning on keeping one of them. Since we have two cats already, my roommate and I were a little worried about the mom cat and our female cat getting along. What we weren't expecting was the mom cat rejecting the kittens too. After only a few minutes she was hissing at them too. I figured it was because they had the scent of the other cats on them so I've been rubbing her with towels and rubbing those onto the cats to get her scent on them and she still will hiss and even try to attack them if they get too close. I've also been switching their locations so she gets used to their scent in her little area, but she only seems to be calm if she's completely isolated from other cats. We've even had to block the door of the bathroom wit blankets or pillows because the kittens try to go under the door and she hisses and screams at them. I've read that some cats will do this to wean off kittens when they get too old, but these kittens are only 2 months old. What do I do to fix this? And after the hurricane passes and they go back to their home, will her relationship with her kittens get better? Please help.