answer:I’d be worried that he might be get himself into an argument and be unable to defend himself with these new kitties. You have to remember that cats aren’t the most social of creatures to begin with, and in my experience are only likely to like the other being that they have grown up with. I’d be worried about the other cats ganging up on him. However, having a dwelling is kind of necessary, so I would suggest carefully following these instructions on introducing a new cat into a household. There are many resources with information put out on this issue by humane societies and other legitimate sources, so read up a bit and play it safe with introducing the cats to each other.