adopt two kittens

Well, I adopted one kitten. There were only two kittens in the mobile adoption van, two darling littermates, and I wanted them both, but one of them was in the process of being adopted, so I took the other one. And he is so precious and lovely. What a wise decision, I have no idea why I waited so long. Now I am thinking about adopting another one so they can keep each other company when I am at work, but my kitten seems content enough as it is, and he might get territorial if I introduce someone new. It would be one thing if they were littermates, or if I adopted them around the same time, but my kitten has his run of the house now. I don’t want to upset him. I’m sure he would get used to a new kitten, but I would only get another one for him, and if he is happy by himself, then I am fine with just him.