After I got my two girls, I did some reading, and with any domesticated animal it is advised that if you have more than one they are less likely to need you as much as if they were lonely. This is why I have two cats (they're less needy), but if you are wanting Louie to be your best mate, you will always be second to the one who lives with him and speaks his language.
Also remember that he's only 7 months old, which makes him 3 or 4 in human years. Do you know any three year olds who want to be held a lot? They mostly just want to run around and let out their energy. I know they're not all like this, but it's something to keep in mind. My cats didn't become lap cats until they were older. My girl was almost three, and my boy is working up to it now at the age of five! That kind of intimacy has many factors: personality (of you and the animal), age, patience and comfort (feeling of safety for the chin).
Another point against it, is the added stress a friend would bring in, when he isn't even comfortable around you. From what I understand, introducing chins to each other can be stressful on the little guy.
I adopted two thinking it would be easier on them, but am now realizing it might cause me problems with them since one is so aggressive and the other follows her. But, in the end you will never know until you try, and I'm sure there are many people who have more experience than I do.
Really, they're so cute, you can't go wrong either way!