It really does depend on the nature of both. Seeing as your bringing a kitten into a cats environment there shouldn't be as much of an issue with dominance just yet. Could be a bit of hissing but I doubt it will be much of a problem, if they do get a bit naughty try leaving one in a cat carrier for a little time each day with the other in the room, so they can get used to eachother without actually being in direct contact. But try not to leave them in there too long as it shouldn't be used as punishment. Best of luck!

xxx Joey

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