We are getting a kitten (3 months) very soon. However during christmas we are spending the night with family some distance away. We would like to take him with us. The one thing that worries me is: my sister is already bringing her cat, who is used to having access to the whole house when they are there (but he hides most of the time when everybody is there). Any tips for cohabitation ? Should we keep the cats separated ? If the cat was older I’d probably think about leaving him home, but I feel uncomfortable with that as the adoption will be so recent and the kitten still young…