How to introduce a new kitten to another cat.
Hey everyone! I have a cat who is nearly 3 years old. My Apartment Manager's cat just had a litter of kittens, and I'm going to be getting one of them. So far I've been going over there every day to get to know the kitten and bond with her (gonna call her Win) , And today I brought Win over to my place for about 3 minutes for my other kitty (Luka) to sniff her. (the baby is only a week and a half so I didn't want her away from mommy too long) Needless to say, Luka hissed and hid. I want to know how to help introduce them. I still have about 7 weeks until I can take Win home permanently, and I would really like for the transition to go smoothly.
Anybody have some good suggestions?
EDIT: I should also add that we have a much older cat who is sick, we have to put her down soon, so Luka is used to other animals. Or at least one other cat.