Bringing new cat home

Hey guys

I have two cats, Teddy and Paige--brother and sister--that are just about a year old now. We're bringing in my boyfriend's parents' cat, who's a very friendly (and cute!) 6 year old snowshoe siamese male cat. All three cats are spayed/neutered, of course.

We're going to bring over Mork (his parents' cat) for a few days to at least test them out together. I'm not really familiar with bringing in a new cat when there's already two other cats. Does anybody have any advice on things we can do to make it the best for all of them?

Thanks so much!

One day of testing isn't gonna work. Cats need weeks or months to adjust. If you are gonna take the cat, he needs to be confined to his own room with litter pan, food and water for a week or so and do gradual introductions.

There are threads in here on introducing cats (doesn't matter if they are kittens or cats - still the same routine)