I have one dog, Casey, who is 13. She was about 6 or 7 years old when I got my first cat and she was a major cat hater (at least I thought she was) until I got Kit-Kat. I was concerned about what Casey would do to Kit Kat so I kept them separated for about a week. Casey got into the room by accident where I had Kit Kat and all she really wanted to do was sniff her. After that they were best of buddies. I have had 2 litters of kittens in my home since then and also now have a total of 4 cats. They all get along and the cats love the dog. Three of the cats I now have will lay with the dog in my bed or on the couch or one of the pet beds. The cats will come up to Casey and rub their head into her. Buddy will walk alongside Casey rubbing his head all along her body, turn around and come back rubbing on her. They also talk to each other. I know this because Buddy will come in, meow at Casey and she will get off of the couch and bark at me!