I think cats like company. For example, there are a million places in my house for cats to sleep, but often all three of them will be sleeping on the same bed or couch. Bo and Hanna especially love to curl up with each other. And Hanna and Abby love to play together, Abby was getting bored because Bo doesn't like rough play. Bringing a kitten into my house with Bo (13 years) and Abby (8 years) was definitely a good idea.