We've got two gorgeous two year old black cats. We got them from the RSPCA a year ago and we love having them around.
The only problem we've had was when we minded a friends cat for a few weeks while she was on holiday. This male cat terrorized our cats and they both became anxious. We had to keep them apart and wouldn't attempt introducing any more cats.
DD10, is desperate for a puppy. Is it possible to introduce a puppy with two settled and content cats?