I have 3. My male and female are 2 months apart, different breeders and they get along fine. He is much more playful then her at times and she puts him in his place. I just got a smaller female who is a year apart in their age and she rules his roost! Tells him like it is. Charlie and Paisley are almost 2 and Cini is almost 1. They all 3 get along, though. The more the better