I would break them up if it starts to get on your nerves. When Graemer and Miley would beat up on each other to the point of distraction, I would put one cat in a time out, and allow the other to cool off too. I don't know if this fighting stuff was going on while I was not at home, but while I was home and it happened for long periods of time, it seemed that a time out helped.

Good luck.

Sometimes teenage kittens can be a real pain in the butt. Juni bugs Miley to the point of growling .... then I step in and start yelling.......I think they are jealous of each other when I am around.

Keep us posted!