Due to stray infiltrations I've ended up with four females, a terrible combination. They're so territorial they require separate beds. The youngest is 5 and the oldest is maybe 8 or 9, and they've made this a madhouse for for 8 years. Fights break out all the time, and two cats won't even go in the same room if the other is there. They're totally perverted and I love them all.
My females get along fine - in that shot the boy happens to be in the middle, but you're just as likely to see the girls snoring away with their front paws around each other and their heads cheek to cheek. The worst disagreement was between the little female and the boy, but it was all just shirt-tearin' as they say, no real clobbering, just jumping on each other from behind the furniture and running away.