Most of the time they behave.
Most of the time.
For the most part, they get along. They cuddle. They groom each other. They take turns at the water bowl.
And then there are times when they are chasing each other and getting into little fights. I guess that’s typical sibling behavior.
It’s when the claws come out that it gets a little scary.
If I was granted magical engineering skills, I would invent a device that would automatically (and safely) clip cat nails without putting my own fingers, arms, or, for that matter, any other part of my body in jeopardy. Clip and done. No more scratched up faces (and furniture).
Seriously. Someone needs to invent that.