I've had my new cat for about two weeks and she and my boy got on instantly. They do scrap though and I just need to make sure they're not trying to hurt each other. They chase each other (both as bad as the other!) and grab each other and roll around. Sometimes it involves a bit of a yowl and banging around. However, when they get bored, they seem to instantly lie down apart, panting and rolling on their backs, until one of them decides to play again.
Is this normal? There's no wounding going on or fur flying. Both cats sleep happily on my bed and bump noses all the time. I'd hate to think I was allowing one or both to get hurt...