Sounds like my house 24/7. Josie & Brodie play so hard like this! I used to think that Josie was getting hurt because she's the one that hisses & growls her head off while they play . . . but later I realized that most of the time, Josie is the one that instigates their "games" . . . LOL . . . and yes, we have tufts of hair laying all over our floor. I really don't think you have anything to worry about. Your precious angels have just learned a new game and they LOVE it!!!

My advice, just keep their nails trimmed. If Josie & Brodie's nails are sharp, you can actually hear them when they smack each other. I keep them trimmed short so neither has the advantage.