Parker just went still and chittered for a moment without really saying anything. However, her grip was painfully tight and she had burrowed her face into Sirius's fur like doing so would somehow make herself invisible as brown among black. She made a little noise that may or may not have been a very muffled "hurry up." Right now she was worried about the cats and the lions and the wolves that might decide a furry little critter without any claws might taste delicious.