Why does your cat grabe your hand and kick it with his back legs like a rabbit when you pet him?

Your cat is just play fighting with you. This is why you cat grabs your hand to hold on to it. Cats have claws on theirhind feet they would use to rip the stomach open of an animal it was hunting or fighting. They sometimes bite your hand while they're kicking it. You've probably noticed them doing this with other cats or dogs.