Clawing at her tits

Submit a new text post. This may sound strange, but it really depends on the size, shape and firmness of the breast to really say why the cat decides to knead, what part of the brain is active. It's a small one, but it's there. Joke answers are not allowed. I always figured they just liked the way it felt on their claws or something. Let's go out sometime. No unhelpful, off-topic, or joke answers. ALL comments must be helpful and related to the topic at hand. Questions must have fact based answers.