Kittens knead their paws on the belly of their mother to stimulate milk production. Because this action brings immediate rewards and comfort, it’s not unusual for cats to continue this behavior with their human loved ones as adults. When a cat kneads your belly, he feels emotionally secure and happy. In fact, the action is likely to be accompanied by purring, right?
Felines also have scent glands on the bottom of their feet, so a cat may “knead” to gently mark his territory. Some cats grow out of the behavior, but most people report that their cats knead, or “make biscuits” as it is sometimes referred to, on a regular basis.