Mary suddenly groaned as an almost painful sensation hit her. It was coming from her udder. She looked down. Her udder was visibly swelling! "Oh no!" she exclaimed. "My udder!" Mary's udder grew and grew, pushing Rob back. Mary guessed that her udder was producing much more milk since Rob was sucking the milk from her. Her udder stopped growing when it reached the size of a love seat, as before. Mary couldn't even move now. Rob stared in awe at the swollen udder before him. He decided to...