Alex looked down nervously. Then looked back up, smiling softy, and shaking his head. He crawled out of the covers, shaking silently. He looked up at Aaron, his tail wagging slightly. He thought for a second, and then began to calm himself down, panting, his bones shifting, making silent popping sounds, as they broke and repaired them selves in different ways. Soon he was back to his human form, panting. "There." He said, sitting up, completely naked now. "Sorry...it's just... whenever something exciting, or scary, or anything that makes my heart beat faster, I change, some times even in my sleep."