Niell knew that he was different in some way, shape, or form- But he couldn't put his finger on it. Nor did he particularly care, for that matter. He raised a hand to his mane, and stroked again, feeling yet another flash of pleasure wave through his scalp. Somehow, Niell was completely ignorant of the fact that he was completely naked, and half-lion.
Meanwhile, Lucas was still testing out his crayons. He took the black one and drew a long tail to go with the rest of the picture. Lucas then picked up his brown crayon, the same one he used for the mane, and added tufts of fur at the end of the tail.
Niell was still admiring himself at that point in time. He lightly brushed his hand along his torso, admiring the beautiful coat of fur that had spread so quickly over him. Niell felt a stretching feeling coming from his backside. He reached his hand around his back, wanting to feel around and find out what was happening. He put his hand on his tailbone, and he felt an expanding feeling as his skin converged and protruded from his spine. This new flesh was covered in fur like the restt of him, and continued to grow and grow until this new tail was down to Niell's knees. Niell caressed and massaged his new appendage, and as he did this the fur on the very tip of the tail lengthened and grew into a brownish tuft.
Niell felt a lot of pleasure from growing this new body part, and began to exercise the new muscles that had established themselves there. He swished his tail right, and he swished his tail left. The tail swung with power and might, and this added to Niell's growing sense of pride.