Erick admired himself in the mirror, looking at the jeweled crown atop his head. He thought he looked rather regal. He gave a wide smile at the image of himself in the mirror, revealing his pearly white teeth. But something was wrong. He saw they were growing sharper and bigger, becoming fangs. He focus shifted as he noticed his formerly short brown hair was growing longer and was also growing on the outlines of his face and around his neck too, becoming a flowing mane of hair.
"Wait! No..." he exclaimed, pulling at it. He noticed his hands were changing too. They were growing a short, yellow fur. His nails were pushing out into sharp, black claws as his hands reformed into something closer to paws.
Erick pulled open his button down shirt and saw the rest of his body was growing the same short yellow fur. His feet started feeling painfully tight in his shoes. He quickly pulled them off and watched as they re-formed into something more resembling the hind paws of a lion. His pants ripped and tore as his upper legs gained muscle mass, as did his shirt sleeves as they gained muscle too.
Erick felt his face push out into a muzzle as his new sharp fangs fell into place. Erick glanced into the mirror at his new form, that of an anthro lion, which did not entirely displease him. He was now king of the jungle, he guessed.
Erick let out a loud roar that echoed through the house.