As Jon was fighting off the zombie hoard, he felt a scratchy feeling as his skin started to turn dark brown not even five seconds into the fight, followed soon by a forked tongue and claws. Then fifteen seconds later, his tail starts to press out and grow thick and heavy. At the twenty second mark his head shifts and becomes much like a lizards while staying humanoid, while for the next minute his body bulks up and grows larger, straining and ripping his clothes apart.
If he could see himself in the reflection of the shattered glass, he would see that he was now 7'2" tall with 500 pounds of extra muscle.
Sara smiled at him as he fought for her.
He looked out the corner of his eye and saw it and