Hunter's eyes were glued to the sky as the moon blocked out the sun and shadows fell over the garden. As they met, however, a weird uncomfortable sensation ran through him. "Mom, I think I've gotta go to the bathroom," he said quietly.
"Aww c'mon, you'll miss it!" she protested.
"I HAVE to go," Hunter replied firmly. She nodded with a little reluctance, and Hunter dashed to the bathroom, locked the door and sat on the toilet, pulling the curtains open and looking up at the eclipse.
He bit his lip as he felt the uncomfortable sensation flare up- but this time, it felt weirdly pleasurable as well as painful. He stood up and walked to the mirror, just in time to see dark fur sprout all over his skin. He involuntarily opened his mouth and saw it and the rest of his head shift, a snout and lupine shape forming as his teeth sharpened into fangs.
His back and chest muscles convulsed and strained against his clothes. As his body contorted, it and the rough fur he had sprouted ripped them up. Hunter was now naked as the day he was born, and despite the thick fur covering his body he could tell his muscles had grown. He felt a newfound feral strength all through him. Much as all of this felt absurd, he could tell he seemed to be turning into a wolf.
Before his eyes, his body grew more animal. His hands and feet shifted into clawed paws, though to his relief they were a little more dexterous than a wolf's. That relief was short-lived as he felt his backbone tense up and extend, a tail pushing from above his butt. Even his penis transformed, with a knot forming around its root as it became more animal-like than human.
Perhaps not surprisingly considering he was a teenage boy, the stimulation to his penis addled Hunter's mind. He turned from fearful to aroused, and went from questioning to embracing his emerging feral side. Seeing himself in this wolfish body in the mirror, he felt intrigued. Without hesitation, he dropped to all fours, noticing and appreciating how easy that was in his new form. He sniffed the air with his lupine nose and drank in the strong scents of fresh meat, blood, prey. Insatiable, he burst through the bathroom door and raced to the front door of the house, wanting to go on the hunt.