Tim noticed something else, the hair on his body was growing a lot more dense. His arms, as they grew bigger and more muscular also became covered in hair. The button up blue shirt grew tight and the buttons popped off as his chest expanded to a fine barreled shape, he noticed that thick hair was growning on his chest. He looked down and just below that, his expanding belly grew to a nice round beer gut, also covered in hair. He was growing taller as well and his shoes grew uncomfortably tight. The backs of his hands were hairy, everything was hairy! He felt the cheeks he shaved clean this morning and wasn't surprised to find a thick full beard had grown in the few minutes he'd been preoccupied with his body.
"What the F...", he started to say a few choice words but the deep baritone voice that had begun to swear startled him into silence.
Tim found that the box wasn't finished with him yet. He continued to put on muscle, though the fat seemed to have stopped growing on him. He removed his shirt and could feel the hair on his back and neck caressed by the breeze, he loosened his belt and unzipped his pants. He looked like everything on him had shrunk in some sort of sudden downpour. His muscular thighs felt as though they would burst the seams of his pants and still the muscle grew on his body. His privates, he found to his delight, were very much bigger than they were this morning in the shower.
Finally the change seemed to stop. He looked around, he was in an area of the yard that afforded him some privacy. He removed his now torn and stretched out clothing until all he was wearing was his underwear, and those looked too small to contain his now huge package. He surveyed his body. He guessed he was about six foot or so and he was literally covered in hair. His beard was moderately long and very bushy, the immediate image of Hagrid from Harry Potter came to mind. Tim had become a 'Bear'.
No sooner than that thought came to mind than he felt a jolt from the box, like an electrical shock. A thin blue bolt had struck him and now, he began to change again. Thick golden brown fur began to grow all over his body, he watched as claws grew from his fingers and felt a muzzle push out from his face. He grew even larger and even more muscular and more fat grew around his belly. His underwear finally gave up and tore completely in two with his added girth. He looked at his huge paws, paws that retained the thumb of his human form but were as clawed and furry as any grizzly bear's. He felt the broad barreled chest covered in thick golden brown fur with his huge paw/hands. He looked at the pawed feet that had burst through his shoes. He waited for a moment sighed. The change stopped.
Now, in the yard before the box, stood a werebear. Somehow he knew he was not a full bear. He knew that he could easily change back into his huge bearish human form.
His next problem was, how. He'd have to think about that.