Jack gripped his cock, pounding away at it wildly, untamed and unabashedly unashamed. His chest heaved and hoed as he rode the high of brilliant, magically induced, pleasurer - it was a physicals sensation unlike anything Jack had felt in his simple, human life. But soon, Chad grinned, part of that would change. The desire dear Jack felt now would be obliterated by all desires to follow, and as for the human part, well... Chad giggled quietly to himself and simply watched the erotic display before him.
Jack's sweat stained skin tensed as slowly, though the heavy trembles of pleasure, a strange warping came over his lean form - a light density of muscle flourished where there was once simply scrawny boniness. It was simple, still lean but clear and now growing slowly and sexily into existence.
As this delightful change occurred, Jack's body hair slowly and soon rapidly began to grow thicker and shaggier. It began with his pubic bush, which grew thicker and more wild! That same thickness slowly began to spread down from his groin and itched down his rapidly hairier and hairier legs. Jack raised one hand to his forehead, feeling the curling horns growing from his hair, which in turn was growling out wild and in rich, dark curls. You could see his pit hairs grow thicker too! Dark and stinking of the woods.
By now his musculature had reached to that of a soccer player, and there it seemed to settle as it became clear, defined and beautiful to Chad. He still seemed human, if with hairy legs and now a light fuzz across this thick pecs. But, as Jack moaned in awe and pleasures, that soon shifted and changed. His hairy legs grew shagger and shaggier by the second, slowly encroaching into the territories of fur. Then at once with a loud snap, his legs changed into that which resembled goats. His feet rapidly twisted and curled into hoofs as his leg hair was now overtly fur.
With one last wail, the last inches of humanity vanishing from his form, as his cock sprung to twelve glorious inches! It was goatish, inhuman and now fired an endless load of cum as the new Satyr Jack fell to the floor a changed man.