Aaron stepped back to admire the massive black centaur he had created. Mike's human parts had become muscled and dark as well, and he looked incredibly powerful. His arms still hung limply, but when he concentrated he could move them normally.
"You are going to be amazing!" Aaron grinned and stripped off his clothes. "But before I finish you up I want to make a few improvements to myself."
The wizard sighed and shook his head. "I was afraid of this. I'll end up with two warhorses. Still, I can make a good profit."
Aaron shook his head. "No! I can control myself. I just want to be a little bigger." He rant he brush lightly over his own crotch and shivered in pleasure as his male parts grew larger and darker. He was already decent sized, and just a couple of strokes swelled him out to nearly a foot in length and testicles the size of walnuts.
Mike's nostrils caught a difference in his scent, more like his own instead of all human. He shifted uncomfortably. "Don't forget to finish me up."
The young fighter grinned and nodded. "Not a problem." He stroked himself some more, going from large human to something more like a jackass's equipment.
With another sigh, the young wizard moved over beside Mike and reached underneath to start rubbing his sheath. "I can finish things up for you."
Mike twisted around trying to see, then shuddered as pleasure began to build. The wizard was masturbating him, bringing his Shire's penis out of its fleshy cave. The harder he got, the more intense the sensations got.