Liam shook his head. "You'd think a kid from this town would know better."
Mike shrugged. "It's OK. Feels sorta weird, but good."
"Oh, it's about to get a lot weirder." Liam chuckled.
A shout from the kid and a tug on his penis made Mike twist around to look back. The boy was trying to pull his hands out from Mike's sheath, but they seemed to have become glued to his cock! Mike felt each tug, and began to pound erect. As his shaft emerged, it became obvious that the boy was not going to free his hands - they had merged with Mike's cock, and his arms were rapidly being sucked into the black shaft as well.
Mike stared. "You have to stop this! He'll...." The centaur suddenly went rigid as a hard jet of semen shot from his cock. It followed by another, and another, each thicker and more powerful than the previous, splattered on the dirt. Mike's mind was overwhelmed by sexual climax, and he was only dimly aware of the heavy weight that dangled from his cock as the boy was absorbed. He felt the boy's fear, then his entire identity seemed to connect with Mike's. By now a thick pool of semen was spreading over the ground, and the boy had almost completely been absorbed. Mike shuddered over and over, until one final massive gush erupted from his massive black cock. Except that the boy's consciousness was aware of the semen as if it shot from his mouth. Both Mike and he experienced the pleasure, and then what had been the boy became simple awareness in the black shaft.
Liam grinned. "That is going to complicate things for you - your cock has a soul, and no telling how magic will affect it."