"You are just a lowly centaur yet you dared to challenge my power so for your punishment you will be a gelded plow horse. No voice, no hands, no balls." She laughed as Mike struggled against the spell that held him. "But strong. Very strong to pull wagons and plows for the rest of your animal life."
"Never! You evil bit..." Mike voice cut off in mid-sentence with a single gesture from the Queen.
She walked over and stroked his left arm - the limb began to flow into his body from the shoulder down, merging with his chest until there was no sign it had ever existed. Mike's eyes bulged in horror, but he could no longer scream as she did the same to his right arm.
"Such a handsome face. But not quite right for your body." She pulled his head down and kissed him on the lips.
Mike felt his mouth push forward, his teeth get larger and his nostrils flare. At the same time, her fingers slid back over his ears and through his hair. His skull collapsed, falling down behind widening brows and eyes that were huge and dark. A mane pushed up as his human hair fell out.
She continued to stroke and pet his sides and neck, smoothing and thinning them into a normal horse's neck. Even when he appeared to be fully a horse, she kept at it. His body thickened and grew larger, now built for power and hard work. Those watching recognized the common work horse breed that was popular with farmers. Mike only knew he felt thick and heavy.
"And now, to make sure you get no pleasure from your new body..." The Queen moved to his hind end and reached underneath. Her fingers cupped his massive testicles, heavy with stallion seed, then slipped up to close gently around the base.
Mike felt a hot sting that was gone in a second. The Queen reached under with her other hand and coaxed his enormous shaft from its dark cave. Once again, her fingers closed around the base, and once more there was a hot sting that faded quickly.
Still unable to move, he was forced to remain still as she moved back in front of him - in one hand she held a stallion's penis, the other held a heavy black sack. His penis and testicles.
The Queen laughed and pointed to a guard. "Take him away. Give him to one of the farmers outside the castle - they'll work him hard." She spun back to grin at Mike. "And by the way, even though you remember your past, you will be an obedient animal from now on."
Mike was suddenly free of powerful binding, but found to his horror that she was right. When the guard came, he plodded along obediently, raging inside but controlled by the dull thoughts of the beast.
"Now then." Queen Beth turned to the remaining invaders. "It seems like such a shame to waste these lovely sexual parts. Which one of you would like to have them?"