Duane, one of the boys watching the 2-satyr orgy raised his hand. "Ms. Yannatou? Is there way to become a minotaur? Satyrs are nice, but I've always thought it would be cool to be a bull."
The nymph nodded. "Minotaurs are certainly large and powerful, but not as popular as satyrs because of their lower intelligence, inability to speak well, and body odor. If you do not mind any of that, I would be delighted to have a real minotaur to demonstrate some things to the class. And you will qualify for a special field trip afterwards." She smirked slightly.
Duane nodded and stood up. "I volunteer! And I don't care about the other stuff, I just want to be a minotaur!"
"Come up to the front of the class, then and remove your clothing. We do not want to cheat your fellow classmates from seeing all of this very rare transformation." Ms. Yannatou gestured at a spot away from the still copulating satyrs.
Duane was already pulling his shirt off as he came forward, revealing a hairless but decent chest. He was on the junior varsity swim team, tall for his 15 years, but very lean. Ms. Yannatou almost hated to go through with the transformation, but a volunteer was rare for the bovine monsters. Too bad this one was such a good looking and usually smart kid. Duane was naked in under a minute - the boy had nothing to be ashamed of - he was still obviously far from fully grown, but had nice proportions, and even at 15 was nicely equipped, if circumcised.
She walked around him once, nodding in approval. "Repeat what I say, exactly as I say it." After he nodded, she cleared her throat and said very clearly "Zitó apó tous theoús na mou dósoun to sóma kai tin psychí enós távrou minótavrou." He stumbled over it a few times before she finally broke it up into smaller bits and had him repeat each smaller section. There was a sudden rumble of thunder from outside, and Duane had a short but intense wave of dizziness. Only now did he think to ask "What was it you had me say?"
"I ask the gods to give me the body and soul of a minotaur bull." Ms. Yannatou grinned. "And they were certainly quick to respond!"
At first Duane did not understand, but then some of the other students stared at his crotch and laughed or gasped. Looking down, Duane gaped at the massive, darkening ballsack that was still swelling out under a nearly black swelling around the base of his much thicker cock. At the same time, a thin coat of black hair started appearing over his skin, and the sides of his skull bulged. The massive sexual equipment distracted him a minute, but then he asked "Did you say 'body and soul'? My soul is changing, too? This is just for class, right?"
The nymph chuckled and shook her head. "Duane, you are normally such a bright boy! I never said anything about being able to change back, and you repeated what I told you to say without question. You are going to be a minotaur bull for the rest of your life!"
"But..." Duane's protest was cut off as powerful muscle spasms made him grunt and clench his fists. Muscles swelled and he grew taller with each heartbeat. His face was pushing out now, his one lean body now rippling with muscles. Duane's eyes widened in alarm and he tried to talk again, but the nymph placed a hand on his throat and what came out was a low bellow, like a cow... or bull.
"Now, class. As you can see he is becoming a humanoid bull, or minotaur. While his impressive body changes are fun to watch, pay close attention to his head and especially his eyes. You will be able to follow the transformation of his mind and his soul, see him transition form human to beast. It is a very rare and exciting thing to watch."
Duane's legs twisted, but he maintained his balance as he rose up on tip-toe, then had those toes harden and enlarge as they merged into massive cloven hooves. The thick body hair was now coarse fur on the lower half of a bull, with the powerful chest and arms also covered in bovine hide. As promised, the real change was taking place above. Horns pushed out of Duane's temples, and his nose and mouth were now a full muzzle. His nose was slick with mucus like a cow's, and his forehead was dropping behind massive brows. Although larger, the boy's eyes remained the same bright blue until all else appeared to be animal. Duane bellowed, clenching massive, three-fingered hands and swishing his bovine tail. And then his eyes darkened. It was more than changing color - they got larger, and the irises expanded - even after they were fully bovine eyes, a brightness remained in them for another minute before finally dulling down. Duane relaxed as they dimmed, standing contentedly in front of the class, showing no curiosity or interest.
Ms. Yannatou reached up to pat the now 8-foot-tall monster's chest. "Duane is now a typical minotaur - they are docile, amazingly strong, and can be trained to do simple tasks. He will make an excellent beast of burden or farm worker, and be happy with enough food to eat and cows to mate with."
One of the girls, Wendy, raised her hand. "Does he remember being human?"
The nymph shrugged. "If he concentrates very hard, he will be able to remember some of his past. But that is very unlikely to happen - he has the general mentality of a smart bull, and as long as he is treated well, will have no thoughts beyond those of a happy animal."
Clark, a boy in the back, raised his hand. "But if he is going to be like that forever, won't his parents be upset?"
"An excellent question, Clark. The answer is they will be no more upset than your parents when you do not come home today."
"Huh? Why wouldn't I go home?"