“Donkeys!” Ms. Tomlin announced with a smile, clasping her hands together excitedly. The students sat there motionless, knowing full well what the teacher was after – enthusiastic volunteers.
“Come on, no one’s biting?” The teacher pouted playfully, “Maybe donkeys aren’t the most exotic of animals to turn into… but I promised the mayor we’d send some happy mules to tug his float at the upcoming parade! Our lucky volunteer won’t just turn into a handsome ass for the weekend, but for all of spring break! That’s a whole week of animal fun!”
The news just made the students slink back in their desks. Wasting all of spring break as an animal? Who in the right mind would agree to that?
Ms. Tomlin’s pouting turned a little more serious as it became clear she hadn’t sold the idea to anyone. “Did I mention I brought along a graduate of our program along to help convince you? Here, let me bring her in!”
Ms. Tomlin skipped the door into the hallway, suddenly returning tugging a rope with something hefty on the other end. The room quaked with every clop as a large grey donkey trod in behind her, the rope collaring its neck as the teacher yanked it to display it at the front of the class. The animal stank to high-heavens, a sheen of snot oozing from its flared nostrils as its tail idly whipped back and forth. A huge, pendulous black ball sack rubbed between its legs with every step. Testicles and size of basketballs hung just below a swollen, ebony sheath as several inches of onyx-colored horse cock obnoxiously peaked out.
“This is Sasha! She was in our class last year and decided to take the plunge into a new ‘career’!” The teacher snickered, rubbing the beast’s back as it idly sniffed at her. “She’s now a resident on Hill’s farm, providing for the local economy like a good donkey stud should!”
Nervous chatter erupted from around the room. Sasha. That name was familiar. There was a bookish girl last year with that name! Did she… really let herself get turned into a donkey? Did she really want to be a stupid male donkey!? The students could hardly bring themselves to look into the donkey’s eyes, as there wasn’t any trace of human intelligence in them.
A girl named Viv loudly scooched her chair up, making a B-line for the door. She was a model student – smart, pretty, the captain of the varsity Volleyball team. As she tried to leave, Ms. Tomlin to call to her, “Oh, Viv! You and Sasha used to be friends, right? Are you volunteering?” Viv stopped in her tracks, queasily looking to the teacher.
“Ms. Tomlin… I need to use the bathroom, okay?” She said weakly, reaching for the door handle, only to hear her hand oddly clank against it.
A hoof. Viv looked down, shaking from head to toe as her mouth gaped open. “Ms… Tomlin!” She shook, “My dad gave you my excusal slip, r-right? I’m supposed to be visiting colleges over spring break… I can’t do this…”
“Must have misplaced it!” Ms. Tomlin replied cheerily as the whimpering girl leaned against the door, her butt beginning to bloat out with inhuman fat and muscle as a nascent, ropy tail peaked from her rear. Her designer skirt was no match for her growing girth, the expensive cloth tearing to shreds as her meaty butt plopped out. The whole class starred as her anus puckered, the skin on her asshole shifting from brown to black as a bulbous equine ring sat nestled between her thickening equine flanks.
Sasha ambled towards her old friend Viv, attracted by the growing scent of another donkey. The changing girl wailed out as the huge mule tongued her new asshole, nibbling and kneading it outwards as her rear suddenly bloated out into asinine proportions.
“See class, maybe Sasha remembers… or maybe she’s just gotten interested in something else?” Ms. Tomlin giggles as she starts stroking Viv’s grey-furred rear.
By now, Viv was an absolute wreck, her makeup smeared as tears welled in her eyes. Both hands and feet had now hardened into gigantic black hooves as her breasts disappeared behind a tidal wave of donkey fat. That perfectly manicured waist of hers inflated, filling out with donkey muscle and fat as her spine finally snapped into place, leaving the mess of a girl stuck on all fours.
“That’s good, Viv. You only live once – maybe you don’t need college… maybe you don’t even need to stand on two legs, hmm?” Ms. Tomlin teased the changing girl as she knelt down to strok Sasha’s obnoxious erection, precum leaking from that spongey donkey cocktip as she directed it towards the girl’s fat equine tail hole, letting that cock wetly smooch her plump equine anus.
Viv’s shrieks turned into inhuman brays as her neck lengthened, a muzzle shaping around her face as her teeth yellowed and expanded into thick blocks. Drool and snot began seeping from her snout as he eyes grew larger, splaying out on either side of her head as her ears grew into long points.
Another room-shaking bray bugled from the almost-donkey as Sasha hopped on her rear, clumsy hooves hugging her midsection tight as that bulbous cocktip plunged into her plump anal ring. Viv, the girl who was destined to be valedictorian, was getting mounted like an animal. The last traces of her skin slipped under a blanket of grey fuzz as nothing but shreds of clothing even suggested that she was ever anything but a donkey. Her eyes dilated, half-lidded as her human thoughts evacuated from her head, all her expectations and responsibilities evaporating with each thrust from the stallion above her.
“So good, isn’t it, Viv?” Ms. Tomlin spoke to the girl like a pet, Viv’s body growing to Sasha’s proportions as the former-girl started to thrust backwards against the other donkey’s groin. “I’ll board you and Sasha together… she’ll happily get rid of those human thoughts whenever you want – you’d like that, wouldn’t you?”
The teacher knelt down, grabbing onto the bottom of Viv’s bloated equine belly as she kneaded it like clay, causing a fat tube of white-fuzzed sheath to sprout out. As Viv was bred, a precum covered mottled donkey dick peaked out of her, drooling out bestial jizz as a fat sack of scrotal tissue inflated behind it like a balloon.
“HAAWW!” Viv brayed as donkey spunk splurt out onto the classroom carpet, the new stallion caught up in sheer animalistic bliss as Ms. Tomlin forced her to leave her old life behind – if not just for spring break. Sasha nipped against the new donkey’s main as more strong-scented feral seed erupted from her anus, painting her partner’s insides with a gooey load of jackass jizz.
Ms. Tomlin smiled, wrapping another rope around the now exhausted Viv’s neck as she trot her and Sasha in front of the class – two beautiful high school girls reduced to donkeys.
“So… any more volunteers”, Ms. Tomlin smiled, “or do I need to pick?”