Calvin lead his daughters and step down the halls of the school to their next class; biology. Sally in his GF's body with her massive hands fell behind them as her big mitts clogged the hall and people had to either duck away from her as she passed, or brave being pushed aside into walls and the like by them. Zoe had a different problem, her MILF body's huge feet could only take short steps, having to wait for people to clear space, or for step to make space for her to step , corralling people like a reverse sheep dog.
Naturally Calvin just moved along reaching the classroom before his two girls. Infact, it seemed he was the first one in class today. Ever the opportunist Calvin readied the remote.
Biology was an interesting class, the teacher Mr.Bloom kept a significant number of animals as pets and learning aids: insects, reptiles, small mammals and birds galore. Somehow he'd managed to train the birds to keep quite between bells. He kept other curios were mounted on the walls, pinned moths, butterflies, bugs and even a few rock fossils. Most unsettling of all however were the jars of preserved animal fetuses! The macabre shelves that lined the wall filled with jars had all maner of animals within, deer, horses, cows, even an elephant lay preserved in fluid in a barrel sized jar. Calvin had always been freaked out by them but now he saw them as potential.
With now practiced ease he swapped roles with Mr.Bloom. the 40-something man then stood up from his desk and took a seat in the class, once seated he seemed to come too. He raised a hand in greeting, "good morning Miss...."
"Please David." Calvin interrupted "you know I prefer my first name." "right teacher Calvin. Sorry, its just how I was raised..." The middle aged adult looked embaresed at the exchange and averted himself to reviewing notes he pulled from a bag set beside his desk.
Next to enter the room was Marigold. The bright sunshine blond hair that fell from her head in curly waves was both her namesake and her actual name. How her parents had predicated such a thing was beyond Calvin's grasp. Besides her beautiful and vibrant hair marigold also sported a dash of light freckles across her nose and cheeks, her figure was bottom heavy and today was dressed in green, loose fitting overalls and a designer t-shirt, one shoulder strap undone fashionably to show off the shirt beneath. If Calvin remembered correctly her family did own a farm. Marigold never stood out much in school besides her fashion sense, Calvin decided to change that a bit.
Firstly he swapped the ages of marigold and Mr. Bloom! Before his eyes the hourglass of time for each subject seemed to flow in their respected directions!
Marigold aged mid stride to her seat. Her loose fitting overalls tightened around her hips and thighs as her legs extended and broadened. Her pants rolling up to hug her cafs and revile her dainty ankles. Her single strap shoulders as soon a regret as her breasts came into their full matured size revealing some midriff under the flap of the overalls and it seemed she'd either not been wearing a braw to begin with or had just rapidly outgrew it as her breasts swayed and jiggled freely beneath her top. Her perfect figure soon gave way though as her belly bulged with a plump muffin top, her breasts sagged just slightly enough for Calvin to notice and the early sights of laugh lines an crow's feet swept over her face. Marigold had hit her forties that's for sure, but she still had a desirable MILF body with a little extra cushion for the pushing.
Mr.bloom went in reverse. His pudgy body slimming down and narrowing, his short combed hair growing unkempt and surprisingly fluffy. As his years melted away the gruff burley teacher became more twink like, sporting a swimmers physic and a pouty chiseled face that rivaled Abercrombie & Fitch models! It seemed to Calvin that both his new 'students' had benefited from his tampering.
A commotion from the door signaled the arrival of his two daughters, Zoe with her big hands filling the door frame and Sally's huge feet doing the same after. They paid Calvin no mind at the front of the class, likely embarrassed by their mother being the teacher of their class.
"Everyone have a seat, I'm just compiling my lesson for today. The projector is on the fritz today, don't mind me" he said. With the cover story up he began setting the stage.
As the class arrived one by one he selected them with the remote making a show of fiddling with the projector. Each student received an inhibition swap with his daughters making them all rather open to any sexual behavior and the such, as well as a neglect for the remote.
The final bell rang just as he'd finished with the class, leading to his next step.
"Alright class I'd had some slides prepared for you all, but due to technical problems..." He made a gesture of flailing his hands at the projector. "Ill be doing an improvised lesson today."
The whole class let out a groan for some reason, more reality altering from the remote? No bother, Calvin would have fun with the 'lesson' and he suspected the class would too.
"So today we will be exploring unique examples of genitalia within the different animal kingdoms..." Multiple heads perked up in the class at the mention of this.
He went back to the remote picking a banana slug encased in resin used as a paperweight on his desk, selecting its sex and swapping it with the former Mr. Bloom. No real change was immediately observed. His chin and cheeks narrowed, his hair lengthened an inch or too, but his baggy teachers clothes obscured his body.
"Mr.Bloom, would you mind coming to the front of the class? I'd like you two help with a demonstration."
"Yes Teacher Calvin, and sir, I would prefer if you called me Mrs. Bloom."
"My apologies Mrs. Bloom."
The twink former teacher took his place at the front, notably with a bit of sway in her step.
"I've asked Mrs. Bloom to help demonstrate this first example. Mrs. Bloom please undress for the class" Calvin instructed.
Without missing a beat Mrs. Bloom began undoing their tie and shirt as Calvin continued.
"Mrs. Bloom here shares a unique trait in the animal kingdom of mollusks, that is to say she is a hermaphrodite, born with both male and female sexual organs."
Mrs. Bloom had just let her boxers slide to the ground revealing her naked lithe body. Much of the twink frame was still there, her hips had flared just a bit and her abdominal muscles were not as defined, small A-cup breasts set on her chest so meekly they were hard to distinguish, but the puffy mamery curves were present. Between her legs however sat a smooth, shaved pussy.
"Mrs. Bloom would you mind arousing yourself to show the class your duel genitalia?" Calvin instructed.
"Yes teacher." She said coyly. She began to fondle her petit breasts and rub her feminine folds, she made quiet gasps and inhales as her pussy parted slightly, revealing her pink moist labia and a budding clit that crowed her glistening nether lips. As she continued her clit became more prominent reaching an inch then two out past her lips arching upwards. When it was large enough she took her fingers, pinching its length and rubbing up and down, each stroke giving the illusion she was pulling it out of herself. When it was 5 inches in length she grasped it with her dainty hands and began jerking off her clit which with each lump took on more and more definition of the average male cock.
The whole class was enthralled with the demo now. His own daughters were visibly aroused and a few other students appeared to be fidgeting in their seats.
"That's enough for now Mrs. Bloom." He instructed. His student stopped at his request, 6 inch member twitching and pussy dripping with juices before the 20 or so classmates.
Calvin took the remote preparing for the rest of his lesson.