Jen and Claire saw they had two different schedules, so they had to separate and each shared body went to a different class. They found it interesting that they could stay connected anyway and know everything that happened where both of their bodies were, which made them constantly present in two classes at the same time.
They let the first class pass normally, which was strange since they were naked in their classrooms, and only in the second class did they plan to transform their teachers. Jen/Claire in Jen's original body went to science class with Mr Jolie while in Claire's original body they went to Biology class with Mrs. Tompson.
The conjoined sisters sat in front of Mr Jolie, who helped them with some tasks since they had no hands or feet. He only helped them with basic tasks like taking and putting things in them purse or helping them to get a pen, which was stuffed into the urethra of one of their dick-arms (as long as they didn't have an erection she could move them freely) so they could take notes.
In this class Mr Jolie was teaching about the science of how electronics work. After giving an introduction, he said that he had some electronic devices in the room's warehouse and that he would show them, but that there were many and asked who would be willing to help him.
Jen/Claire saw an opportunity there and offered to help him, saying it was the least they could do after all the help he gave them. When they were alone in the warehouse they pretended to lose their balance, falling purposefully on their teacher and taking advantage of his scare to spit a pill directly into his mouth. His transformation started with Mr Jolie becoming a woman, then her clothes changed to a blouse with a big neckline and nothing on the bottom. Jen and Claire realized that now Mrs. Jolie had no genitals between her legs, that they did not continue to exist from the waist down to acquire a metallic color and change shape, which she could not imagine what was happening. back at the beginning but are surprised at the end. The entire bottom half of Mrs. Jolie had turned into a motorcycle, making her a motorcycle-taur. Her human body came out of where the motorcycle handlebars would be and her mechanical body was (at least it was their opinion since they didn’t know much about motorcycles) that of one of the big ones, part of which the only difference for a normal vehicle was that in the place of the exhaust, her asshole was perfectly visible.
"I'm sorry, I got out of balance." Jen said as the conjoined sisters extended their dick-arms to help their teacher get up.
"No problem. I imagine how hard it must be to stand on the tips of your dick-legs." Mrs. Jolie said. They went back to the work they had gone there to do before, but the teacher said "So it won't work, I won't concentrate if I go back to the classroom like this. Could you help me here girls? I am very excited and I need help to relieve myself."
"It's a great idea, I'm also getting excited." Claire said as the sisters dick-arms and dick-legs got herd.
"Excellent. You could start helping by raising my seat, I can't reach the lock on my own." Mrs Jolie said holding out her arm that was nowhere near the lock behind her seat
The conjoined sisters looked to see how they would get the lock off without fingers and being unable to bend their, now rock hard, dick-arms. surprisingly for them it was easier than expected, as they only had to press two buttons next to it at the same time. After pressing the buttons they heard a click and then the seat rose by itself. Unlike what they expected, connected to the bottom of the space under the accent of their teacher's motorcycle body, there was a hole next to a pair of spheres covered by black skin. Soon a pillar of meat, which they soon recognized as a horse's dick, came out of that hole hard, leaving her 20-inch horse meat pillar on display, while standing up and pointing behind her.
Jen and Claire were instructed to ride their teacher and so they did, taking care to get her horse cock into their shared pussy, they pushed and until the teacher member was completely inside them. Once seated on Mrs. Joli's back, the teacher opened what would be the entrance to the fuel tank, through which a normal motorcycle would receive fuel, revealing that her horse pussy was there and asking the sisters to fuck her too. They obeyed and put their right dick-arm inside the pussy of the motorcycle-taur, but she coukdn't put the other one there. Mrs. Jolie then took off her shirt, tossed it aside and began to stroke the girls' dick-legs.
The joint sisters were loving the experience, but they felt that their right stick-arm was very abandoned and deserved some attention, but the two were in no position to do so. At that time someone entered the warehouse, it was Lara, a classmate of theirs who had come to see why they were taking too long and caught them in the act.
"Hi Lara, you arrived on time. Join us, Jen and Christy need help with their dick-arm." Mrs Jolie said.
Unbelievably for them, their classmate didn't complain, she just took off her clothes and joined them as if it were something totally normal.
"I have always been interested in this different body of yours, until finally I will be able to interact with it." Lara said and started to suck the tip of their free dick-arm. Soon she stopped and kissed Jen's mouth, the girl took the opportunity to push a pill directly into Lara's mouth, which she swallowed without resisting. As soon as she swallowed the pill, Lara stopped the kiss and made her stand, a 7 inch dick grew hard between her legs, just below her ballsack formed with balls totally disproportionate to the size of her new dick, because each testicle was the size of a watermelon. A pink line also appeared around her neck, which made it clear what it was when Lara grabbed her head and pushed upwards, separating her body in two, one part just her transformed body with a pussy instead of the head berween it's shoulders, while she held her head in her hands, which had a big, hard cock underneath instead of her neck.
Without saying anything else, Lara went after the conjoined sisters and stuck her dick-neck in their ass, then her headless body bent down and pressed her pussy against the girls free dick-arm, making it penetrate. They didn't have time to hold on, so the girls went with everything and soon Jen and Claire felt the horse seed of their teacher's orgasm being deposited inside them, which led them to come too seconds before Lara reached her own orgasm.
Once the orgasms of the motorcycle-taur and the sisters were over, Jen and Claire left the teacher's back, but Lara was still coming. The joint girls could see the cum was still coming out of the dick of their classmate's headless body (what they imagined it would take to finish due to the size of her balls), from which the dick-neck kept depositing more and more cum deep inside their asshole.
"Quick, put Lara's head on my back, we have to go back to the classroom." Mrs Jolie said. Her seat was already lowered, but not locked, since her erection was gone.
Jen and Claire obeyed, took the dick-neck off the girl who was still coming, from their ass and put her dick in Mrs. Jolie's vagina before returning to the classroom taking what they had fetched, leaving Lara's body cumming alone in the warehouse.
Mrs Jolie's horse cock soon appeared under her seat when she got excited again, but she tried to ignore it while teaching with one of her students cumming inside her pussy.