Steadying herself with a hand on Ms. Tomlin's desk, Gina looked up at her teacher with a sorrowful look in her eyes. "Please Ms. Tomlin! Why are you doing this to us!" She pleaded in a slightly deeper voice.
"Gina deary, everyone in this classroom will have to go through this at some point or another, you two just happened to be first! Trust me, when all is said and done, you will be have enjoyed this."
"But why pigs? What did we do to deserve that?" Robbie grunted.
"There's nothing wrong with being a pig Robbie! As you will soon find out. Through I must admit, transformations work better when the subjects have something in common with what they become, and, well, you two fit the bill for pigs in spade!" Said Ms. Tomlin cheerily while grabbing a bit of Gina's upper arm fat.
"Hahaha!" Cackled Nelson, the class' resident bully, "You two fatsos are turning into piggies because you're so fat!" The rest of the class joined in with their cruel laughter.
Gina started to cry. Robbie, feeling instinctively protective of her, grabbed her and pulled her body towards his. "Hey! Don't listen to them, you've always looked beautiful to me!" Robbie wasn't lying, gina was genuinely pretty, if a bit ruebenesque. He could easily see her jumping into the world of plus size modeling in a few years. If anything, her slightly bulging body now made her more attractive to his eyes.
Gina seemed to take the encouragement well. She had never really thought much of Robbie before today. He wasn't bad looking, but he was chubby and had a tendency not to talk, so she had never really noticed him before. But now, Gina looked saw Robbie's bulk as pretty attractive.
Their physical changes then accelerated. Gina felt uncomfortable in her pants. They were tight. Waaay too tight. Especially in the rear. Gina's butt was already pretty big, but now she could actively feel it growing. Her thighs soon joined in on the expanding fun. Seams slowly began burst and tear her pants into shreds. After few moments the whole classroom could see Gina's fattened legs, her modesty only covered by her now straining lace panties.
Robbie, whose own growing lower body was also quickly shredding his clothing, caught his first sight of Gina's fattened ass in her pink panties. The panties were being pulled into her expanding derriere, effectively turning them into a thong. The whole experience was making him hard. Above her buttcrack now rested a springy and prominent pig's tail.
Gina saw Robbie staring at her and assumed the worst. She panicked. "Robbie! Is something wrong with me?"
Robbie wanted to say no. In fact the fatter Gina became, the more attractive he found her. But he couldn't tell her that, so he tried to lie. "No, it's just that you've grown a tail..." Just as Robbie was about to finish his lie, his pants ripped off, underwear and all. His massive erection was now visible to the class. But that wasn't all, his dick was now significantly longer, and looked different, almost like a corkscrew.
Nelson wasted no time in his ridicule. "Looks like Robbie's got a big piggy boner for Gina's fat pig butt!"
Before anyone has the opportunity to laugh, Robbie charged at Nelson, his new weight toppling his desk over and sending the bully to the ground. He pinned Nelson to the ground and bared his teeth, or rather, his newly developed tusks. "You say anything bad about me or Gina again and I'll cut you in two!" Screamed Robbie with an almost beastial snarl.
Gina took notice of Robbie's newfound power. She liked it. She liked him better this way. And that dick of his, so big and strong, it made her wet in her...
Before Gina could finish her thought, her expanding growth snapped her panties clean off her body. She looked down and was shocked, her vagina was gone!
She angrily turned towards Ms. Tomlin. "What happened to my vagina!" Her voice now possessed a much deeper and more inhuman register.
Ms. Tomlin remained unfazed. "Your vagina didn't go anywhere dearie! It simply relocated further backwards into your buttocks! Pigs, as the expression goes, do it from behind!" Gina offered a throaty snort in response.
Robbie perked up at that thought and returned to the front of the class. The idea of putting his dicks between Gina's massive ass cheeks was too enticing. His interest did not do unnoticed.
"It looks like Robbie here must have some selective hearing when it comes to the matter of Gina's lovely new rear end!" Laughed Ms. Tomlin.
Robbie and Gina didn't even care anymore about the class' comments, they both now had one thing on their minds.
Robbie approached and grabbed Gina from behind. He basked in her scent. He grunted a single word in her ear: "Mate?"
"Mate." She responded.
He pushed his dick between her ample butt cheeks. As a human, he would not have been big enough to pull this off. Gina simply had too much cushion for his pushin'. But with his new boar dick, he was more than up to the task.
His dick made its way to Gina's new rear facing vagina. She was hit with her first pang of pleasure. At the very least she was relieved to confirm that she still had a vagina. But then something strange started happening.
Robbie proceeded with his first true thrust. With the flash of pleasure, Gina felt her changes accelerate. Her nose began to push out into a snout, her torso began to expand, her hands began to feel hard.
Second thrust. It happened again. Her bra strings began to dig into her broader back, her shoes felt bigger on her feet, her ears became floppy.
Third thrust. The pair of pigs were suddenly sent tumbling to the ground. Gina looked back, her legs were shorter and her feet were now hooves. She then turned up to the boar whose dick was implanted in her ass. He was changing faster too.
"Should I *OINK* stop?" He grunted.
"Why *GRRNNK* should you at this point? Keep *OINK* going!" She replied.
And Robbie did, with each thrust the pair furthered their transformations into pigs. The pair probably never imagined losing their virginities as pigs in front of their teacher and class when they started the day, but life can be weird like that.
It wasn't long before Gina and Robbie were fully grown pigs, collapsed in sexual ecstasy together on the floor of the classroom.