Mr Mendes glanced at his grown-up students lined up in front of the classroom. All the boys had suddenly gone through puberty due to his magic book and now he's using it to control them through their dicks.
"It's amazing the bizarre stuff I can make with this book." Mr Mendes said as he looked for new spells to use on his students.
"Mr Mendes... How long is this going to last?" Sanjay, the only remaining kid in the classroom, asked his teacher.
"I don't know. I don't really have a plan." Mr Mendes replied. "Things just happen. By the way, Sanjay. You know you can't be a kid anymore, right?"
"I know, mr. Mendes. Please, make it fast."
Mr Mendes smiled before he used his age progression spell on Sanjay who immediately started to grow up. His whole body seemed to stretch and grown longer all of sudden.
"Wha-whoa!" Sanjay tried to stay quiet as his body began to suddenly transform. He was almost as tall as his teacher now. He looked down and saw his belly button peaking from underneath his now very tight shirt. His pants barely covered his legs now.
Everyone else was watching how their little friend from India was catching up with them. Sanjay's stomach started to growl and then his whole body started to tingle.
"Oooooh!" Sanjay felt uncomfortable. He looked down at his shoes and saw his feet starting to push through and stretch them to their limit. One by one he watched his toes burst out in front of him followed by his feet getting so big they ripped through his shoes entirely. The growth continued up his legs as his calves and thighs grew larger ripping right though his pants leaving the lower half of his body in just tight underwear.
"Uuuuh! It feels weirder than I expected!!" Sanjay tried to keep the rest of his clothes from ripping but it was too late. His arms were already starting to grow thick with muscles. He couldn't help but flex his growing biceps. His back and shoulders grew so wide that his once loose fitting shirt didn't stand a chance. Sanjay's only piece of clothing that remained on him was his now tight fitting underwear.
He looked down at his torso and noticed that his body began to form a thick broad chest and lean abs to match his strong arms. His face began to transform into one resembling a 26 year old version of his 10 year old self. He took his large hands and felt his new face. It was so firm and masculine. While he explored his new face he didn't realize about the growth that was starting to happen inside of his tight underwear but mr. Mendes and grown-up classmates did.
Sanjay's small boyhood began to bulge inside his undies as it grew larger and larger. Until he was abruptly interrupted by the sound of a loud rip from behind him. He cupped his now thick butt with his hands and was shocked by how big it was now.
"Ok, I admit it! It's still pretty embarrassing!" Sanjay confessed as he blushed in shame. Then, he started to feel something really weird. It was making him giggle quietly and then he realized that his balls were starting to drop.
"Uuuuuh!" He softly moaned as he felt his dick growing longer as it began to fill his tight underwear and stretch it to its limit. He moaned again, this time louder and embarrassing himself, as his underwear ripped off and let his big balls hand low between his thighs. However, his dick become fully erect and his foreskin retracted to show off a fat purple dickhead pointing upward.
Sanjay was in a mix of bliss and shame as he started to stroke his thick cock. In the middle of pleasuring himself, he was interrupted by mr. Mendes' second spell and he stood still like a soldier with his erect dick still pointing up.
"You may continue." Mr. Mendes told him.
Sanjay's face turned completely red when he realized that he was jacking off in front of all his friends who can't take their eyes off of his manhood. Sanjay tried to stop but the urge to do it was way more stronger, so he managed to turn around hiding his dick with his muscular body and thick ass.
"Uhh, I’m sorry guys! I tried to stay in control but I can't go against these feelings!!" Sanjay couldn’t stop stroking. "Help me! I'm too horny!" Sanjay felt a pressure starting to build inside of him. "Uuuuuuh!! Oooh!!" His dick released a thick white substance all over the classroom floor.
"I'm sorry!" Sanjay said embarrassed. But Mr. Mendes just smiled and said.
"It's okay big boy, you had a big growth spurt. It’s normal." Mr. Mendes put a hand on Sanjay's shoulder and smiled. "Now, go and line with the others. There's something I need to tell you all."