Teaching a Lesson Part 09

The school day was rapidly coming to an end. Mr. Duport had had so much fun watching everything around him change, that he almost didn’t want it to end. Maybe it was just seeing the smiles on guys faces like Officer Fuckface or Principal Shitbag. Even with the students he’d changed as well. They all looked so much more confident and happy to be in school. 

However seeing Coach Malin running down the hall he got a little concerned. “Hel-lo sir,” he panted. Despite being the coach of all the boy’s gym classes and even some of the sports teams, he looked like he hadn’t visited a gym in his life. His small petite frame wasn’t meant to ever take a hit. If he was ever out on the football field, it would have been devastating. Though, thinking about their football team, a little over half of them were about his size. 

Mr. Duport shook his head, thinking about fixing that later. “What can I do for ya?” Mr. Duport asked. His eyes tried to stay above the man’s waist as a stain started to form between them. 

The coach’s body had squirmed ever so slightly as he tried to ignore the euphoria that filled his mind. “Sir,” a wry smile was still planted on his face as he tried to get to his point. “I was just… Uhh… Wondering… If you would… Be… Uhh… Interested in showing me how to work out.”

“You want me to show you how to work out?” Mr. Duport tried his best to ignore the second moan that came from the other teacher. Coach Malin had been fascinated with Duport before he was changed into the massive powerlifting stud. He’d always said Duport was so masculine even when he was just the bookish little english teacher. Now Duport wondered if he’d be able to say something without the other man cumming. Cody had always mocked them about being a couple. It’s just Coach Malin wasn’t really his type. 

“I do…” Coach Malin bit into his bottom lip, hard. His whole body was on edge as he waited for an answer.

“I can do that,” Mr. Duport said. It brought a complete release from the other teacher. “Let me just tell my class what to do, and then we’ll go to the gym.” He looked into the class and told them to work on their assignment for the entirety of the class if they hadn’t done any of it yet. Not to his surprise, every student pulled out their project and started working on it. “This generation…” he groaned. Though, he knew it wasn’t much different from any other one he’d taught. 

The two headed towards the gym. Now that there was so much more of a difference between them, Mr. Duport couldn’t help but feel a little bit differently. Maybe it’s because Coach Malin only came up to his pecs or that he knew that he could lift his 80 pound body like it was nothing. Something inside Mr. Duport made him a little giddy. He walked into the high school’s gym and started typing away on Cody’s phone. ‘By the end of the workout Coach Malin will be a massively muscular man. He can stay that way if he likes it.’

“Ready?” Coach Malin’s higher pitched voice asked. He stared bright eyed up at Mr. Duport. Despite being several years older, he just felt so young and innocent.

“Ready,” Mr. Duport said. He watched as the Coach squirmed and another mess dripped down his khaki pants. “One second…” he muttered, fixing that little problem the coach was having. “Alright, let’s get started with something easy.” Mr. Duport led the other man over to the weight rack. “Pick out something that would be comfortable.”

Coach Malin stared at the 5 pound weights and grimaced at them. His hands reached out but wouldn’t quite grab them. “Whatever’s comfortable?” he asked. Mr. Duport nodded. Coach Malin finally went and grabbed the 3 pound weights that were on the floor. “Okay. Ready.”

“Right,” Mr. Duport tried his best not to make a look of disapproval. Nothing would have been worse than making Malin want to give up before they even started. He just hadn’t realized just how much help the coach needed. “We’ll start with basic curls. Alright?” Mr. Duport picked up the 20 pound weights, trying his best not to brag. If he really wanted to, he could have lifted the coach up with that extra 6 pounds he was holding, but felt that might be a bit much. Even if it would have been fun.

Mr. Duport started with curls and watched as Coach Malin followed. The small guy finished his set and looked almost confused. “Is something wrong?” Mr. Duport asked. 

The coach’s body still squirmed under the sound of his voice. It’s not like Mr. Duport didn’t like seeing it. “Wrong? I don’t know… Is it supposed to get easier as I do it?”

“Well… Yeah,” Mr. Duport chuckled as though everything was alright. “Most things get easier as you do it.”

“Ok… But… This quickly?” Coach Malin asked. “These feel so light now…”

“Maybe you just got the wrong weight. Try these,” Mr. Duport handed him the 5 pound weights instead. He watched as his tiny body pumped out another set of 12. Again, there was confusion on the Coach’s face. “Something wrong?” he pretended he couldn’t tell what was going on. But there was already a little bit of muscle starting to pack onto the coach’s frame. His shirt fit him ever so slightly tighter and those khakis were starting to rise up showing off his ankles.

“I don’t know…” the coach was still skeptical of this sudden growth. After being in the gym for so long, it was unlikely that he’d never attempted to pick up the weights before. But after two sets it looked like he’d gained almost 10 pounds. “Maybe these are a little too light too.” He set the five pounds weights back down and picked up two 10 pound ones. “Maybe these are better.”

Coach Malin went through the exercise again. Each time lifting it, there was an ever so slight bit more of muscle gaining onto his body. There was the slightest bit of a curve around his bicep. His forearms looked thicker. Shoulders wider, stretching his shirt tightly against his chest that had the tiniest showing of two bumps. The polo started to pull out from his pants while those rose slightly more.

“Better?” Mr. Duport asked.

“Better…” Coach Malin stared at the weights. None of this made sense. Consciously, he knew they should have been too heavy, but they weren’t. Even now, they were starting to feel light. He pumped out another set. It should have been making him more tired, but it just felt like they were lighter. “That’s so strange…” he said.

“What?”

“Maybe I need to raise the weight again,” Coach Malin said.

Mr. Duport smirked to himself. “Let’s just try a different exercise. It’s called a tricep extension. What you want to do is fully extend the weight above your head and slowly lower it behind your head.” He demonstrated it and smiled at the awe in the coach’s eyes. “Just make sure you have complete control over the weight. Don’t want to drop it or tear a tricep.”

“Right… Do you think…” then the coach raised it above his head and lowered it again. The first rep was shaky. Then less so. Then almost not at all. Then comfortable. And then it was light. ‘How was that possible?’ But Coach Malin kept trying it and it just kept feeling better and better. He set the weight down and then tried to think. It was just so annoying how tight his clothes were. ‘Was that right? They almost felt loose this morning.’

But looking in the mirror, his answer was given. “Woah! Is that me?!” he walked closer examining the strange image. It wasn’t him. But it was. His small shirt was currently straining against his body. It’d risen high enough to show off the definition forming in his abs. He raised it a little more to see. His weight had almost doubled as he finished the third set.

“Is this right?” he looked to Mr. Duport for some kind of support. 

“Is what right?” Mr. Duport pretended he didn’t see. Though, the slight smirk should have given him away. Coach Malin finally look more like an average sized man stretching his clothing to the limit was just so funny looking. Every bit of it strained against his growing body. He was just a little muscular, but that was enough to make the small clothes excessively tight. The button holding his pants closed had popped open, and Mr. Duport was surprised what was hiding down there. It may have only been average but what the coach had been packing before it was absolutely massive.

“I don’t know…” Coach Malin looks over his body; confusion still spreading through him. Why were his clothes so tight? And was he always this muscular? He raised his arm to give the muscle a flex. There was an actual bump there now. Not just the smooth lean outline of his bone. “Woah…” it was almost a moan as he ran his hand against it.

“Do you want to continue?”

“Absolutely!” Coach Malin said. He followed the other man around doing all sorts of exercises; pull ups, lat pull downs, rows, and more. It was the same as the other exercises. But even easier, as more and more muscle was adding onto his frame. He could feel the strength building up inside him. Easily passing 160 pounds. Rips and tears started to form in his shirts and his pants squeezed against his legs. Then 180. There was a massive hole in the back of his shirt rapidly growing. His pants were straining against his legs. Then 200. It was too much. He tore the shirt from the front off. Most of it was about to go anyways. Everytime he moved his arm, the thick 17 inch bicep would tear more and more off of him. He flexed his thick quads and heard the satisfying rip from his pants. They were at least two sizes too small on him and unable to take the pressure they were put under. 

Even as they walked between exercises he seemed to grow even more. His toes pushed out of his shoes. And the thickness of his feet absolutely destroyed their confines. The socks were stretching to compensate but even they looked close to their limit. He was a good foot taller and 150 pounds heavier than he was in the morning. Strength filled every bit of him. Even though his trim waist was packing on a bit of extra weight, he didn’t mind because he could feel the strength it was giving him.

As he bent over to perform a deadlift, he loved seeing the numerous 45 pound plates on each side. He’d barely been able to move them, now he had at least four on each side. And just like every other exercise it was easier with each rep. 

“Woah…” Mr. Duport said when the coach finished the set. They were eye level now. 

“What?” Coach Malin tapped Mr. Duport with the back of his hand. “Afraid I’ll get bigger than you?” But he already was by a couple of pounds. And he strut his naked body around with an excessive amount of confidence. His hands rolled through the thick hairy pelt against his stomach and chest. The abs had faded but there wasn’t an excess amount of fat either. 

“N-no,” Mr. Duport felt himself stutter. Sure, Coach Malin was cute when he was so small. His thin arms and soft features would have been fun to play around with. But now? He was so different; strong and powerful looking but not brutal. The floppy hair style had left the top of his head and migrated down to his chin. His eyes were focused and knew what they wanted. And that new found confidence was something else. “I just figured we were finished.”

“Finished? But you haven’t even shown me how to use the bench press,” there was something behind what the Coach said. His voice was soft and almost seductive as he wrapped his arm around Mr. Duport’s shoulder. Now he was looking down at the other man, leading him towards the bench. 

“Okay…” Mr. Duport said. He didn’t realize how much he was being directed as he looked up at the other man. Now the coach was an inch or two taller. His thick meaty arm rested over Mr. Duport’s should but the teacher was too distracted by the coach’s throb in his cock to really notice anything else. 

They racked up the weights on each side of the bar and Mr. Duport laid down onto the bench. He reached up and grabbed the weight showing off the exercise. But what he didn’t expect was feeling a couple of fingers grab at his pants and then pull them around his legs. He winced, catching the weight before it dropped on him, and shoved it back up onto the rack. However, before Mr. Duport could lean back up, he felt the weight of Coach Malin bring him down. 

The Coach’s long thick body slid under Mr. Duport’s shirt, up over his thick hairy muscles. A light amount of sweat was building on his body, simply for being in the gym. Coach Malin went in for a kiss. Their hairy faces met. “You didn’t teach me about cardio either…” he smirked.

“Cardio? What’s a big guy like you need that for?” Mr. Duport feigned ignorance.

“You know…” the coach wiggled his hips. “For things…” Mr. Duport’s dick started to liven up. Blood was flowing there instead of to his muscles. “I think you know the things,” Coach Malin went in to steal another kiss. 

Mr. Duport couldn’t do anything. Despite being so big, Coach Malin was even larger. And somehow still growing. His weight easily held the teacher down. And then feeling his hips wiggle back as a hand guided his thick cock against that tight asshole, Mr. Duport let out a grunt. “Feel good?” Coach Malin asked.

“Uh huh…” Mr. Duport moaned as he felt more and more of it slide into the coach’s assholed. He could feel it gripped all over Coach Malin controlled how much pressure he put on it while sliding deeper inside. Mr. Duport was surprised when his tip hit a wall. Or maybe it was the way Coach Malin threw his upper body back in elation. And then there was that deep guttural moan that shook the weights in the room.

Mr. Duport leaned up for a second only to be pushed right back down by one of the coach’s massive hands. Somehow it seemed to reach all the way across Mr. Duport’s broad chest. “Nuh-uh,” Coach Malin waggled his finger. “You already did so much work. Now it’s my turn…” He slowly started to use Mr. Duport’s dick as a piston, rising slowly and then dipping back down. Despite all his weight, he had so much control over it. 

“Oh God!” Mr. Duport cried out as he felt it speeding up. His hands looked for something to hold onto but the only thing there was the coach’s legs. He did his best to control his moans, but those were rapidly becoming less so. Each new thrust he felt like he was going to go over, but held himself back on the edge.

“You feel good? Think about how I feel…” Coach Malin panted. His huge dick was resting on Mr. Duport’s roided out belly but throbbing with each moan that came out of the other man. “You finally see me… Damn, it feels good…”

Heat radiated between them. The gym was growing even hotter. Sweat drenched the shirt Mr. Duport was wearing while the meaty body on top of him just dripped it down onto him. With each additional thrust he didn’t know how much longer he could hold on. That battle was quickly fading. And then turned into an unceremonious, ‘Uh!” that let the coach know he could finish as well. Thick wads of cum shot out of his dick all over the teacher’s shirt.

The smell of sex finally permiated Mr. Duport’s nose. He struggled to get up but got a soft push back down from Coach Malin. Somehow he’d grown even larger. When he stood up, he was easily 7 feet tall and most likely close to 400 pounds. It was insane seeing just how much muscle and strength was packed into that body. Compared to Mr. Duport, he truly was massive.

“It’s alright. Rest now,” Coach Malin said. “I’ll get us some fresh clothes to clean up. Okay?”

“Okay…” Mr. Duport said. Just now, he realized just how hard it could be to carry around this much weight. Sure it was nice to be strong, but having a bit of endurance would be great too. ‘Just add that to… Fuck it… Just give me a minute,’ he laid back on the bench.

“Awe shit! It smells fucking awful in here!” Cody’s voice broke through the silence.

“Speak for yourself,” another guy said. 

“Shut the fuck up,” Cody ordered. “Go cover his mouth and hold him down!”