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Deku sighed to himself as he stood outside the door to the onsen and looked up at how it towered over him. He had admittedly tried to get it open himself, but he had to wait for his friends to let him in. This place was definitely not geared for someone like him, and he was only here because he tagged along with some others.
He was short. Many guys (like his friend Bakugo) called him tiny. He was just short of five and a half feet tall, and while he had read many times that in ancient history, while he may have been short still back in the day, it was more a couple of inches difference. Now? He was at least two feet shorter than the average man, if not more. And yet, there were more with whom he barely came up to the knees on, even if they were not the most common. Guys like Izuku were definitely the most rare, though, where he did not have any massive growth spurt, no gene for such hyper growth.
Things had changed massively in the years since most everyone's growth spurt had hyper accelerated. Of course everything had to be built to handle guys of such varied sizes and be able to withstand them. While many places tried to handle all possibilities, some like this onsen specifically catered to the larger guys. Fortunately it was easier to build such enormous structures when you had guys sized for it. Deku had always wondered what it might be like to be such a titan, but he was doomed to forever be so tiny. Maybe if he studied enough, one day they could figure out more about this mysterious gene that caused everyone to grow so much and get some benefit, though that was half done out of obsession of these giant men and the fact that he could worship them under the guise of research. It was all so strange, but it was the hand they were dealt with. He had actually read a paper recently where a scientist hypothesized that a slight variation of the gene, perhaps a version in another universe, might have given everyone super powers instead of such massive heights, but he wasn't quite sure on that. It was neither here nor now.
He heard the telltale heavy footsteps in the distance and looked out to see Bakugo and Kirishima approach from the utterly massive jeep they road in. They exchanged waves and smiles, before Kirishima extended a hand to grab the door handle (which was still a bit high for him, but he could reach it unlike Izuku) and let everyone inside.
The three had been friends since high school, while him and Bakugo had an even longer history. Ever since Bakugo had gotten his growth spurt and shot up to be over eight feet tall, he had made sure to rub it into Izuku's face. It had started as more vicious bullying in the early high school days, before it mellowed out to just teases, especially as Izuku had accepted his own height and Bakugo had proven himself a friend as he fought off a guy twice his height that had almost stepped on Izuku on purpose.
The way Bakugo stomped down the hallway, he tried to seem larger and more intimidating than he was, where he tried to make his footfalls as loud as a 20 foot tall man's. He certainly had the attitude and confidence to back it up. Though, Izuku had figured that Bakugo would be roughly the equivalent of someone who was six foot or so back in the day; above average but barely. Even if he towered over Izuku, Bakugo was an absurdly common sight now. And somehow, it did not dull how much Izuku loved to check out the bigger man.
Kirishima made sure that Deku made it in before he let the door slam closed, the massive entrance made for someone twice if not three times the average height. Kirishima was big enough to handle it, but still had to be less than half the size of the door. He still stood a good foot, foot and a half over Bakugo as the biggest in their small group. And he still did not make as much noise or fuss about it as Bakugo did.
And Bakugo was really the only one that made any sort of a racket right now, as he went ahead to grab their keys and request a bath. There were not many guys around, a purposeful decision on their behalf. It was still Thursday night, which seemed to be the slowest of the days here. It was still at the end of their busy weeks so they could relax but it was not quite the weekend still, so there were not too many guys around. Izuku often got stares when he was here, or anywhere really. Even if you only saw guys that were twenty feet tall a few times a week, it was even rarer that you saw an adult under seven. So, they all agreed it was best for them to come on the slow nights.
"Bad news," Bakugo said as he returned with the keys for them all, "Most of the baths are down for maintenance, so the emptiest still has another guy. So one person's gonna see the little shrimp."
With the last word, he dropped Izuku's key to him.
"Don't worry, it's just one person, we won't let him bother you," Kirishima said as he put his hand down onto Deku's head and half-engulfed it. "Besides, I doubt they'll notice with all three of us. We'll just look like a regular group of friends."
With Kirishima's reassurances, Izuku went along with it before they found themselves at the lockers, where they could strip down and get clean towels. Izuku had seen his friends naked countless times and in countless situations, though he never grew tired of their muscular, enormous bodies. Especially the cocks that swung down between their legs, decently big for their heights, and even if taller guys could easily show them up, Deku still loved what they packed. He looked down at himself before he got his towel around his waist, average, or what would have been average before everyone had gotten so much bigger. If even that.
He was jolted out of it by Bakugo's hand on his shoulder, who tried to urge him to come along. Izuku smiled up at him and quickly fastened the towel around him - it was the smallest this place had and it covered his entire chest and most of his legs. It did slow him down a bit, so once he had begun to move, Katsuki moved ahead of him again to lead the way to their bath.
"Come on, I bet the guy's just like you. Some shrimp hiding out to avoid the real m..." Bakugo had reached the sliding door and pushed it open and seemingly immediately froze. His lips just moved up and down on auto-pilot, "M-m-m-men."
Izuku raised a brow, as he wondered what in the world could have possibly elicited such a response from his friend, but he did not get too much time to muse on the possibilities as someone else's curiosity got the best of him. He was shoved forward by Kirishima, pinned between the two bigger men as the redhead wedged himself into the door frame next to Bakugo to get a look as well, with Deku just stuck between the two of them, on his tip toes against his own will. And his eyes went wide, just as Bakugo's had.
Now, it was common enough to see massive men. A dude over twenty feet tall might have only been spotted every few days or so, but that still was not what anyone would consider too rare. It was still a normal occurrence. They might get some longing looks and stares, but it was the same as when you spotted someone incredibly hot in general. Not a constant thing, but it happened often enough to not think too hard on it or spend too much time on it.
On the opposite end, men like Deku, who had seemingly not inherited the growth genes, were decently rare, maybe one spotted every week or two (unless you were one, like in Deku's case). He was always told less than 10% of the population, but that seemed to go down constantly as there were less with every generation. Maybe the super tall studs were something like 30% of all men.
What they saw surpassed that by far. Both in the spectacle and the rarity. Izuku had heard rumors that about 1% of men got even taller than others, and that was probably rounded up. This monolith loomed over even the tallest guys he knew personally, but given their response, it seemed like just his presence made Bakugo and Kirishima feel like they were as short as Izuku was, and that made Deku feel like a mouse in comparison.
The stud had to have been at least 40 feet tall, though he was semi-slouched in the giant room here. At first, they only got a good view of his legs, which had taken up the majority of the room that they could reach. The pool that was made specifically for men that were on the larger size was mostly dominated by just this guy's calves and feet, while his thighs were spread in a way that framed the sides of the onsen and brought every bit of attention towards his nude crotch, which was appropriately gigantic to go with the rest of his size.
Izuku had never seen anyone this huge, nor did it seem like his friends had either. They just gawked a bit as they all stood in the doorway, and Izuku even momentarily forgot that he was crushed between two huge studs.
"Is that...?" Kirishima looked up over the man that was there, as he pulled away from the others to take a step in, and had to even squint to get a good look at someone so tall. "It is. Inasa Yoarashi. He went to a different high school, last I saw him he hadn't had his growth spurt yet."
Inasa was asleep in the pool as he took some long bath, or an attempt at one anyway. Perhaps that was what the maintenance was about, they had to dig down and make one large enough to handle guys like him now. If there were any others this huge. He certainly barely fit in the whole area as it was now, a mountain of rocks now a chair for him to slouch back in as his lower legs soaked, and the screens on the sides couldn't hide him even with that. Those enormous and muscular thighs would work as screens if he somehow knocked the others down, and even on the edge, they took up over half the pool.
It was impossible for Deku's eyes not to linger down between those legs. Everything was proportional, of course, and he couldn't help but assume that Inasa would have been incredibly hung even back when Kirishima knew him pre-spurt. Not it was like a limp tree trunk dangled down into the pool, with some balls that Deku's larger friends could get lost in if they used them like bean bag chairs.
"It'd be rude to not get in just cause some big guy's here," Bakugo finally spoke up with a shrug. He looked to his friends before he moved over towards the water and started to step right in. "Can't really judge him for it."
Izuku blinked. It was true, you kind of had to deal with the fact that guys were super massive here. But was it a smart idea to get in the pool? It looked like Inasa could close his legs suddenly and they would all be pancakes.
Still, he didn't get much choice in the matter as he felt Kirishima's hand on his back to reassure him and guide him into the water. Soon enough, he had to float out to the middle of the bath, while his friends took point on either side. Bakugo even moved to lean back against a thigh, given that all the actual borders of the pool were taken on his side. Meanwhile, Izuku was thankful he had an excuse to blush thanks to the hot water, as he looked between those two to try and clear his mind, but no matter where he looked, his eyes found Inasa and followed his legs up towards his crotch.
Izuku's eyes widened in shock as he saw that cock stir just a bit, which created small waves in the water. There was a groan from up above, and he looked up to see Inasa with a dumb smirk on his face, while still completely asleep, even a bit of drool on his lips. He apparently had some nice dream, and it went all the way down to his junk, which gave a few more small throbs before it started to lift itself free of the water. Izuku figured that this must be why people went whale watching or something, as an utterly enormous manhood began to breach, as it lengthened up and swelled in size, enough that it began to support itself. It rose up slowly and steadily, what felt like hours of suspense for Deku, before the tip managed to pull itself up and out to complete the package.
By this point, it had grabbed everyone's attention, partly because it had made the onsen go dark. It hovered up and over the trio, suspended in place above their heads where it gave small jumps every now and then as blood rushed through it. It had to have gone up to his pecs if it stood straight up, if not more. At least the giant would have been able to suck himself off easily if he couldn't find anyone able to survive sex with a 40 foot man. It seemed completely unreal, but there it was, right in front of their faces.
Izuku was so drawn to it that he didn't even notice that someone snuck up on him. He had always had a thing for these bigger guys that was impossible to hide, where he totally loved to stare at his friends, let alone the much bigger guys, and this was something so far above and beyond anything he had dreamed of, and Bakugo knew it. He had shifted over in the water before he suddenly wrapped an arm around Deku and pulled him close.
"Dare you to touch it," he called out as he moved a bit further in towards the back of the pool, where their vision was filled with ball sack when they looked forward and completely obscured by cock when they looked up. "Come on, I know you want to. And he's fast asleep..."
Bakugo didn't stop there. He slunk behind Izuku and reached down under him to grab him by the sides and lift him up. Izuku squirmed about, before he was raised just a few inches away from the shaft, lined up alongside it. Bakugo wasn't going to push him all the way, just leave him in a prime position to take the bait. Izuku went still, more out of shock than anything, as he seemed to inwardly weight the possibilities. And then he went for it.
Izuku reached his arms and legs up and around that shaft, to cling to it like he was on a jungle gym, to cling to it and press his body up against it. He licked at the shaft a few times from underneath, though it seemed completely unnoticed, as the giant above continued to snore away. Only when he began to rub his entire body up against the cock did he get any sort of response, which was just a pleased rumble and some heavy twitches of the wet shaft.
It was too hard for him to hold on, and he did eventually slip right off, back down into Katsuki's grasp. Bakugo turned and sat him down in the pool, right next to Kirishima who had slunk in a bit closer for a better view as well.
"Satisfied?" Bakugo asked with a wicked smirk.
Izuku looked up to Bakugo, then to Kirishima, then up to that cock. He quickly shook his head, turned around, and dove back in. This time his goal was to get on top, where he wouldn't fall off as easily. So he began to scale that thigh. He crawled up over it, where Kirishima actually pressed a hand to his ass to help him up and onto that leg. He had to stop there, to hug it, regain some energy, and nuzzle his face down into this amazing muscle.
Slowly he shimmied up along the thigh, as his cock trailed underneath him and left a small stream of pre as he went. Kirishima moved alongside him, hand raised to make sure that he made it up to Inasa's crotch, were Izuku managed to stand up for a moment, before he leaped forward onto that cock. It was several times his height, and it took him a lot of energy to crawl along it up towards the center of the cock. Even as he watched Izuku, Kirishima stayed back as his hands continued to brush over those thighs, in awe of the muscles, as if his digits had been pulled in to give the man a deep massage, as much as he could manage it, without a word to command him to do so.
From there, he hugged it as tightly as he could from above, to jump downwards on it and slather his tongue all over the entire length. It was sensory overload for him, and he had completely forgotten the bath and his friends, even as they had moved to help him. Bakugo and Kirishima reached up from the onsen, to brush their palms up and down Inasa's cock, just as amazed about how such a titanic rod could exist, even in their world full of hyper sized men. It had lured them in, and they couldn't help themselves, even if Deku was far more lost to lust than they were.
Izuku continued to shift his hips and body, to both hump at the cock underneath of him and to crawl forward towards the the tip of it. Even as he got past the halfway point, the shaft didn't bow even in the slightest. Deku's full body wasn't enough weight to cause the cock to dip back down towards the water, truly the same as if a fly had landed on the cock. It seemed like Inasa might ever notice he was there no matter what he did.
Eventually he did reach his goal, where he crawled up around Inasa's cock head, arms and legs wrapped around it tautly. He moved his face in to lick at the slit there, where he could easily shove his tongue inside and lick at everything in there, rewarded with a seemingly endless amount of pre-cum. It only drove him on, unable to stop at this point. Inasa could have woken up and left, and Deku would still cling to his cock if he could manage it. The thought even sent a shiver down his spine. Would this man even notice him if he was awake? He was so big, so many times Deku's size, and this cock was even bigger still.
By this point, Bakugo and Kirishima had joined in even more. Their hands had reached the head of the cock as well, though they went for the bottom of it while Deku's entire body massaged the top. They pulled off globs of pre to swallow it down, fistfuls of the stuff (even with their much larger hands). They stroked all around the tip where they figured it was sensitive, where certainly their strength and size would manage to actually please Inasa where he could feel it. And certainly enough, they were rewarded with more groans and grunts from the titan that slept there in the bath. It only made them all pick up their pace, eager to see just what would happen if such a man managed to unload.
The dream must have been good, because even with all of this, Inasa was still in a deep sleep. And his cock only continued to pulse with even more excitement by the moment, while a constant river of pre drooled down into the bath water below, if not caught by the hungry and lusty trio. Even if he did wake up, Izuku definitely would not stop, and the other two weren't even sure if they could manage to pull away before he hit his edge, which only seemed to get closer and closer as time passed, where it seemed utterly amazing that the huge man was still asleep.
There was suddenly an earthquake in the room, or what sounded like the earth itself as it groaned to life. A constant moan rumbled through the entire onsen as Inasa's body reacted to all the physical stimuli and his mind was lost in some wet dream. His sounds of pleasure hit the trio below like a truck, and Deku almost slipped right off of the cock before he was caught by Kirishima. And then they could feel the heat, the pressure that slowly grew up from Inasa's crotch up to the tip of his shaft, as if it were in slow motion.
The entire cock lurched about as it began to fire out a tidal wave of seed. Izuku barely managed to hang on for one spasm, but the second tossed him up before he fell down into the pool (fortunate that it was made deep enough for much taller men). The cum gushed upwards in an arc, before it slammed down against the pool and its occupants, wave after wave of it that seemed to have no end. It was hot, sticky, and thick, almost like he painted each of them in a white tar.
Gallons of it filled the room, and it actually overtook the water in the onsen, which spilled out from such heavy globs of cum that splashed down onto it, or was forced out into the pipes below, before the cum seemed to clog up the filters there. The result was that Bakugo and Kirishima stood in a pool that was seemingly made of cum by the time Inasa's orgasm faded.
They rubbed their faces until they could see again, exchanged some looks, before they realized someone was missing. They quickly shot their arms down and felt around before they yanked Deku up out of the cum, who was completely and utterly dazed, one hundred percent lost to his lust for bigger men.
There was a yawn from above, as Inasa seemed to slowly come to now. It took him a few minutes to wake up and look down to see that he'd completely soaked the entire bath as well as its other occupants in a thick layer of white spunk. He rubbed the back of his head and chuckled a bit.
"Sorry about that, guys," he called down to them before he let out another little nervous laugh, as if he was the one that had something to be ashamed about. It seemed he did believe it was entirely his dream that had made this mess and nothing they did. "Had one crazy dream."
"No worries," Kirishima called back up before he wiped his hair back, the spikes completely flattened by the seed in them. "Haven't seen you around here before."
"Oh yeah, they promised me a bigger bath, but I guess I came a week too early. You guys here often?"
"Every Thursday," Bakugo replied, a smirk on his face as he looked down to Izuku, who was still completely out of it. "See you next week?"
"Oh sure thing. I'll be here," Inasa said with a smile, before he waved and moved to climb out of the door, where he had to nearly crawl out for now, until they finished his special room.
The three friends were left alone in the utterly wrecked onsen, and they honestly couldn't wait until next week. Plus, they really needed a bath now.