Archive of Our Own ^beta

Chapter Text

“I’ve done it!” Groaning from up in the attic, Ryunosuke and Kazuma have grown to detest those three words. It meant that Sholmes was downstairs tinkering with his daughter’s inventions again while she was visiting Susato in Japan. Those words were the final nail that Sholmes was ready to show off his newest discovery, which more often than not ended with something set ablaze.

They couldn’t be that irritated, though. Sholmes had been generous enough to allow the pair of lawyers to stay in his suite while they were in London on the condition they’d help him around the place. Neither had expected part of that help would involve being subjected to Sholmes’s mad scientist routine on a near weekly basis.

“What now?” Kazuma descended the steps with his arms crossed, a barren lack of amusement on his face. To say the least, Kazuma wasn’t a fan of the detective’s antics. At the bare minimum, he was grateful towards Sholmes, but it was difficult to truly enjoy him at times. He’d never forget how Sholmes’s brand new ‘Flight Boots’ had left Kazuma bedridden for several days in Ryunosuke’s care.

On the other hand, Ryunosuke got along splendidly with the great detective. Yes, Sholmes had his share of eccentric quirks, but he was always willing to help Ryunosuke out in dire times. With that said, Ryunosuke wasn’t particularly eager to try out any of the new inventions forced upon them either. He never meant any harm, but Sholmes wasn’t on the same caliber as Iris when it came to making safe, useful commodities.

Walking side by side into the main room with his best friend, Ryunosuke saw Sholmes wearing an unusual looking headpiece. “What is that, Mr. Sholmes? It looks…” Ryunosuke trailed off, unsure on how else to comment on Sholmes’s new hat. It looked reminiscent of the detective’s tan deerstalker from a distance, but instead it was a metallic helmet with tons of wires and buttons coming out all over the place. It most certainly did not look safe. Ryunosuke gulped, already expecting the worst. What misfortune would plague him and Kazuma this time? By the looks of the faulty wiring job, probably mild electrocution.

Kazuma wasn’t impressed. “Let me guess. A ‘Flying Hat’. What is with you and your flying obsession—“

Sholmes stuck a finger out to silence Kazuma’s dour criticism. “Now, now, patience! I’ve already tested this one myself. I assure you that this device is perfectly harmless and fully functional. What you will witness is not a trick of the eye. Watch as the mind rises above and gains the outstanding ability to alter the body! Observe!”

This was the first times Sholmes was demonstrating an invention himself instead of using one of his roommates as a lab rat. Not knowing what to expect, Ryunosuke and Kazuma backed away, prepared for an explosion at any moment.

Flaming red filled their vision in the next second, but thankfully, it was not from a fiery blast. It was Sholmes’s hair, his blonde locks were now a striking shade of crimson.

“What the—!?” Kazuma was stunned by the sudden change, but even more shocking was the fact it altered again an instant later. From a sky blue to a vivid violet then a dazzling pink, Sholmes’s hair whirled through hundreds of shades in seconds. “That’s…” Ryunosuke’s voice was soft, nearly speechless from the spectacle. He’d witnessed Sholmes with different hair colors in the past, but nothing this expeditious. It was like a kaleidoscope for the eyes as Sholmes had a pleased smirk, amused by the pair’s bewilderment.

“A helmet that changes your hair. That’s it?” While the invention had yet to break down, it wasn’t worthwhile in Kazuma’s eyes. Who would want their hair to be a yucky shade of green or a headache inducing neon orange? Kazuma scoffed. He was anticipating something more impressive with the way Sholmes was bouncing all over the place, eager to show off his talent. Admittedly, it was unbelievable that a simple hat could do something like that, so Kazuma gave some credit where it was due.

“Yep, that’s all it does.” Catching a glimpse of Kazuma’s deadpan expression, Sholmes started to laugh wildly, but the laughter died down when Sholmes’s nose grew a few inches longer. “Huh? But I wasn’t lying!” Yet his nose grew again instantly. “Hey!”

The pair of lawyers couldn’t fathom the scene before them. Sholmes seemed to enjoy their flabbergasted reactions as his face transformed at a rapid speed. His eyes glowed yellow, then he had a plush mustache, and then his jaw became more defined! What was happening to him?!

“Mr. Sholmes, take that thing off!” Ryunosuke cried out, worried that the machine was somehow messing with Sholmes’s body against his will. It must be a work of witchcraft! Sholmes only smiled in response, and then as quickly as the bedlam began, Sholmes was back to his normal appearance. Blonde, clean shaven, and an average nose. Nothing out of the ordinary. Sholmes took the helmet off and set it down before he clapped his hands together and looked towards his baffled audience, waiting for their applause. “That was quite the show, wouldn’t you agree? I ought to charge you both for that marvelous performance, but I’ll give you a free pass this time. My treat!”

Kazuma glanced at Ryunosuke. Ryunosuke glanced at Kazuma. Neither of them knew what to say. Most of Sholmes’s inventions were duds, and the rare success was… well, they certainly weren’t as major as whatever that helmet could do.

“The helmet can change your face?” Ryunosuke stated calmly after many moments of uneasy silence. He couldn’t wrap his head around how a simple piece of headwear could do something so drastic to a person’s appearance.

“Not just one’s face, but it can alter your entire body. I kept my demonstration to minor changes only to get my point across. This helmet is no joke.” Sholmes’s elaboration only provided more questions than answers. If being able to transform your entire face was a minor change, Ryunosuke couldn’t comprehend what the detective would define as something major.

Seeing the curiosity on Ryunosuke’s face, Sholmes put the hat back on to demonstrate some more. He rolled up his pink sleeve and held his arm out and the three watched as hair started to spring out. His whole forearm was covered in dense hair within five seconds as if Sholmes hadn’t shaved all his life. Another five seconds later, it was all gone, and Sholmes continued his explanation. “This device scans the user’s mind and can transform their body in any way imaginable. When you first put it on, it stores the wearer’s initial appearance, thus making it easy to revert to your original form at any time. I’ll save you both the complex scientific processes that make such a thing possible, but in simple terms, that helmet tracks relevant brainwaves and then sends abnormally strong signals to corresponding parts of the body to transform them in real time. So if you imagine yourself with hairy arms, you’ll have hairy arms in the blink of an eye. Quite remarkable, isn’t it?”

There was a glimmer of awe radiating from Ryunosuke as he bounced on his feet, impressed with Sholmes’s illustrious display. “That’s incredible, Mr. Sholmes! I’ve never seen anything like it.”

Kazuma remained skeptical. It was fairly extraordinary to watch, but he couldn’t help but suspect the machine wasn’t as good as Sholmes made it out to be, like there’d be some nasty side effects or it was all an illusion. This was Sholmes they were talking about after all.

Spotting Kazuma’s dubiety, Sholmes wagged his finger at him. “Wish to see more? Then allow me to do a few extreme alterations next. You’ll see with your own eyes how this terrific invention is the real deal!”

Sholmes took a deep breath, and after a few beats of silence, he started to scream in agony. Kazuma and Ryunosuke jumped back in surprise before rushing to the great detective’s side. Ryunosuke grabbed Sholmes’s shoulders as the detective continued to wriggle around. “Sholmes?! Are you alright? What’s… wrong?” Ryunosuke hesitated, sensing something was off. Sholmes’s shoulders seemed… higher up? Only then did Ryunosuke notice that Sholmes was getting taller by the second. His six foot frame elongated until he was 6’6” all while he kept growing and grunting in exasperated pain.

Worried from how excruciating his yells sounded, Ryunosuke tried to reach up to take the helmet off of Sholmes, but the blonde grabbed his arms with a stern look. “Never remove the helmet mid-transformation. It could have severe consequences, and I’d rather not test that fact.” Sholmes explained bluntly, his screaming coming to a stop instantly as Ryunosuke was met with a serious expression.

“Aren’t you in pain?” Kazuma inquired, but Sholmes laughed heartily. “Oh, no! To add to my long list of talents, I’m a magnificent actor. None of those screams were real. If I was in that much pain, I would’ve just stopped imagining myself taller.” Sholmes smiled down on the pair as he reached the 7’0” mark. Kazuma seemed sincerely surprised and mildly impressed by Sholmes’s modifications happening right in front of him. After dropping his pained act, Sholmes carried on, “It would be a severely dreadful experience to mutate like this, but the device emits the proper chemicals to make the transformations completely harmless. There’s nothing to worry about.”

“We get it. You can stop now.” Kazuma was usually a few inches shorter than Sholmes, but with Sholmes nearly 8’0”, he had to crane his neck back to get a good look at him as the detective’s clothes started tearing from his new size. Sholmes was always one for theatrics and toying with Kazuma, so he squatted down and looked at the prosecutor in the eye.

“Oh? Aren’t you entertained by what I’m capable of? Excited, perhaps?” Sholmes had a recognizable glint of mischief on his face, and then his body shifted entirely. His blonde hair became black, his green eyes turned gray, his chin grew more defined… wait a minute.

It was like looking in a mirror. Kazuma was staring at his own face, his own hair, his own physique. The resemblance was uncanny and sent a chill up Kazuma’s spine. The only noticeable differences were Sholmes’s clothes didn’t change and Kazuma looked minuscule next to the 8’0” giant version of himself.

Ryunosuke was just as shocked as Kazuma. He was seeing double. “See? I think I’ve proven now that this device can do anything,” the taller Kazuma stated in Sholmes’s voice. Ryunosuke was starting to think he’d hit his head and was hallucinating the whole thing.

Sholmes transformed again, but this time into a replica of Ryunosuke. “Or would you prefer this form, hmm?” Sholmes walked closer to stand right in front of Kazuma, but now that he towered over him, Kazuma was face to face with the middle of Ryunosuke— no, Sholmes’s torso. This devilry was messing with Kazuma’s mind. Sholmes snickered when he noticed the light blush on both of the shorter men’s faces. “That settles it. Kazuma definitely prefers me like this.”

While the two lawyers were always close, they kept their more intimate and affectionate moments behind closed doors. But in this shabby flat, Sholmes often overheard what the two of them were up to in the attic. He respected their privacy, but every now and then, it was fun to catch them off guard by pointing out their romantic relationship. He was savoring Kazuma’s conflicted expression looking up at the tall version of Ryunosuke that Sholmes sculpted himself into.

And as quickly as the chaos started, Sholmes reverted to his typical height and appearance. It wasn’t quite the same since his clothing had torn in a number of places, but nothing else was amiss. Looking down at the tattered fabric, Sholmes made a low humming noise. “Hmm, this won’t do. Excuse me, I must change, but feel free to tinker with this yourselves for the time being. Don’t get carried away, it’s still in testing, so let me know if you come across any bugs.” Sholmes took the helmet off his head and plopped it right down on Kazuma’s, who was about to retaliate, but the detective waved to the pair and scurried off to his room.

Kazuma brought a hand to his face and sighed, grumbling in annoyance. “That man is crazy. Does he know how dangerous this device could be if it got into the wrong hands?”

“What do you mean? It seems fantastic to me.” It was jarring to observe the changes at first, but Ryunosuke thought Sholmes struck gold with this marvelous invention. It was certainly leagues better than his attempts at man-made flight.

Kazuma elaborated his reasoning, “Criminals could get away with nearly any crime by changing their appearance. Even worse, they could frame someone by looking exactly like them.”

Ryunosuke brought his fingers to his chin, thinking about the possible ramifications if the helmet was released to the public. “That’s a good point. The whole country would be in pandemonium if this was produced and sold everywhere.”

“Which is why it will remain here, in private.” The two turned their heads to Sholmes, reentering the room in a fresh, more casual set of clothes. “I’m completely aware of how this machine can be misused by unsavory individuals. It’d be foolish to sell it, so I will keep it here for safekeeping.” Sholmes looked Kazuma up and down and noticed that he looked exactly the same when he left. Crossing his arms, he decided to egg Kazuma on, “Go on, try it out yourself. It’s no fun if you just stand there and model the device.”

Kazuma glared back at Sholmes. While the headwear seemed amazing, he still wondered if the hat was more unstable than Sholmes let on. With that in mind, he decided to only test it with something tiny that would be almost unnoticeable. Kazuma held his hand out and pictured his thumb being a bit longer, and sure enough, reality copied the thought. He shuddered. Sholmes might’ve loved playing around with such a thing, but Kazuma wasn’t a fan of this helmet. There was something sinister about being able to change anything about yourself with a mere thought.

“There. It works.” Kazuma was quick to revert his thumb and yanked the machine off, thrusting it into Sholmes’s hands.

“Ah, scared?” Kazuma would’ve rebutted, but Sholmes carried on without him, “No matter, I’m certain Ryunosuke is more excited to try it out.” Sholmes handed the headwear to Ryunosuke, who was looking down at it with astonishment. In his opinion, the helmet was both intimidating and impressive in its own right. It was unthinkable that one could change their entire body only by wearing it, but Ryunosuke had witnessed it in action firsthand.

Ryunosuke put the machine on his head. He didn’t want to go as extreme as Sholmes had, but didn’t want to do something as insignificant as Kazuma either. He looked down at his hand and thought about what he could do. He wondered what it’d be like to have six fingers, and a millisecond later, a sixth finger came out from his hand. He wiggled it around to confirm it was real. Then, he envisioned his hand being a bright red, and that happened too.

Sholmes snickered and nudged Kazuma’s side. “Looks like we caught Ryunosuke… red-handed.” Kazuma and Ryunosuke simultaneously groaned at the detective’s atrocious pun. Ryunosuke returned his hand back to its original state and gave Sholmes a thumbs up. “I can’t believe how well it works, Mr. Sholmes. It’s like my hand already transformed before the thought passed my mind.”

Ryunosuke’s hands held the helmet with the intent to remove it, but Sholmes quickly grabbed his wrist and wagged his finger. “Tsk, tsk, not yet, Ryunosuke. I have another surprise ready!”

Ryunosuke had already been surprised enough by the mind-boggling invention. He didn’t need any more groundbreaking discoveries today. Sholmes searched around a few crates near his desk, the sound of metal and tinkered parts being rummaged around. “Now where on earth did I… Aha! Here we are.” With one in each hand, Sholmes removed two more devices from the box. They were identical to the helmet Ryunosuke bore right down to the shabby wiring.

Rejoining the lawyers, Sholmes pushed one helmet into Kazuma’s arms. Kazuma looked at Sholmes as if he’d just handed him a live stick of dynamite. “And why are you insisting I wear this longer? I refuse.”

“Well, these machines are still in the testing phase. I’d like to experiment with them for a while longer, and as neither of you are working on a case today, I’d appreciate your assistance. Two heads are better than one, but three trumps two!” Sholmes looked at Kazuma with a glimmering, sweet smile, obviously wanting Kazuma to participate even if Kazuma wanted nothing to do with it. Regrettably, Kazuma snagged one of the devices, knowing the detective would talk him into it even if he declined.

“Alright,” Kazuma answered, “But only for a little. Just because we’re not on a case does not mean we can be used as your guinea pigs.” Sholmes didn’t mind Kazuma’s stiff attitude and clapped his hands together, delighted Kazuma was on board in the first place.

Kazuma put his headpiece on and Sholmes followed suit. “Thank you, my dear fellows! I’m honored that both of you are willing to help me test—“ Sholmes was cut off when a loud tear reverberated through the room. Not one tear, but two. Kazuma and Sholmes shot their heads downwards simultaneously as both of their chests ripped through their shirts. Sholmes marveled at his sudden muscles while Kazuma gawked, stupefied from the sight. Both of them grew a bit further before the sensation stopping. It wasn’t only their chests that grew, but all of their muscles. Kazuma and Sholmes were already healthy, fit men, but now they looked like they exercised intensely on a daily basis. Kazuma was quick to point an accusatory finger at Sholmes. “What did I tell you? This invention of yours is as faulty as the rest of them. I didn’t imagine myself looking muscular like this!”

Usually, Sholmes would’ve bit back at Kazuma with a playful counterargument, but Sholmes stayed silent and scratched his cheek, shutting his eyes to think. “I didn’t imagine that either, but at least it stopped. Hmm…” Sholmes opened his eyes to examine what happened. He and Kazuma were nearly equal in muscularity now, but other than that, there weren’t any changes to their bodies. Sholmes looked over to the rather quiet Ryunosuke and noted that he hadn’t transformed at all. Nothing about him was different, other than the strong red hue dusting his cheeks. Sholmes had connected the dots, but in his typical fashion, wanted to toy with Ryunosuke first before proposing his theory.

Sholmes took a step towards Ryunosuke and subtly flexed his arms, straining his sleeves. “It looks like somebody likes what he sees.” Sholmes winked, relishing the way Ryunosuke’s face grew hotter as he swung his hands out wildly to defend himself.

“No! No, well— I think you look good. Both of you! Just… always thought muscles would suit you both. But it all happened so abruptly, I didn’t think it’d actually happen.” Ryunosuke waved his hands frantically and stuttered profusely at first, but under Sholmes’s alluring gaze, he slowly regained the confidence he usually has whenever he’s defending an innocent soul in court. Ryunosuke seemed just as perplexed now that he’d gotten his explanation out.

Kazuma perked up from Ryunosuke’s confession. “Really? I didn’t take you for the type to like strong guys.”

“You look great either way, Kazuma, and you know it.” Ryunosuke held Kazuma’s hand lovingly and gave him a gentle peck on the cheek. The lovebirds almost never showed affection in front of others, but Sholmes could be trusted, even if Kazuma had the occasional spat with him. Ryunosuke smiled warmly up at his lover. Wait… was Kazuma always so tall? Ryunosuke glanced over at Sholmes and realized that he looked much taller too. His eyes darted between Sholmes’s triumphant smirk and Kazuma’s increasingly worried expression. It took a few seconds for Ryunosuke to realize that the two of them weren’t growing again, but Ryunosuke himself was getting shorter.

“Wha—?! Hey, Sholmes, do something! I’m shrinking!” Ryunosuke shouted, uncomfortable with how his already below average height was dwindling.

“If you say so,” Sholmes stated bluntly, and Ryunosuke returned to his 5’6” stature. Both lawyers were baffled. Ryunosuke spoke up quietly, the confusion clear in his tone, “How did you—“

“It’s elementary,” Sholmes interrupted, “The helmets are connected. I hadn’t programmed them to have a shared data set, but they must be intertwined by mistake. I suspected as much when Kazuma and I grew unexpectedly and Ryunosuke seemed flustered. Deducing that Ryunosuke had imagined myself and Kazuma with larger muscles, I pictured Ryunosuke getting smaller to test my idea. Sure enough, you shrunk as I predicted, and it was just as easy to undo the change. Therefore, anyone wearing one of these machines can alter not only their own body, but anyone else who is wearing a helmet too.”

Ryunosuke bit his lip. Everything Sholmes said must’ve been true. With so much talk about bodies and transformation, Ryunosuke only wondered about how the two of them might look a bit bigger for a split second, but it was enough time for the machine to process his thought, making Kazuma and Sholmes as muscular as he imagined. He didn’t intend to expose his own thoughts like that, but Sholmes’s intelligence was no match.

With his blush still blatantly on display, Ryunosuke concurred. “That sounds right, though I’m curious as to how the devices are connected if you hadn’t planned on them working like that.”

Stepping closer to Ryunosuke, Sholmes squatted down to look at Ryunosuke with a sickeningly delighted grin, like a lion finding a new target to mess with. “I am too, although… I’m more curious as to why you were thinking about me and Kazuma like that, my dear Ryunosuke.” Shit. Ryunosuke didn’t know what to say. He loved Kazuma and admittedly found Sholmes handsome, and in the heat of the moment, the thought slipped into his mind. But how could he explain that? Sholmes’s smile didn’t falter as Ryunosuke froze in place. “I’m flattered, really, but I think I could use a little more.”

Thus, Sholmes began growing himself bigger mere inches in front of Ryunosuke. To tease him further, Sholmes bounced his pecs, the round muscles bulging out of his shirt. He made sure to grow his entire body but focused on his chest, closing the gap between Ryunosuke so his face was almost pressed against those hulking, hypnotic tits that grew bigger with each passing second. Ryunosuke could feel the warmth coming from Sholmes’s pecs, and likewise, Sholmes could feel Ryunosuke’s face heating up. Sholmes was rather aroused by the goading display of power he was putting on and swore he could feel the growth accelerating. Did Ryunosuke want him to get bigger, too?

The sound of more seams snapping echoed throughout the suite the longer this ordeal went on. Looking over at Kazuma, Sholmes noticed two things. First, Kazuma was pissed. The two men always had a respectable relationship, but Kazuma often stepped in to protect Ryunosuke when he felt Sholmes was going too far. This was one of those moments. But the other thing Sholmes noticed was much more interesting. Kazuma was larger too, but from the looks of it, Kazuma hadn’t realized that himself yet. Ryunosuke must’ve been to blame for Kazuma’s expansion. With Kazuma’s arms crossed, it was obvious for Sholmes to see his pecs and biceps stretching outwards, yet Kazuma was none the wiser and only glared harshly at Sholmes.

“Sholmes, that’s enough.” Kazuma grabbed Sholmes by the shoulders and pulled him away from Ryunosuke. His eyes were like daggers ready to strike. “You can have fun with your toys, but leave Ryunosuke out of this.”

Sholmes looked back at Ryunosuke, who appeared stunned by the two statuesque men in front of him. Sholmes peered downwards and grinned smugly, pointing for Kazuma to see. “I believe I’m not the only one who’s having fun with the helmets.”

Kazuma glanced down where Sholmes gestured to and was met with Ryunosuke’s sightly bulge. Kazuma had known for a while that Ryunosuke was hung after spending many nights in bed together, but it was always a treat seeing Ryunosuke’s ten inch penis outlined by his constraining pants.

Still, Kazuma had never known this side of his lover. Kazuma had made it clear to Ryunosuke that he enjoyed larger men, especially below the belt, but Ryunosuke rarely talked about his own tastes. Then, one of the buttons on Kazuma’s uniform flew off, and Kazuma knew who the culprit was. This was… nice, somehow. If Ryunosuke found him more attractive like this, then Kazuma would sit back and let Ryunosuke shape his body however he liked it.

Kazuma flexed one of his arms and ripped through more fabric in the process. “If I knew about this, Ryunosuke, I would’ve hit the gyms for you a long time ago.” Though Ryunosuke was speechless, Kazuma could tell he was piling more size onto him with every thought. He didn’t know what Ryunosuke’s ideal size was, but looking at how his cock continued to twitch and throb, Kazuma had a feeling it was way beyond his current weight.

Glancing back at Sholmes, the detective was getting bigger as well, the two of them nearly equal in size. Kazuma had suspected for a while that Ryunosuke had feelings for Sholmes too, but this was the first piece of concrete proof he’d seen. But he didn’t mind as much as he expected. As long as Ryunosuke was happy, then so was Kazuma. And by the looks of the small stain forming in his pants, Ryunosuke was very, very happy. Plus, Kazuma had to admit Sholmes was quite a good-looking chap, especially now that he had extra muscles to his frame.

While staring at his lover’s crotch, Kazuma’s mind lingered. If the helmets could change any part of the body, then surely it’d apply to there too, right? He pondered on Ryunosuke’s sizable dick and wondered what it’d be like to be ever so slightly longer. Another inch or two or three.

Kazuma snapped back to focus by the sound of Ryunosuke’s poorly stifled whimpers and more loud zips joining the cacophony of shredding clothes. Over a foot long and slowly expanding, Ryunosuke’s cock jutted out from his torn pants. A cock that massive attached to his best friend looked ridiculous, but Kazuma was hungry for more as looked to Sholmes with a genuine grin.

“Actually, I’m starting to understand the fun in all of this,” Kazuma stated as the three men continued to grow. Sholmes and Kazuma were like titanic bodybuilders and Ryunosuke’s cock grew longer than his forearm with copious amounts of pre-cum dripping from the tip.

“You know, Kazuma,” Sholmes spoke up, eyes glued to Ryunosuke’s monstrous dick, “I believe we should repay Ryunosuke somehow. He gave us these wonderful new bodies, so it’s only right we return the favor.” Kazuma shared a knowing glance with Sholmes, and before Ryunosuke could react, the two giants were heading straight for him. In an instant, Ryunosuke received a burst of size that left his clothes in pieces. Kazuma and Sholmes had turned the tables and were growing Ryunosuke’s muscles now. All three were awfully turned on by what the devices managed to do to them. Hushed moans and eager ripping bombarded the trio’s ears until all of them were standing nude, oozing with lustful power and wanting to go bigger.

Sholmes grabbed Ryunosuke from behind and pulled him back onto the couch, creaking from their combined weight. Ryunosuke yelped from the sudden fall but yelped even louder when he felt the detective’s cock pressed up against him. He looked back at Sholmes and bit his lip, nodding slowly, awaiting Sholmes’s touch. Ryunosuke was so focused on Sholmes that he didn’t notice Kazuma approaching, slowly lowering himself into Ryunosuke’s lap.

Ryunosuke had never moaned so loudly in his life. Kazuma took all of Ryunosuke’s lengthy cock with ease while Sholmes simultaneously started to fuck him from behind, his muscle gut and pecs pushing against Ryunosuke’s ripped back muscles. Ryunosuke could feel his muscles pumping up every time Sholmes rammed into him. He could also tell his cock was expanding with every slam of Kazuma’s bulbous ass back down on it. Ryunosuke’s mind was a haze, and all he could think about was how much bigger all three of them were going to get. His hands reached out and squeezed Kazuma’s engorged ass. Fuck. What an ass, and Ryunosuke willed it to grow more plump.

Being obliterated on both sides was a blessing. Ryunosuke had already came once but none of the three slowed down, their bodies and minds going crazy. If anything, they only sped up their thrusts and wild imaginations, each nearing a staggering 400 pounds of muscle and 7’0” in height. Ryunosuke hoped that this was only the beginning.

Many minutes, positions, and orgasms later, and the whole building was shaking. The trio were lost in their fantasy and had filled the room with their semen, musk, sweat, and… well, muscles. They were pushing against the walls and had almost outgrown the suite itself. None of them cared to realize, caught up in the festering arousal deep within as they added tons and tons of pounds to their physiques.

Ryunosuke was the first to see through the lust-fueled fog once his shoulders and traps touched the ceiling. He felt pinned in place. He had to crouch down awkwardly to allow his body to keep expanding without demolishing the roof, and it didn’t help that Sholmes was currently riding him while Kazuma’s dick was deep within the detective’s mouth.

“Guys,” Ryunosuke spoke up, the first eligible words in hours to come out of any of their mouths, “Isn’t this getting, uh, out of hand?”

Kazuma groaned and reached another climax. What was that, number eight? Sholmes gobbled up every drop of cum while rubbing his bloated stomach, loving how full he felt. Once finished with his release, Kazuma looked at Ryunosuke with a glossy stare. He, too, had lost track of his senses from the overwhelming pleasure. “I guess so. What time is it, Ryunosuke?”

Ryunosuke had to turn around to see the clock on the wall, which was a near-impossible feat, considering the three men combined took up about 90% of the room. But when he got a good look at the clock, his jaw dropped. “What?! It’s been three hours!”

That seemed to knock Kazuma back to reality as he tried getting a good look at the clock to confirm Ryunosuke’s claim. “We spent that long going at it? No way.”

Sholmes smiled from their shock. He didn’t mind at all they’d been fucking for so long. Standing to his full height, Sholmes was clearly the biggest of the three, probably since he was the one enjoying this the most. “The night is still young, my friends. One hour, three hours, twelve hours… What does it matter? Come, now. Let’s continue where we left off.”

Sholmes grabbed both Kazuma and Ryunosuke’s cocks and tugged on them. He brought the pair of sausages to his mouth and sucked on both beasts at once, his cheeks puffed out. Sholmes was determined to keep this evening of fun going and all three experienced a surge of growth in turn. Kazuma and Ryunosuke wanted to resist, but with Sholmes’s tight mouth wrapped around their dicks, it was difficult focusing on anything else.

And then that was it. For the first time in hours, no one was growing. Perplexed, Sholmes reached up to his helmet and felt the cracked remnants of the machine. All three of their helmets had been broken from being pressed against the ceiling and their mammoth shoulders. Although Sholmes was disappointed, Ryunosuke thought it was probably a good thing in the long run, as they would’ve burst through the walls any second if they kept growing.

“Well, no side effects from taking off the devices mid-change.” Ryunosuke said to try and lighten the mood, but they were left in a pickle. Three giant men cramped in a house not meant for their size with bits of helmets that could no longer alter their size. Kazuma crossed his muscular arms and looked at Sholmes with a displeased glare now that their impromptu moment of arousal was finished. “Great. Your invention broke, and now we’re stuck like this. If only someone didn’t get so carried away.”

“Hey, let’s not point any fingers. We all had a good time, right?” Sholmes laughed, patting his swollen gut and stroking his nine foot cock. Even with his lewd actions, Sholmes continued speaking in a lecturing tone as if nothing abnormal happened at all. “It’s not a big deal. I made many backups in case they broke down. They’re in one of the boxes in the corner. We should be able to activate the reversion effect once we put them on. Ryunosuke, go fetch them for us.”

Turning around was a tedious chore for Ryunosuke. It’d be tough even if he was alone, but with Sholmes and Kazuma, any movement meant bumping into the other men or the misplaced furniture. He managed to carefully retrieve the crate that’d been pushed into the corner during their growth spurts. It was a large box, but not to Ryunosuke, who could lift it with no problem. The changes they underwent only just seemed to be setting in as Ryunosuke was hyperaware of how strong he was to lift up such a heavy crate with ease. He opened the box and saw six of the inventions inside, so he picked one up, but crushed it instantly.

“Careful, Ryunosuke! Those are our only chance of things going back to normal,” Sholmes chastised when he heard the sound of crumbled nuts and bolts scattering along the floorboards. Ryunosuke nodded and picked the next helmet up with a more delicate touch, using only two fingers. He handed them out to the others before putting one on himself. Moving around so much, Ryunosuke bashed his arm into the wall, nearly punching a hole through it.

“Sorry, sorry! We definitely didn’t think this through,” Ryunosuke fumbled out an apology in haste for his clumsiness. Sholmes hummed in agreement as he was adjusting his helmet. They all had to be careful since their broad traps pushed against their head, but they successfully put the devices on.

Less successfully, they couldn’t revert. They all tried imagining their normal, smaller bodies but nothing happened. The three looked confused by the lack of any change. Why wasn’t anything happening? They were still their hyper, ginormous selves. Just as Kazuma looked as if he would tear Sholmes a new one, Sholmes stuck his hand out, realizing the issue.

“Ah, so that’s it. We just put these helmets on for the first time, yes? So it scanned these current physiques as our original form. Of course, trying to revert then won’t do anything, since we’re still the same huge size it scanned us as moments ago. That’s troublesome.”

Kazuma couldn’t decide what he felt more in that moment: anger towards Sholmes’s silly invention backfiring or embarrassment from the idea of being stuck at this size forever. “So you mean to say we’re stuck like this? There has to be some sort of failsafe or other reversion process. You said these machines were connected somehow. Surely they must’ve saved our original data from the previous helmets.”

“They might’ve been able to transfer our thoughts, but not the data. Oh, come on, Kazuma. Surely there are worse fates than being a titan.” Sholmes shrugged his shoulders, pondering the situation with an unbelievable amount of nonchalance.

Kazuma stepped forward, a vengeful glint in his eye. “And you don’t care?! How on earth am I suppose to work as a lawyer when I can’t fit behind the bench?“

“Hey, guys!” Ryunosuke suddenly called out, grabbing the attention of the two feuding men. Although he was still over ten feet tall, Ryunosuke was visibly shrinking rapidly to return to his natural size. Sholmes and Kazuma had been caught up in their petty spat that they didn’t realize Ryunosuke had found a solution to their dilemma.

“We can still alter our bodies as long as we have these machines on, right? So if we picture ourselves shrinking down, and then take the helmets off when we’re back to normal, it should be fine... at least if I understood Sholmes’s explanation properly.” The detective closed his eyes for a moment before nodding, “Yes, that sounds about right. Well done, Ryunosuke. An elegantly simple solution to our predicament.”

Kazuma was relieved that this mess could be fixed easily enough. He was the first to shrink all the way back down to his original form, although he left a bit of extra muscle on himself for… personal reasons. Similarly, Ryunosuke left an extra inch or two on his cock, wanting to be able to satisfy Kazuma with it. With their clothes shredding to bits ages ago, they were standing together nude, which somehow felt even more intimate than their nonstop lustfulness the past few hours. Ryunosuke’s face looked like a tomato as he peered away and took off his device.

“We should get dressed. The sun will be setting soon,” Kazuma stated, then grabbed Ryunosuke’s hand and kissed him delicately.
Ryunosuke silently hummed in delight, glad to hear the joy in Kazuma’s voice that things hadn’t grown disastrous.

“That sounds fine. Sholmes, what about… Sholmes!” Ryunosuke’s gaze landed on the detective, but he wasn’t any smaller. In actuality, he was growing again. Sholmes looked like a colossus to the average-sized Kazuma and Ryunosuke. He was sitting against one of the walls, spreading his legs out to make room for his swollen body. He slouched down when his head became close to the ceiling, his pecs huge enough that they hung down over his muscle gut. His cock was spurting, getting larger and quickly approaching Ryunosuke and Kazuma. Sholmes’s dick was easily as big as the two lovebirds combined.

“You two are simply too kind, giving me all this extra space. Personally, I’d like to test out the machine a while longer. See if it can keep up with my imagination.” With how maddeningly horny Sholmes looked, he was prepared to fill the whole suite with his muscles. Ryunosuke backed away but Kazuma stepped forward. He was undeterred by the detective’s growth and had to put a stop to this.

“Oh yeah? And what’ll happen when you get big enough to destroy this house? Stop this at once!” Kazuma shouted sternly, but Sholmes only closed his eyes, ready to let the growth take over. Kazuma bit his lip. What could he say to halt Sholmes’s out of control growth? That’s when he got an idea.

“We can always find a vacant spot to test it out later,” Kazuma proposed, “That way, we wouldn’t be cramped by the confides of the flat and could get as big as we wanted. How does that sound?” Kazuma’s words made Sholmes stop. Though he wasn’t shrinking, he paused his growth as he contemplated Kazuma’s offer.

“That’s an interesting suggestion, Kazuma,” Sholmes said as his hand gently rubbed his own belly with a grin, “I take note that you said ‘we’ can test it out, not just me. Are you implying all three of us should do this again sometime? That’s surprising, considering how you lost your temper multiple times today.”

Kazuma looked to the ground, a look on his face like a child that had been scolded. “While I was displeased with your behavior at times, Sholmes… I will admit that my time with you two today has been the most riveting experience I’ve ever had. I wouldn’t mind doing it again. Though I’d insist all three of us come along for it.”

“How about tonight?” Sholmes asked suddenly as he finally started to revert back to normal. “Tonight it is,” Kazuma replied immediately with a nod. He slipped away to the attic to get a change of clothes, leaving Ryunosuke alone with the enormous detective.

Ryunosuke looked dazed by Kazuma and Sholmes’s unexpected agreement. He wasn’t sure if he was ready for another night of massive muscles with these two, but with how mind-meltingly terrific this afternoon had been, he’d be insane to turn them down.

Ryunosuke bowed to Sholmes. “Then I’ll join you two. Thank you, Mr. Sholmes, for allowing us to test this invention with you.”

Sholmes perked up, then placed a large hand on Ryunosuke’s shoulder. “That’s a first. Usually, I’m the one thanking you for testing my mechanisms, not the other way around. Thank you too, Ryunosuke. For all the times you’ve been a lab rat for science. And give Kazuma my thanks as well.” Ryunosuke nodded up to Sholmes, not yet used to having to crane his neck this far back to get a good look at him. With all three fully reverted, Kazuma and Ryunosuke only kept minor differences to their original physiques. However, Sholmes’s changes were a bit more blatant. He was 6’0” before, but now stood at 6’4”, and his body kept its mouthwatering proportions. He must’ve weighed close to 350 pounds. Sholmes surely would’ve been questioned about it from others, but neither he nor Ryunosuke cared to think about that for now. After all, as the inventor of such a wonderful device, Sholmes deserved to peacock his impressive body around a bit.

“Anyways,” Sholmes continued, walking over to his wardrobe, “I know we said we’d continue with this tonight, but it’s already getting late. We should head out soon if we want to get things started.”

Already? They’d only just finished, and Ryunosuke wasn’t sure if he was ready to dive back into that crazy, lust-filled ocean yet. But when he heard Sholmes mutter a curse as he ripped through one of his shirts by mistake, Ryunosuke suddenly couldn’t wait to pick things up where they left off.

Chapter Text

Something unnatural was happening, that much Barok knew. He was an avid enthusiast of going for walks in the many lush woods around London. Often after nightfall or on his days away from the courtroom, he’d let his legs and mind wander about. It was a great method he’d been using for years to relieve tension and focus on any curiosities in a diabolical case. As of late though, many of his favorite spots appear to have been trampled. Trees all around crushed, leaving disorder in many of the forests. They weren’t simply cut down by lumberjacks but looked as if they’d been completely uprooted and demolished. What could cause such destruction? Barok had been asking himself that question every time he found another acre of damaged trees, as he was now on a foggy night.

One with more outlandish theories and beliefs would speculate there was a monster in the woods, knocking down trees like they were houses of cards, but Barok wasn’t that foolish. It was more likely the aftermath of some testing. Perhaps the government was secretly trying out new machinery to cut down trees more efficiently. Nonetheless, Barok didn’t know the truth, so he carried on with his nighttime retreats.

Tonight, rather he liked it or not, Barok stumbled upon the truth. He was perplexed when everything grew darker in the midst of his stroll, but when he looked up, Barok realized the moon had vanished from his sight. No, that’s preposterous, something was simply blocking the moon. Something huge.

Not wanting to get involved, Barok was prepared to back away and inform the authorities that a large unknown object was in these woods. Then, he heard a familiar booming voice shouting out, “Ryunosuke, come closer!” That voice… it was undeniably one Mr. Herlock Sholmes.

“That detective,” Barok muttered, “I knew his inventions were to blame for this ruckus.” That must be it. Whatever this massive object was happened to be one of Sholmes’s inventions and the source of the trees being uprooted. For one reason or another, Sholmes was using his machinery to ruin the forests, and Barok would not stand for it.

Barok stomped forward, determined to confront Sholmes and get him to stop. He couldn’t understand why Sholmes’s voice had sounded so loud, but the closer he got, the more horrified Barok became. That huge object wasn’t some strange, gargantuan machine Sholmes had built… it was Sholmes himself! And not just Sholmes, but those two Nipponese lawyers as well. The trio were growing far beyond the clouds while sitting in front of Barok’s panicked eyes. He couldn’t see exactly how big they were due to the fog, but their monstrous silhouettes were large enough to freak out Barok.

“What on earth?!” Barok shouted out as he got close enough to see clearly. He was met with layers of muscled tan skin taking up his vision, expanding as far as he could see. They weren’t just big, they were absolutely colossal.

Despite how tall they were, Ryunosuke had heard the prosecutor’s startled cry from many yards below. “Oh! Um, hi there, van Zieks,” Ryunosuke said meekly, and all three giants went silent. Barok looked up with a mixture of disgust and rage. They were so tall he couldn’t even see their faces. Their extremely muscular, borderline grotesque physiques were off-putting, but Barok wouldn’t be intimidated. He’d make them stop one way or another.

“I will be reporting you all to the police for the disturbance and destruction you’ve caused.” Barok stated flatly before jogging away in case the three giants had any funny ideas and tried to stop it.

“Hold on,” Sholmes cried out, but Barok wasn’t about to play the detective’s asinine games. He was a man determined and kept running forward for minutes. He could hear the loud rumbling behind him, presumably the trio following him, but Barok refused to look back or slow down. That is, until he felt a hand on his shoulder. A normal-sized hand at that.

Spinning around, Barok came face to face with the three once again, but they were back to their normal forms. On closer examination, they were not quite the same. They all seemed slightly taller. A tad more muscular here and there. They all held onto three odd-looking devices, but most notably, the trio were entirely nude, surprising the usually austere Barok.

“Now, let’s not get hasty,” Sholmes started, “Instead of running away, why don’t you join us?” Sholmes had a convincing, overly saccharine smile, like a salesman preparing to scam a naive customer.

“Join you? And your sinful behavior? I’d rather not.” Barok turned away again as he heard Sholmes sigh and request for Kazuma to fetch the spare device, whatever that was. When he heard pounding footsteps from behind, Barok was ready to strike in case any of them attempted to ambush him, but he only felt something cold being placed upon his head.

“What do you think you’re doing?” Barok growled out as he spun and looked down at Kazuma. The Nipponese fellow donned the machine he was holding earlier and stood with a smug smirk. His hands were on his hips as he puffed his sizable chest out. Barok hated to admit, but it took everything in him to maintain eye contact and not look downwards towards Kazuma’s manhood.

“I’m thinking about how big you’re about to get,” Kazuma stated with blunt confidence. Before he could elaborate, Barok felt it. He looked down at his body and clenched his fists shut, feeling himself warming up as his muscles pushed tightly against his outfit. Heat rushed to Barok’s face and penis simultaneously. What the hell was this?!

Caught off guard by the pleasing growth, Ryunosuke stepped forward and put his own helmet on. The growth only accelerated now that both Ryunosuke and Kazuma had their machines activated and their attention on Barok’s muscles, making him moan unexpectedly. Barok, none the wiser, could only stare down in horror, arousal, disgust, and curiosity. Ryunosuke sensed his conflicted emotions and elaborated on what was happening, “To make a long story short, these helmets detect our thoughts and can change someone’s body. So me, you, and Kazuma can alter each other however we wish. And we want to see you bigger.”

“Add me to that list,” Sholmes interjected, placing his own helmet on and joining the fun as Barok’s muscles continued to spurt outwards. Barok would’ve objected to Ryunosuke’s impossible words if he weren’t being grown by the three of them currently. As they imagined Barok as a giant, his clothes became uncomfortably tighter, an increasingly large amount of rips forming in his expensive outfit.

Barok wanted to be mad. He wanted to be furious that the three of them ruined countless of London’s beautiful woods and now they were messing with his physique without his permission. But experiencing the overwhelming euphoria from growing, he couldn’t be upset. It was clear to all how much Barok was enjoying it by the way his thick cock made an impression against his pants, already well over twelve inches. He didn’t understand the reasons, but all this muscle and power entering his body turned him on.

Sholmes was standing right in front of Barok as the detective resumed his own expansion. Barok watched as the already well-built blonde packed on intense size without flinching. Feeing confident, Sholmes got close to Barok, fingers curling around the prosecutor’s crotch. “Now you know what it’s like. We promise you can join us in our fun as long as you keep quiet about all this. What do you say? We’d be happy to have you.”

Barok didn’t give an answer. Not in words, at least. Instead, the Baker Street trio watched as Barok’s clothes literally exploded off of him. Within seconds, he was piling on dozens of pounds, his cock springing out and hitting Sholmes in the chest as Barok groaned uncontrollably.

Kazuma couldn’t help but chuckle from how eager Barok became once he started to grow. He felt similar during his first experience with the helmets. He was initially annoyed with Sholmes’s antics, but once he saw how much Ryunosuke loved it, Kazuma quickly became obsessed with it too. Their nighttime growth sessions were Kazuma’s favorite time of the week, though he’d occasionally sneak off on his own to see just how big he could get by himself instead of sharing the room with two other giants. Now he’d have to share with three titans, but Kazuma wasn’t complaining. Just more meat to deal with.

“Barok, you do realize you’re gonna have no clothes to change into once we shrink back down, right?” Kazuma sassily questioned, but Barok was too overcome with lust to care. All four men were imagining themselves getting as big as possible, filling up the forest with their mass. Their behemoth muscles pushed up against one another. Each of them swelled beyond all logical reason and they’d touch each other in all sorts of ways over time. Ryunosuke would fondle Sholmes’s pecs as Barok pounded into Kazuma relentlessly one moment, then the next, Ryunosuke would be licking and worshipping Kazuma’s cock while Sholmes was all over Barok’s vast thighs. It only took a few minutes for each of them to surpass twenty feet in height and thousands of pounds to their frames, yet they continued. Thankfully, after smashing the helmets by mistake during their first time growing, they started to make their heads bigger too to avoid repeating those earlier errors. Even with that correction, all of their broad shoulders were still dangerously close to pushing against their machines. It was one mighty, sweaty blur as the surrounding trees started to become level with their heads. Then their chests. Then their waists. Soon the entire forest felt like a patch of grass as the group kept going, yearning for more.

As Ryunosuke was balls deep in Barok, he commented on their size, “We must’ve surpassed our record by now… I can barely even feel the trees against my feet anymore!”

“And we’re just getting started. We have to make this introductory night memorable for our newest member, after all”, Sholmes said, his dick currently being squeezed between Barok’s mountainous pecs. Barok could only groan in response. He hadn’t spoken a word since his transformation began, but he was as delighted as the rest of them that they weren’t stopping any time soon, having quickly grown fixated on the sensation of his muscles inflating. If this lasted for an eternity, it’d be too short a time for Barok’s taste.

None of them realized just how transfixed they were with their growth until the sun started coming up over the horizon. Ryunosuke was the first to shoot Sholmes, their unofficial leader, an inquisitive glance. Maybe they were going too far? Ryunosuke’s minuscule doubt was shot down the moment Sholmes added another million pounds to each of them. Standing well over a mile, any one of them would weigh several thousand tons by now, and yet they still could easily go for another billion pounds of muscle and then some.

“Even if all of London sees us, so be it. Let’s keep this up as long as we can,” Sholmes demanded, and nobody objected. None of the four wants this blissful moment to end. Ryunosuke, Kazuma, Sholmes, Barok… they’re all so big, so powerful, but they can and will become so much bigger. Having already outgrown the forest, the titanic group was growing dangerously close to nearby cities. Ryunosuke faltered for a brief second, but he refused to quit now. After all, what’s a single forest in the grand scheme of things when they could be bigger than all of London? Or… the country. No, larger than that. Ryunosuke started to imagine what it’d be like to have entire planets stuck between his pecs, and curiously enough, that still felt too small for him.

“Does this…” Barok said abruptly, snapping Ryunosuke out of his ferocious train of thought, “…ever end? Is there a limit to how big we can get?” Ryunosuke was about to reply, but he was cut off with a loud groan as Kazuma and Sholmes stuff their cocks into him. The pair cry out together as they start to cum, flooding into Ryunosuke’s metropolis-sized ass. Ryunosuke followed soon after, pool-sized globs of white flying into the sky to splash upon the ground miles below. That was, what, his twentieth orgasm of the night? Coming down from the high of his climax, Ryunosuke joined Sholmes and Kazuma as the three men surround Barok, touching the prosecutor’s muscles as they answer his question in erotic unison.

“I hope not.” Those three words sent them over the edge as they outgrew all of Great Britain in seconds. The band of titans knew in that instant that this growth would be irreversible. They couldn’t turn back now. Ryunosuke would’ve felt bad for how destructive they were being, but currently, Barok was fucking his brains out, watching with glee as the formerly frightening prosecutor’s pecs jiggled with each mighty thrust. He glanced over and saw Kazuma and Sholmes making out, equally uncaring.

Ryunosuke understood that their weekly nights of growing in secluded forests were over. This was the dawn of something new. Something unstoppable. Because deep down, Ryunosuke never wanted this to end, and he knew his fellow titans shared the thought as the planet beneath him started to shake and rumble. Looking up at the array of stars in the shimmering sky, all Ryunosuke could picture was how he and the other three giants would continue to endlessly fill up every nook and cranny of the universe.