Long Story #1: A Mathematical Certainty: The Poobotomy (P1)
🕑 Added 2025-10-20 18:59:39 +0000 UTC
Long Story #1: A Mathematical Certainty: The Poobotomy
(Content Tags: Heavy messing, diapers, ABDL victim, severe brain-damage via niche means, dark end, light sexual stuff, humiliation, brothers)
"There's no escaping it, Matty. I crunched the numbers perfectly, and they don't lie. You do know that, don't you?"
It was a mathematical certainty that would be the face of his inevitable demise. A calculation that guaranteed the result that had been decided upon for him. It was by that clean arithmetic, that assured things would become very dirty in the very near future.
Matthew, or Matty to the punk in front of him, had been reduced to a variable in an equation. He was but a number on a piece of paper, one which had been tirelessly worked upon.
The one who had spent so much time running calculations? That would be Martin, or Marty, his fraternal twin brother.
The pair of young men had long feuded and fought, throughout their childhood and adolescence, and even to this day. Twins or not, they couldn't have been any different!
Matthew was an athlete, a horndog, and an all-around douchebag. Martin on the other hand, was a mathematical genius, a prude, and seemingly a very polite fellow. The chasm between them had only grown wider over the years, until now, where nobody would even assume their relation, if not for their shared surname.
A lifetime of competition between them had made for some exceptionally bitter bonds, and while Matthew had long ended up on top, it was finally time for Martin's specialty to shine. In a home where sports were king, Martin may never wear the crown, but he could make sure that Matthew never wore it either, except for maybe as a contestant in the Special Olympics.
College was the final contest between them. Both boys had recently graduated high school, and while they should have been impressive enough to earn full-ride scholarships in their own categories, their eligibility had been shot apart by a single bad decision a year earlier.
Ultimately, their parents only had saved enough to send one of them to college. So who should be the one to receive the funding?
Martin, the one who wanted to become an engineer? Or Matthew, who wanted to go professional with the old pigskin? It felt like it should have been an obvious decision to Martin, but his brother had always been the golden child, and their ignorant parents were deluded enough to believe that Matty would be the next Tom Brady.
It wasn't a definitive decision that had been announced, but Martin could read the writing on the wall. If he didn't do something drastic, then he would be relegated to a life path of mediocrity, all because of Matty's selfishness.
It was an unacceptable outcome.
Luckily for Martin, it wasn't an outcome that was beyond manipulation. The only question was how he should go about it, to make damn sure that Matty never saw a dime of the tuition that Martin so obviously deserved.
The idea that would come to him would be one based on the football star's biggest secret, the one that Martin had kept locked in the pocket since they were both little kids.
Matty had a peculiar...Proclivity. One that sickened Marty's regressive views on sexuality.
Matty was into the whole 'diaper' thing. He was an 'adult baby', and while not a single other soul knew, Marty had been sitting on that knowledge since the pair had gotten out of diapers as children. It was only by second-hand embarrassment and the clear threat of being utterly pulverized, that the nerd had never divulged such a thing.
He'd thought of it as just something strange, whenever they were kids. Marty thought it was gross and shameful, especially to see his brother dig used diapers out of the trashcan of their cousin's house to wear, but he hadn't connected the dots until he was older. By the time of late middle school, whenever Marty had been exposed enough to the internet, he was able to identify the exact nature of Matty's degeneracy.
Matthew wasn't ever all that aware of what Martin knew; while Matthew had been far less guarded in childhood, he'd learned to hide his desires before they'd left elementary school, and he'd assumed that his brother had left such knowledge behind in the annals of their childhood. He certainly didn't think Marty knew about the stash he kept hidden in his closet, or what was easily a gigabyte of dirty diaper smut on his harddrive.
And what irony! That the big, bad 'football star' was in actuality such a pathetic baby by his own choosing! The slayer of puss himself, the party boy, the bully!
But Martin did know, and with that knowledge, he'd decided quite easily what Matthew's fate should be.
Their parents were gone for the weekend, on some trip to a romantic destination. The brothers were obviously old enough to watch over the house, and luckily for Martin, his brother had clearly defined that his only plans for the weekend were to smoke weed and play some Xbox.
It was perfect. It was also the final opportunity for Martin to make things right, and he'd spent the last few weeks making sure that things would go off without a hitch.
The first step? Putting his brother's pothead tendencies to good use.
"Yeah, someone was supposed to pay me for doing their entrance essay, but they ripped me off. Just gave me this stupid bag of gummies...Said that they wouldn't even work that well unless you eat the whole bag."
Bait dressed as a complaint. He'd made a show of being upset and going to throw the bag away, since he detested marijuana, but his meathead brother had taken the bait.
Hook, line, and sinker.
Marty demanded to be paid for them, knowing full-well that Matty wouldn't give him anything for them, and instead that Matty would only threaten him with a pummeling. This helped make it seem as though he didn't want to give Matty the bag in the first place.
And like the hedonistic glutton he was, Matty had indeed downed the whole bag, just as planned.
The gummies were a special concoction that had taken tireless nights to formulate; they did have THC in them, but that was a minor detail in comparison to what else they contained. Each one was pressed with an extremely dense payload of fiber; a single gummy was more than a daily recommended dosage of fiber, to be exact.
So precise the measurements had been...No room for error, and thanks to Martin's knowledge of his brother's habits, no error had occurred. Matty had gorged himself on the whole bag, as to chase the high he so sought, and so the die had been officially cast.
That actually hadn't been the first step of this little conspiracy, though. The first step had happened earlier in the afternoon, whenever Marty had mentioned winning a gift card in a contest, to a buffet place that he knew his brother loved. That was where the initial seeding had happened, and that was where he'd had to prepare many of the final calculations, based on what Matty ate.
The amount of gummies in the bag would be directly proportional to the amount that Matty ate at the buffet. Luckily, his brother was perpetually in the 'carb loading' mindset, so his appetite didn't disappoint.
Additionally, once the THC kicked in, and Matty was getting very high, it was all too easy to tempt him with further culinary delights as the evening progressed: pizza, barbecue, chips, cookies, et cetera. His munchies hit new highs, and that assured that he would fill up just enough to meet the careful calculations that Marty had set up.
It would be later that he eventually greened out from the intensity of the high, and Martin would take his time to steel his nerves for the final parts of his plan. Whenever Matty woke up, somewhat disoriented with a bloated feeling, Marty would be there to pretend to chide his overconsumption, while offering him some 'Pepto Bismol'.
The pink drink wasn't what Matty thought it was.
No, it was just another concoction designed to mess with his body. It consisted of a carefully dosed muscle relaxer and a highly potent laxative of sorts that would painfully stimulate the bowels.
It didn't take long for the larger man to become physically incapacitated, and once he had, Martin casually came out with the package of adult diapers that Matty had thought he'd been so sly in hiding away. At the time, the muscle relaxer had been far too imbued within his system for him to even pose much of a question, and so Marty had taken his time in stripping Matty down to his birthday suit, while Matty could only quietly groan and look confused.
He loved seeing the panic on his brother's face though, whenever he pulled out one of the giant diapers and began to unfurl it.
“W-where did you g-get that…” He would moan quietly, his panic veiled by the forced calmness that’d been inflicted upon him.
“You should know where I got it, shouldn’t you? It came from your closet, after all. I wouldn’t know the first thing about finding your weird pervert Pampers, Matty. Hell, I had to look up a video to figure out how to even put one of these on a grown adult, though I’m sure you’re well acquainted with that process for yourself…”
Martin dragged the process out, not just because of his lack of familiarity with it, but because he wanted Matthew to have to soak it all in. He slid the bulky garment underneath the jock’s buttocks, and then he began to smear an anti-rash paste across his brother’s cheeks, thankfully using an appropriate instrument to do so. Next would come the bountiful puffs of powder, much of which adhered to the sticky paste, making Matty’s backside look much whiter than it should have. The smell was sweet, soothing, but it was a heavy contrast to the darkness of what was to soon come.
“A little ironic for the ‘big man’ in the house to want to be some kind of baby, isn’t it? Also pretty ironic to see such a big dick being put into a fucking diaper, huh?” Martin commented dryly, not doing much to hide his prudish disgust at his brother’s sexual sensibilities, while also betraying some level of envy over yet another attribute that his ‘twin’ had been blessed with instead of him. “That’s okay though, you’ll be needing a big diaper for that big dick, with how much you’ll be spurting in it.”
“W-what the...The fuck...Are you doing..?”
“Isn’t that the most obvious part, Matty? I’m putting you in one of your little pairs of pervert pants. If I’d decided to go somewhere this weekend, I’m betting you would have ended up in a pair by your own hand, right?” Martin clicked his tongue, making sure to tightly bind all four tapes to the landing zone.
“T-that’s not...I don’t…”
“Not what you meant? Or more likely, not all of what you meant, right? Yeah, I know, but I don’t want to rush things. Let’s just start with the basics. I know you probably thought that I wouldn’t remember, since you learned about what shame should mean by the time we were going into sixth grade. You stopped making so many suspicious comments about diapers, except for maybe the occasional ‘joke’, and you stopped that gross habit you used to have too… You remember the one, right?”
Martin didn’t wait for an answer, nor did he really expect one.
“...Digging diapers out of the garbage? Like, when we were at our cousin’s house? Or at a neighbor’s house? Or when we went to that after-school daycare thing? What, did you really think I’d just forgotten about all those times? You didn’t hide it from me for the longest time, and when you did, you were terrible at hiding it. Taking pissy or shitty diapers from the trash, sniffing them, putting them on and using them…” The leaner boy couldn’t hide the disdain from his voice, as he was made to remember all the times that Matthew had showcased such extreme behaviors in the past.
“Any port in a storm, right? Was that it? Or was it part of the thrill, for them to already be dirty? That’s fucking gross, you know that, right? I guess at the very least, it helped give you a better immune system; you got sick a lot less often than I did, hmm?”
Matthew couldn’t make eye contact by this point, too deeply ashamed to look at his brother. He knew every word to be true, and while he’d hoped that Martin wouldn’t have remembered any of the things he’d done as a kid, it looked as though that hope had been naive.
“Oh, don’t look so glum! I might think you’re gross, but you’re still my brother, so I’m going to give you everything you ever wanted. My charity isn’t without strings attached though, because you’re going to be giving me something in return: you’re going to give me the tuition money that I obviously deserve. Going to college for some football dream is silly, and it’s a waste of resources. Resources that would be better spent on the brother with a brain, don’t you think?”
“T-they haven’t p-picked yet…” Matthew grunted, wincing as he felt some pain starting to grow more intense in his belly.
“Don’t insult my intelligence, Matty. Mom and dad, bless their hearts, are just as hopeless as you are. They’d rather gamble away the future on some longshot, just because they like sports, rather than put that money toward a surefire thing, like me becoming an engineer. They haven’t said it yet, probably because they realize how stupid it would sound out loud, but we both already know what their decision will be. If I thought I could just ask you to give it up, then I wouldn’t have had to do something this elaborate; this wasn’t my first choice, obviously, but it will tie everything up quite neatly.”
The larger of the two still looked confused, in no small part because of the dazed feeling that the muscle relaxer had inflicted upon him. It was obvious that Martin would have to spell everything out. “I-I still don’t understand… How is this going to…?”
Martin let Matty’s incomplete question hang in the air, before smiling and giving the thickly padded material around his crotch a firm pat. Without an immediate response, he pushed Matthew off the couch, making him tumble onto the floor with a crinkle from the freshly taped diaper.
“I’m getting there, Matty. Rome wasn’t built in a day… Not that you would know anything about history.”
Barely able to lift himself up, the football player was able to manage getting himself onto his hands and knees on the carpet. From Martin’s standpoint, Matty looked utterly ridiculous: wearing nothing but a giant diaper, one that looked no different than an oversized baby diaper, and in position to crawl like an infant. It would be the perfect posture for him to take though, for what hell would come next; as if to tease the next step of the plan, a dry fart blasted loudly into the garment, which seemed to only bring further discomfort to the larger boy’s face.
“You’re feeling pretty full, aren’t you? Got a sore tummy? Well, you did eat like a big, fat pig. At the buffet, and then later at home… If I had to guess, then I’d say you need to take a dump, right? A pretty big one, at that. Unfortunately for you, I don’t think it’ll be that easy. Why don’t you give a little push, hmm? Try to get all those icky poopies out, huh?”
Matthew gave his brother an indignant look, but he was too sapped of his strength to lift himself any further off the ground than he already was. Another toot darted out, and he winced once more, from the overwhelming cramps that had started to seize up his gut. Meanwhile, Martin began to slowly move around the immediate space of the living room, setting up a few webcams from different angles.
“S-so this is blackmail? Y-you’re going to t-take a video?”
“Of you shitting your pants? Well, yes and no. The video is going to be a bonus, because I want a nice dorm whenever I go off to college.”
“...Huh?”
Martin clicked them all on, and then opened up his laptop on the coffee table. He seemed to ignore his brother’s queries, instead focusing all his energy on getting something set up. It’d been an eleventh hour addition to his original plan, and perhaps the part he was least proud of, but the temptation had been too much to resist; while plotting things out, and learning more about the bizarre subculture that his brother was into, he’d come across darker things.
Darkweb things. No, not just things, but people. Darkweb people, who would love nothing more than to be clients. The most depraved members of society, who kept themselves faceless, but whose desires were quite naked. As it turned out, there were an affluent handful of those who would pay good money to see this process in real time, and Martin felt it would be wasteful to not take advantage of such a fine business opportunity.
(Continued in the next post)
