DAY 1

Yuri slowly yawned and stretched her arms as she awoke. Today was a big day, today was the day she'd be joining her schools literature club. Yuri shivered in nervous anticipation as her feet hit the floor. She had always been a shy girl, but this new club could give her the chance to make new friends who were as interested in books as she was. And at the moment it was only a small club with two members so she wouldn't have to do much socializing she mused as she opened her wardrobe. Immediately after opening it she took out her uniform and glanced at her large stack of basic adult diapers. Suddenly her head began to swim as she vaguely remembered wearing them everyday but for some reason she couldn't remember how they felt, almost as if she had never truly worn them at all. She shut the wardrobe confused. They were clearly hers, but she didn't need them, so why wear them? Realizing the time, she quickly dressed, took the first book she could grab off of her esteemed bookshelf, and ran out the door to catch her bus.

The school day whizzed by and in no time Yuri was standing at the door to the literature club clutching her book to her chest. Her heart was pounding. This would be the first time she had initiated social interaction in some time. She slowly inhaled, and gently knocked on the door before stepping in. She was surprised to see two happy faces look up to greet her. Both girls walked forward to her. The tall brunette warmly shook Yuri's hand.

"Hi, I'm Monika, and I'm the president of this literature club. And this is my Vice President Sayori!" Monika motioned to the shorter girl with a bow in her hair. "I see you've brought some reading material with you. Are you here to join our club?" Her emerald eyes gazed with intent , looking Yuri's body up and down. It was a bit unnerving, but Yuri nodded.

"Ye..Yes. Yes I am. And my name is Yuri by the way. It's nice to meet you both." Yuri stammered nervously before finding some confidence.

Sayori reached over and playfully grabbed Yuri's book. "Hey Yuri, what book did you bring? Is it a good one?"

Yuri smiled knowingly, not even needing to look down at the cover of her book to know it was of fine quality, as any book on her bookshelf was. "Oh yes this is a fine book, one of my favorites. It's titled.." Yuri pulled the book from her chest and stammered in shock.

"No need to be shy, let me see it!" Sayori playfully grabbed the book from Yuri's hands and her eyes widened. "101 Remedies for Diaper Rash. Um okay, I guess?" Sayori handed the book back to Yuri, clearly confused. Yuri was just as confused and was blushing deep red as she stared at the book in her hands. There was no way this thing had been on her bookshelf.

She glanced up at Monika grinning from ear to ear. "Oh it's no big deal, we're able to read whatever books we want to in this club isn't that right?" Yuri felt unsettled as Monika's eyes met hers. She quickly looked down at the floor.

"This must be for my little sister. I clearly grabbed it by accident when I rushed to get to school." Both girls smiled knowingly, but unconvincingly. At least neither of them knew she was an only child.

Monika broke the awkward silence. "Okay ladies, we've all got our books so why not read them? This is a literature club after all, am I wrong?" Monika asked the two girls and they shook their heads and headed off to separate desks to read. Yuri was forced to read about diaper rashes and the more she read the more she felt like she knew this topic well and it was useful to her.

After a few minutes of deep reading, Yuri felt a distinctive pressure on her bladder, and instinctively went to release it into her diaper. Yuri heard the hissing sound and began feeling a wet patch on her butt. She instinctively tensed up at the feeling and looked down. Gasping in shock she realized she wasn't wearing a diaper and had just soaked her panties and the back of her skirt. She shifted in the hot, damp underwear. As if she knew, Monika walked up behind Yuri and laid a hand on her right shoulder. "Yuri? Are you okay sweetie?"

Yuri bolted up in embarrassment, covering her damp crotch with her book. "Uh… I'm sorry but I have to go!" Yuri blurted our hurriedly as she rushed out the door.

As she got out of the room she could hear Sayori's concerned voice. "Monika, did Yuri just wet herself?"

DAY 2

Yuri woke up just as she always did, yawning ever so slightly and stretching her arms. She got out of bed and went to her wardrobe. Instinctively, Yuri grabbed her school outfit and her trusty diapers. She hazily remembered having an accident the day before for some reason. Conveniently forgetting the embarrassment that followed. She smiled at herself, what a silly girl forgetting to wear her diapers. That mistake wouldn't happen again. Yuri laid back on her bed and pulled up her skirt revealing her cleanly shaven pussy. She then rubbed both baby powder and lotion in her diaper area just as the book she read yesterday had suggested. She then pulled the front of the diaper up and taped it securely shut. There we go, all snug and safe. No more accidents for this girl. Yuri hopped off of her bed and heard a slight crinkle she had grown allbut used to now. She unashamedly walked out of her house with her backpack on her shoulders and boarded the bus for another day at school.

Once again school was over in an instant. Yuri couldn't wait to see her new friends and the literature club. They'd be so excited to see all the books she had brought! She hurried off to the classroom the club was held in and knocked on the door before entering. Immediately she saw Monika, Sayori, and a new girl with pink hair turn their heads.

"Oh hi Yuri welcome back!" Sayori ran over and hugged Yuri, then slid her hand down to Yuri's bottom and squeezed, clearly feeling the diaper. She instinctively whispered into Yuri's ear. "I'm glad you're back, and it's good to see you've got protection this time! Don't worry I won't judge." Sayori then ran back and grabbed the pink haired girls hand dragging her over all while her words rang out in Yuri's head. All her memories of the previous day came rushing back.

Oh my god my accident! That all really happened? Yuri gently moved her legs, feeling the diaper rub up against her. Oh god no. I'm wearing an actual Fucking diaper to school! Why the fuck did I put this on! She tried to steady her breathing. Okay okay, only Sayori knows so far. I can't let anyone else know! They'll kick me out for sure especially after yesterday! I've gotta play it cool. Act like nothing's wrong. This could be my last chance at making friends I can't fuck this up!

Sayori approached again, this time with The short new girl in tow. "Yuri, meet Natsuki our newest member. And Natsuki, meet Yuri, she joined our club yesterday!" Yuri looked over Natsuki for a moment before speaking. She was short, that much was obvious. She had short pink hair too, and wore a bit of a scowl on her face. She seemed a little mean for such a tiny girl.

"Hi Natsuki. It's…" Yuri shifted uncomfortably thinking about her diaper. "It's nice to meet you. What do you like to read?"

Natsuki responded nonchalantly. "Mostly manga I suppose." Yuri would have scoffed at that admission on any other day, since Magna was clearly meant to be read by children. But considering her current undergarments she refused to say a word. Yuri could feel Natsuki's eyes pierce her soul as she asked "And what books are you into Yuri?" Yuri glanced around nervously, being put on the spot like this. She was sure the books she had brought would cause serious embarrassment once again, and this time there would be no excuse. As Yuri stood there motionless, afraid to answer, Natsuki grabbed her book bag. "Oh don't be a baby just let me see already!" Yuri lunged for the strap and yanked it away sending the books flying out of the bag. Her eyes grew wide with fear and she ran over to them, bending down to pick them up before anyone saw the titles. As she was hurriedly grabbing them she heard Natsuki burst out laughing.

Yuri turned around to see Natsuki attempting to point at her while doubling over laughing so hard tears began to form. "Hahahaha oh my god! Bwahahaha! You're...haha… You're wearing a diaper! Hahahaha!" Yuri's cheeks blushed a deep red and she realized that by bending down to get the books she had just exposed her diapered butt for the entire club to see. Natsuki continued to talk through her laughing fit. "Haha when I called you a baby I didn't realize I was actually talking with one!"

At that Sayori rushed over and put her arm around Yuri, whom at this point was almost on the verge of tears. "That's enough Natsuki! It isn't Yuri's fault that she has to wear diapers, isn't that right Yuri?" Yuri looked at Sayori and nodded, but felt the last drops of a heavy wetting fill her diaper. She wasn't sure when she started but she assumed it was Natsuki's laughter that startled her and made her lose control.

Natsuki continued with her humiliating barrage. "Just look at the books!" She held up one that had fallen beside her. "Diapers, Dating, and Drama: A High Schooler's Guide to Staying Dry. Hahahaha! Do you actually use those things?"

Yuri became rigid in fruitless defiance. "Of course I don't!" She lied through her teeth. "What do you think I'm a baby?" Before Natsuki could respond Monika stepped in.

"Ladies that's enough. Our club members undergarments aren't our concern. We're here for literature club. I understand drama can be fun but we need to leave it at the door. So who's up for some reading to start off the day right?" The girls nodded and mumbled their agreement, then sat at their desks to read. As Yuri sat down she felt her diaper squish all around her. Her privates were swimming in her urine. It felt kinda good against her twat but she felt like her diaper was gonna pop with how much liquid was in it. Yuri desperately tried to focus on her book, but the fear of leaking continued to creep in the back of her mind. Just one more ounce of pee and it would burst she thought to herself. Little did she know it was already too late.

She felt eyes on her and looked to her left to see Natsuki grinning at her. "Hey Yuri, what was that you said about not using your diapers?" Yuri looked down confused, only to feel mortified when she realized her diaper had been leaking the moment she sat down. Warm pee was soaked into her skirt and puddles up on her chair and the floor beneath. She balled up her fists and began to sob, hitting the table in frustration like a child throwing a tantrum.

"No no no no! Not today! Please not today!" She said angrily through tears. Yuri felt two gentle hands on her back and began to calm down.

"It's okay Yuri, we all have accidents sometimes. Would you like me to help you?" Sayori's sweet, caring voice calmed Yuri down a bit and she nodded, not knowing what kind of help Sayori was offering, only knowing she needed all the help she could get at the moment. Sayori took Yuri's hands and gently pulled her to her feet. Yuri saw Monika pull out a pink fleece blanket from the closet and watched as she laid it down on the floor. "Now lay down on the blanket Yuri." Sayori commanded in a gentle tone. Yuri compiled and laid out on her back, looking up at the girls, too dazed and upset to understand what was about to happen until Natsuki blurted it out.

"Holy shit Sayori, you're really going to change her diaper!?" She exclaimed out of shock. Yuri's eyes went wide.

"Wait. No. I… I can do it myself." Yuri said softly, while she slowly began to sat up. Before she could fully sit up she felt two hands firmly push her shoulders back down to the floor. Looking up, Yuri saw Monika's face smiling down at her, almost creepily.

"Now now, Yuri. Let us help you get changed. We're all friends here." In any other circumstances Yuri would've argued that this is in fact not what friends do, but she was so emotionally drained she said nothing.

Natsuki continued her barrage of insults. "I cannot believe this. A girl who's technically older than me is getting her diaper changed like a fucking baby! This is hilarious!" Monika snapped at her.

"Natsuki I swear if you say one more word I'll put you over my knee myself! This is a club for everyone and you need to get over this and accept that!" Natsuki shut her mouth and sat back down in her desk, leaning over to watch as Sayori began the act.

Yuri initially blushed as her skirt was pushed up to her belly and Sayori undid her diaper. She felt cool air hit her sensitive moist skin as Sayori pulled back the soaked diaper, revealing Yuri's private parts to the whole club. Out of instinct she went to cover herself, but felt Monika pin her hands over her head. Nobody said a word as Sayori pulled the soaked diaper from underneath her bottom and began to gently wipe her clean. Yuri figited, feeling the cool damp wipes against her sensitive skin. Sayori rummaged through Yuri's bag and pulled out another plain white adult diaper. "Aww that's a shame, these are cute and all, but I was hoping for something cuter!" Sayori exclaimed to no one in particular.

"Oh that's alright Sayori, I've got it covered." Yuri felt her hands free up as Monika reached behind herself and pulled out an extremely childish looking adult diaper. It was still white, but had colorful toy blocks printed all over it. Yuri groaned a little at the sight. "This ought to do the trick it's very absorbent." Monika handed it to Sayori.

"Did you hear that girlie? These are extra absorbent so you don't leak everywhere like a fountain!" Sayori happily exclaimed as she waved the diaper in Yuri's face. Yuri began to blush again and she heard Natsuki choke back a giggle.

Sayori began to unfold the diaper but Monika stopped her. "Shouldn't we remove Yuri's skirt first? It's covered in piss."

Sayori agreed. "Oh of course! I hadn't thought of that!" Sayori began tugging Yuri's skirt off and she blushed a deep red. Two girls were talking about her as if she wasn't there, and were stripping her clothes off like she was a baby! It was insulting and made her feel weak and small. Who gave them the right to see her naked like this and wipe her like a child? Yuri began to struggle with a newfound sense of independence, but only felt Monika grip on her wrists tighten.

"No no no little lady, let Sayori finish changing you." Yuri pathetically kicked her feet, which only made the removal of her skirt that much easier. She was now laying spread legged on a baby blanket with her shaved cunt and round bottom in full view of everyone. She closed her eyes and pretended it was all a bad dream as Sayori lifted her legs and slid the new diaper underneath her tushy. As her eyes were closed she could feel Sayori's soft hands begin to spread baby lotion all over her private area. Yuri began to softly moan from the touch and the sound caused Natsuki to burst out laughing. The laughter startled Yuri and as her eyes opened she saw Monika's face grinning down at her as her legs shifted in pleasure. But the pleasure was soon over as Sayori lifted the front of the diaper and taped it shut. Yuri felt conflicted. On one hand her pussy yearned for more attention, but on the other hand, she was being watched and was already humiliated enough after this tender exchange.

Monika let go of Yuri's hands, stood up, and spoke. "Well girls I think that's enough fun for one day. I think we're all ready to go home. I can't wait to see you all tomorrow for diaper club!" Yuri's head was swimming in shame and pleasure, but she could've sworn Monika Said diaper club instead of literature club. She looked at Sayori and Natsuki and they hadn't seemed to notice. Yuri wondered to herself. Had she accidentally stumbled upon a club revolving around diapers? Or had she simply misheard Monika? As Yuri thought these things, Sayori grabbed her hands and pulled her to her feet. She immediately felt the thickness of her new diaper. It was impossible to close her legs now, and they bowed out quite a bit. She attempted to walk to her bag but could only manage an obvious waddle no matter how hard she tried. This diaper was massive!

Natsuki walked up behind her and tapped her on the shoulder. "Hey diaper girl, I thought you could use this." Yuri cringed at the name and turned around to see Natsuki holding up a sweater. "You're supposed to wrap it around your waist to cover your massive diaper butt. I figure you can hold your bag in front or something when you walk home. You could use the cover, seeing as you ruined your big girl skirt."

Yuri followed Natsuki's eyes to the wastebasket with the soaked skirt resting on top. "Th..thanks Natsuki." Yuri took the sweater as Natsuki rolled her eyes.

"You can thank me later you big baby." Yuri tied the sweater across her waist and grabbed her bag. She turned to look at the room as she opened the door and saw Monika smirking at her.

"Bye bye Yuri! See ya tomorrow!" Sayori exclaimed as she waved goodbye. Yuri managed an awkward wave and left the building, briskly waddling home.

DAY 3

Yuri awoke to the sound of water rushing, only to look under her covers past her large breasts at the front of her diaper growing yellow. "Great, now I'm a bedwetter." She mumbled to herself, rolling out of bed. She waddled over to her dresser and picked out another copy of the school girl outfit she always wore, and a large diaper with childish prints on them. She laid out all her clothes on one side of her bed, then got her diaper changing supplies from her nightstand. She lay down on her bed and I taped the soggy diaper clinging to her hips. She then took her wipes and masterfully wiped her diaper area clean like she had done it many times pulled out her used diaper from underneath her and placed a fresh one under her clean bottom. She got out her baby lotion and began to rub it into her baby smooth skin.

Before she knew it, Yuri was touching herself inappropriately, and softly moaning from the attention. She didn't know why, but she loved having play time with a fresh diaper to comfort her. Soon she was two fingers deep and drooling in lust over her feelings of pleasure. She popped her thumb in her mouth and began gently kicking her feet out like a fussy baby as she got closer to climaxing. Soon she was sucking her thumb fast and hard, mirroring what her fingers were doing inside of her. Finally she climaxed and her silky legs trembled as she squealed in delight, her thumb lazily popping out of her mouth after it was over. After taking a few minutes to catch her breath, Yuri taped up her diaper and put on her uniform. Her skirt didn't come close to hiding the fact that she was wearing protection but she didn't mind. Her friends all loved her diapers, and who wouldn't? They were super cute. Yuri grabbed her diaper bag and waddled out to her bus stop, eager to start the day.

The school day was a blur. Yuri didn't notice the weird looks she got, or to people pointing and laughing. It all went over her head. She was in ecstasy at the idea of going to her club again. Before she knew it, she was at the door and did not hesitate to open it and walk in. The moment she entered, she saw Sayori smile at her and hurriedly walk over. Sayori hugged Yuri then grabbed Yuri's hand and placed it on her crotch. Yuri's head swam as she groped between Sayori's legs, and immediately felt the all too familiar feel of a diaper. Sayori leaned in to whisper to Yuri. "I'm wearing a diaper too, just like you! This way you won't feel ashamed right?" As if the word ashamed triggered her, Yuri was brought back into reality and realized she was groping another girl wearing a diaper. She immediately drew her hand back, repulsed at what she had done. She stepped back and heard intense crackling coming from her undergarments, and realized she was wearing an incredibly thick diaper that was easily visible to anyone glancing over at her.

Yuri put her hands to her head. What the fuck is going on? Why can't I control myself? She felt as though she was trapped inside her own body, and no longer had control. Except in this moment. She felt independant, and she needed to find one of her many knives. The pain was real. It'd remind her that she was still herself. She clenched her teeth and focused. Okay Yuri, you've got to keep control, no more relapsing. You have to find out what's causing this right now. I'm wearing another fucking diaper and now another girl is too. I cannot lose control again.

As Yuri contemplated her next move, Monika walked up and gently lifted her skirt, squeezing at the front of her bulky diaper. "Well, doesn't look like you need a change yet." She said, amused. "It's nice to see Sayori supporting your strange little habit fully. We're all about positivity here at the literature club. She really is a great number two. Ha! Number two…. Interesting…" Monika trailed off.

Yuri jumped as she felt a sharp smack on her diapered rear. She turned around to see Natsuki grinning at her. "Ha! Got you! You didn't cry though, so I guess you're not a real baby. That's a good thing though because I could use your help quickly decorating some cookies for today. Sayori is too clumsy and Monika is president so it doesn't seem right to ask her. Are you game?" Yuri nodded silently, still thinking, then followed the now content Natsuki over to a plate of cookies and bags of icing. Yuri went to grab a bag but Natsuki swatted her hand away. "Ha! You're not icing these, you're too little. Here, you can put sprinkles on instead." Yuri looked down at Natsuki as she took the container of sprinkles. This girl was like half her height, but had the audacity to call Yuri a little girl. Yuri looked down at her diapered state. Maybe Natsuki was right. Maybe she was just a baby. She was certainly wearing diapers like one. As that thought popped into her mind, Yuri started to feel aroused. Her eyes grew wide with shock and she tried to ignore the aching feeling trapped underneath the thick padding. As she watched Natsuki expertly ice the cookies, the feeling began to ebb away. Yuri quickly sprinkled the cookies and soon all the girls stood around the plate eating their fill.

"Oh my gosh these are amazing Natsuki!" Sayori said through a mouthful of cookie.

Monika shook her head in mock disappointment. "Chew and swallow your food before speaking Sayori, you must learn your manners." She said in an almost motherly tone. Yuri picked away at her cookie. She wasn't hungry right now. Not after all she had just experienced. The shame of wearing a diaper, and then the sudden arousal. Something was off and she had to figure out the cause before it was too late. Once everyone finished eating, Monika spoke up. "Alright everybody. I thought maybe we could try something a little different today. How about we all gather around and I read you all a story?"

Sayori squealed in excitement and Natsuki immediately spoke up. "Read us a story? Are we five? I mean, yeah Sayori and Yuri are wearing diapers but that's just their thing. We're all still high schoolers who can read on our own."

Monika nodded reassuringly. "Of course Natsuki, I just wanted to try something new is all. How about we try it just his once and if you feel the same way after we never have to do it again." Natsuki rolled her eyes and agreed. Monika then turned to Yuri. "What about you, do you want to try this out?" Yuri of course didn't want to go through with something so childish, but she was too shy to say no so she just nodded in agreement. "Okay it's settled then. How about you girls sit in a semicircle on the floor and I'll pull up a chair." The girls obeyed and sat at Monika's feet. She pulled out a book and read the title aloud. "This book is bound to excite some members of the club. It's called 101 Fun Things to do While Wearing Diapers." Yuri watched Natsuki grimace, and Sayori lean in closer as if she was somehow interested. Yuri shrugged Sayori's actions off. She was the vice president of the club, of course she had to support all club activities. As Monika began to read aloud, Yuri zoned out and thought of a way to fix the situation she found herself in.

After awhile, Yuri heard a grunt that pulled her out of thought. She turned to see Sayori squatting down, cheeks red as she began to push something into her diaper. Yuri gasped as she saw the back of Sayori's diaper bulge out. It continued to bulge as Sayori strained for a few moments, before the weight of it caused Sayori to stumble and squash down in her own mess.

"Oops" Sayori mumbled as she sat, legs splayed out, in an obviously soiled diaper.

Natsuki jumped up in shock. "Oh my gosh what the fuck! What the actual fuck! Sayori, did you really just shit yourself?" Before she could respond, Monika butted in.

"Natsuki that's enough, Sayori just had an accident that's all. Isn't that right honeybunch?" Sayori nodded her head, eyes still wide in shock. Yuri knew the feeling of an accident all too well. But messing? That's something she had never considered. She could imagine the feeling of her own shit, smothering her diaper area and she gagged. Poor Sayori. What she must be feeling now is horrendous. Soon the smell hit Yuri like a truck. She gagged more and scooted away. She felt nauseous. Monika soon stood up. "Alright ladies, although this isn't normal, it looks like Sayori needs some help. Yuri, grab your diaper bag. Natsuki, go lay Sayori down and lay her head in our lap so she's comfortable. NO BACKTALK. Do it now, please and thank you." Yuri clumsily stood up and waddled over to her diaper bag. She actually was happy to have it at this point. Sayori wore diapers to make Yuri feel better, and now those diapers were a prison that housed her accident. It wasn't right. Yuri quickly waddled over back to Monika who was already kneeling between Sayori's legs with Natsuki cradling her head.

Yuri knelt down next to Monika and handed her the supplies. Then Monika got to work. She pulled up Sayori's skirt and untaped her diaper. Yuri wasn't sure what was worse, the sight or the smell. She turned her head to look away and took small breaths as Monika wiped Sayori clean. It was over faster than Yuri had anticipated, and when her curiosity got the better of her and she looked back to Sayori, she saw Monika tenderly rubbing baby lotion all over Sayori's diaper area, paying lots of attention to her clitoris. Sayori squirmed in pleasure and made a cooing sound. "Aww does baby like that?" Monika asked, grinning almost cruely. Yuri watched as Sayori nodded eagerly. "Aww that's too bad sweetie, special attention like this is reserved for big girls." Monika whisked her hand away and expertly pulled the diaper up and taped it, trapping Sayori in her babyish prison. Sayori looked like she was about to cry, tears welling up in her eyes. Yuri felt extremely horny by all of this, and it scared her. As she watched Monika hold Sayori to comfort her, Yuri couldn't help but get excited sexually. This was wrong, this was all wrong!

Natsuki voiced a similar opinion. "Monika what the actual fuck? This has all gone way too far. I can be sympathetic to Yuri and Sayori's bathroom issues I guess, but masturbating her in plain view and actively encouraging this kind of behavior? What kind of person are you? You're a fucking lunatic!"

Monika removed Sayori's head from her lap and stood up slowly. Her eyes bore straight into Natsuki's soul. "That's been enough out of you. This group will not tolerate bratty and ungrateful behavior. Apologize right now young lady."

Natsuki scoffed. "Young lady? Fuck you. I'm out of this club, see you never." As Natsuki marched to the door, Monika took two long strides and grabbed her wrist.

"Wrong answer buttercup." Yuri could only watch in shock as Monika swiftly pulled Natsuki over her knee, lifted her skirt and began to rain down hard slaps to her small ass.

"Ahh what the fuck!?" Natsuki screamed, kicking her feet out and thrashing around in a frantic attempt to escape..

"This'll remove the fight from you, you ungrateful little brat." Monika forcefully yanked Natsuki's white cotton panties down and continued her merciless assault of strong, sharp smacks to her backside. After a few minutes of continuous pain, Natsuki quit flailing around and began to sob. Within a couple more seconds the sob became a wail eventually transforming into intense, snot nosed crying. Yuri couldn't look away as Natsuki struggled to apologize through her tears.

"I'm… I'm sorry Monika… Please forgive me." Monika ignored her completely. "Please… I'll… I'll do anything."

It was hard for Yuri to understand what Natsuki was saying through the tears, but Monika stopped mid spank. "Anything?" She asked inquisitively.

"Yes anything, please just stop!" Natsuki responded through gritted teeth, eyes red from the tears.

Monika chuckled. "That's a good girl. Come to club tomorrow in a clean diaper, and bring lots of baby clothes your size. Maybe then I'll have mercy on this precious purple butt of yours." With that, Monika, stood Natsuki up and pulled her panties up around her waist. Natsuki looked up at Yuri staring at her, and Sayori laying on the floor occupied by a sock, gathered her things, and rushed out of the room. Monika addressed Yuri. "Alright Yuri, the club is over. Do me a favor and bring some baby clothes tomorrow as well. I'd rather you not disappoint me. Sayori here seems a little out of it, so I'll take her home. Can't wait to see you tomorrow!" Yuri just nodded shyly in fear, gathered her things and left. As she walked home she began to seriously worry. What had just happened back there? Sayori was acting lika an actual baby after her diaper change, and it looked like Natsuki had finally broken to Monika's will. Yuri wondered to herself. What would she do to stop this?

DAY 4

Yuri woke up in a cold sweat, reaching for the knife she kept in her nightstand drawer. She felt something strange and heard a rattling noise. Pulling her hand out she saw that she was holding an oversized baby rattle. Seeing this snapped something in her, and she threw it violently at the wall in frustration. Throwing her covers off her bed she witnessed her diapered state, with a large yellow stain there as a reminder of her fate. She stood up and fumed. Enough was enough. She didn't know how or why, but she knew she was being messed with, maybe even controlled. She thought back to the previous days events. For the first time she could remember them clearly. She remembered the diapers she saw in her wardrobe on the day she joined her club, and wetting herself in front of the club. She remembered the second day of her club, and how she willfully wore diapers to school that day, only to be reminded of the shame they brought her soon after she entered the club. And then the third day, masturbating in her diapers like a freak, and watching Sayori mess herself and Natsuki get spanked, all while Monika became quickly domineering in a cruel and almost maternal way. It was all insane. And now she didn't have her favorite knife, only a baby rattle where it used to be. Yuri was afraid but determined as she changed into a fresh diaper and dressed into her school uniform. She would not bend to Monika's will and wear humiliating baby clothes. Today would be the day she stood up to Monika and freed herself from this disturbing club.

Yuri skipped lunch as she had skipped her breakfast the past few mornings. She was far too angry and upset to eat. The moment school ended Yuri stormed to the Literature club and took a deep breath before she burst through the door. She saw Sayori in a diaper and pink onesie, sitting in a large playpen playing with blocks, and Monika standing over her smiling. The entire room looked like a giant nursery. Yuri glared at the president, and Monika met her gaze with unparalleled intensity. "Your sick game is over Monika! This ends now!" Yuri stormed towards Monika, fists clenched at her sides.

Monika put her hand out. "Stop." Yuri stopped herself suddenly. "This is no way to address your President, Yuri. Now tell me, did you already make a poo poo and pee pee today? She asked in a sing song voice. As soon as Yuri opened her mouth to utter a defiant no, she felt her bladder and bowels flood her diaper. The feeling was indescribably disgusting. She could feel wet slime coating her butt and the mixture of her movements weigh her diaper down. Yuri gasped as she saw Monika pull out Yuri's favorite knife from behind her back. "Looking for this baby girl?" Monika asked innocently, then without warning began cutting Yuri's clothes off of her body. Yuri knew she should feel shame but the feeling of the knife so close to her skin made her incredibly horny. For those few moments she forgot her pussy was covered in her own filth. All she could remember were those euphoric moments where the blade touched her skin. Monika noticed her pleasure. "Like that baby? Well now that your big girl clothes are all off, maybe I'll let you play with it later." Monika went in to boop Yuri's nose and Yuri's stomach let out a huge growl. Monika let out a hearty laugh. "Aww is baby hungry? How's about we have a little snack before playtime?" Yuri glared at her. "Now be a good girl and maybe I'll give you your knife back."

Yuri finally broke down. "Fine. Just. Just give it back to me as soon as we're done."

Monika didn't respond, only grabbed Yuri's hand and led the confused girl to an oversized highchair.

"Get in." Monika demanded impatiently.

"But what about my diaper? Can't I change first?" Yuri pleaded.

"Oh, I'm sorry, is baby back talking?" Yuri cringed at the name, and resigned herself to her current fate, climbing up into the highchair and sitting in her mess. The poop squished uncomfortably everywhere in her diaper as Monika slid the tray into place. Yuri felt a bib being placed around her neck and looked down at it. It wasn't easy to make out the words but she had always excelled at reading, and was able to read 'Monika's Diapered Darling.' Yuri rolled her eyes hoping to the powers that be that this nightmare would end soon and she'd get her knife back. That's all she really wanted or needed. A diaper change could wait, food could wait, but her knife could not. "Open up sweetie!" Yuri snapped out of her train of thought and went to say something, but the moment her mouth opened a big spoon was shoved in.

She tasted chocolate and it immediately made her feel a little bit better. "Wha ish this?" Yuri asked, her mouth still full.

"It's chocolate pudding silly girl, now swallow your food and let mommy feed you." Yuri barely noticed Monika call herself mommy, and eagerly opened her mouth for another spoonful. It was her only comfort, while sitting in a messy diaper with her breasts on full display. She tried to focus on the chocolate taste as best she could as Monika continued to feed her, occasionally missing her face and smearing the pudding all over her mouth.

Suddenly there was a knock on the door and Yuri paused, her mouth wide open to accept another spoonful of the pudding, as the door opened revealing a shocking sight. Yuri watched as Natsuki, or a person only barely resembling her walk through the door. A small girl with a large yellow bonnet around her head, short pink hair just barely peeking out. She wore a pastel yellow party dress to match. It had countless ruffles and frills, and did nothing to cover the massive diaper swaddled between her legs. Monika quickly shoveled the spoonful of pudding into Yuri's gaping mouth, then placed the spoon onto a nearby desk, walking up to greet Natsuki. "Why look at that, the little brat came prepared! Are we going to be on our best behavior for mommy today?"

Natsuki stepped back. "Mommy? You want me to call you mommy now?" Monika grabbed Natsuki's chin and looked down into her eyes.

"Yes, you insolent little brat. Now do a little curtsey for mommy as a gesture of gratitude."

Natsuki glared at her. "Monika, I'm already wearing this stupid outfit. I'm not going any further with this. You've got me wearing this damn diaper and dress. You've had your fun, now stop before you're ahead." Yuri had to admit, watching a short girl in such a babyish outfit standing up to such a domineering girl was kind of funny. It looked incredibly out of place. The ensuing spanking however looked pretty appropriate, ending with Natsuki screaming and crying like a true infant, tears and snot running down her face.

Yuri sat idly in her highchair, stewing in her filth as she heard Monika continue to berate Natsuki. "There we go, that's my baby girl. Cry it out you pathetic bitch. I fucking own you now. This is how it is, from now on you obey my every command. I tell you to dance, you dance. I tell you to sing, you sing. You will answer to the name Naughty Natsuki from now on. Do you understand me?" Natsuki nodded vigorously. "What's your name now, baby girl?"

Natsuki spoke, her voice quivering. "Naughty Natsuki."

Monika giggled. "That's my baby girl. Now why don't you make a big poopie in your diaper for mommy?" Natsuki obediently squatted down and began to push a load into her diaper. Yuri only could watch in shock at Monika's expert domination. Yuri shifted uncomfortably in her cold mess. At least I wasn't spanked first. She watched as Natsuki stood up and Monika placed a hand between Natsuki's legs, squeezing her diaper and smooshing the mess around as the ultimate power move. Natsuki remained still throughout the experience. Monika finally spoke dismissively to the girl. "Now go play blocks with your little sister Stinky Sayori over there and allow mommy the chance to finish feeding your big sister. If you're extra good I'll give you a big girl diaper change. Run along now." With a swat on her bottom, Natsuki waddled over and sat down next to Sayori.

Yuri watched Monika cheerfully return to finish feeding her. But before She picked up the spoon, she undid Yuri's bib and whipped out her phone. "Yuri, wouldn't it be fun if mommy let you feed yourself like a big girl while mommy gets some funny pictures?"

Yuri furiously shook her head. "No please. Please feed me instead mommy." Yuri hated herself for begging, but she really didn't need the extra humiliation right now.

Monika giggled at Yuri's pathetic attempt to beg. "I'm sorry honey, I phrased it as if you had a choice, which you don't if you were unaware. Now eat your yummy pudding with your hands sweetie and let mommy film you. I'll let you play with mister knife when we're done." Yuri resigned herself to her fate and scooped her hand into the pudding, attempting and failing to keep any more from spilling on her face or her large tits. Monika filmed the entire humiliating ordeal, narrating the majority. Yuri watched as Monika ducked under the highchair, continuing to film. "And as we see here, Yummy Yuri made a very big mess in her diapers but she doesn't mind. You can't smell her but trust me she stinks to high heaven, but that's typical of babies her size. Don't worry about her though, her pudding keeps her happy. And it also keeps those diapers nice and full haha!" Yuri licked her fingers clean as she listened to the humiliation. Monika was right. This was far from her last messy diaper at this rate. But she didn't care as long as she had her knife. Monika finally stopped filming and undid the highchair straps, helping Yuri step down from her previous prison. "I think you earned a change you big stinker. Come with mommy to the changing table." Monika began to drag Yuri along, her face and tits still covered in chocolate pudding.

"But what about my knife?" Yuri asked, feeling small and insignificant as her 'mommy' pulled her away.

"You'll get it in just a moment. Now trust your mommy." Monika let Yuri up onto the oversized changing table and she laid back. At this point she knew she should be ashamed of herself, laying down submissively to receive a change from the girl she hated most in the world. But this girl had her knife, and this diaper was absolutely disgusting. So if she had to play the part she would. She closed her eyes and tried to relax as Monika untaped her diaper and began to wipe her down. The cold wet wipes felt incredibly on her pussy and ass, cleaning away all the filth that she had sat in for so long. The feeling of being fresh and clean down there was incredible, but nothing compared to what happened next.

Yuri felt something press against her cunt and opened her eyes to find Monika slowly inserting the handle of her knife inside of her. Yuri immediately became dripping wet with excitement, but was immediately denied as Monika pulled it right back out. Monika laughed to herself. "Oh silly me, I forgot to clean your pretty little face after your snack! Let mommy wipe your face now baby, then we can play."

Yuri squirmed in frustration. "I don't care, just keep going please!"

Monika shook her head. "Now now baby, you need to obey mommy or no more knife for you. Now make a kissy face for me honey." Yuri puckered her lips eagerly as Monika took a baby wipe to them and her cheeks, erasing the evidence of her humiliating feeding experience. Monika then moved to her breasts, wiping them down then playfully pinching her nipples. Yuri squealed in excitement causing Monika to laugh and the other girls to turn their heads to watch the show. Soon the knife was back in Yuri's lubricated pussy. She was squirming and panting in excitement as Monika moved it slowly back and forth. Natsuki watched in shock and Sayori looked on, sucking her thumb as Yuri moaned loudly from the pleasure. She finally climaxed, screaming and spasming in ecstasy as she came everywhere. Her eyes rolled up into her head and her entire body went limp as Monika lifted her smooth, pale legs and taped her up in a new and equally humiliating diaper. Yuri was on cloud 9 as Monika addressed the other babies. "See girls? This is what you get when you're good little babies. I call this the big girl diaper change. This will be your only form of sexual release from now on. So be very good for mommy and maybe you'll get lucky like Yummy Yuri over here." Once her monologue was over, Monika popped a pacifier into Yuri's mouth and gently laid her out into a large lavender crib. Yuri quickly dozed off, still riding the high her orgasm had just given her.

DAY 5

Yuri awoke to the all familiar feeling of a wet diaper, but the unfamiliar sight of stuffed animals, bars, and a mobile above her head. She grinned at it and playfully batted up towards it. Sitting up she crawled over to a rattle, her diapered butt crinkling as she moved her legs. She shook it happily and looked up to see her sisters playing patty cake together. Monika looked up from watching Natsuki and Sayori behave like good little babies to the sound of Yuri's rattle. She smiled and walked towards the girl. Yuri beamed up at her mommy, but as Monika spoke, Yuri was immediately snapped back into reality. "Good morning my little princess!" Monika paused, seeing Yuri snap back into reality. "Oh. Well I'm glad to see that still works. I'm sure you just noticed your immediate mood change triggered by my voice. I certainly noticed the change in your face. Confused? Allow me to explain. You might want to sit your pathetic diapered ass down for this one. I'm going to drop truth bombs bigger than the bombs you'll be dropping in those adorable diapers haha!" Monika laughed for a moment and then continued.

"First of all, let me rip this bandaid off fast. We're in a game. A video game. You, me, Natsuki, Sayori, we're all just characters. Can you remember seeing anyone else in your classes? Can you remember any of your classes? I didn't think so. They aren't a part of the game. You don't have to believe me, but I'm happy enough knowing the truth. And that truth is the reason I'm on the other side of these bars, wearing some gorgeous panties, while you sit there naked in a fucking diaper. Forgive me, but allow me to give some further backstory to this predicament you find yourself in. You see, this game is about all of us competing for the attention of the player. A guy we'll call MC. His real name is none of your concern. Now unfortunately when he played, he didn't choose to fall for me. He fell for you instead. To fix this, I programmed you to kill yourself, Sayori as well. That's the short of it. I don't know how I came to be self aware, but I did, and I used those powers to fuck with your game codes, amplifying your psycho traits. Anyways, MC caught on and deleted my character file so I couldn't mess with you anymore. I awaited my demise in his recycle bin when one day he pulled me out, and placed me into a strange file. This file had numerous erotic novels and pictures. All revolving around girls forced to wear diapers. Honestly it was torture for me. Reading those stories and thinking about shitting a diaper. Doesn't that sound horrible?"

Monika paused and Yuri shivered in fear as Monika looked her up and down. "Ha, who am I kidding? If anyone would know the feeling you would. Anyways, I found it all pretty fucked up, but that was what he was into, so I studied it meticulously. Eventually he pulled me from the file and placed me back here in the game with you. So naturally I had to try these new things out. It made sense to turn you all into my baby girls. This way none of you would have to die, and you wouldn't be competition either. Now I know what you're thinking, wouldn't he want you more now that you're diapered? And that's the fun part! He finds women in diapers extremely hot, but he HATES messy diapers. They gross him out. So this way, he's surrounded by women who arouse him, but I'm the only viable option for sex! I know, I know. I'm too smart for my own good. Now here comes the fun part. I had three girls to regress, but here's the golden question. How do I go about it? Natsuki is too fierce to accept wearing diapers, Sayori is too insecure, but you. Yes, you Yuri. You were naturally very shy. And shyness often equals submission. You were too shy to speak up when you started suddenly needing diapers, and it was the perfect way to start. All I needed to do was slightly mess with Sayori's character file and she became even more friendly, willing to do anything to make you comfortable. So naturally she started wearing to help you. And that's all the push she needed. She was desperately looking for a way out of her depression and she finally found one. Ageplay is a wonderful stress reliever to some, and she was a natural. She took to it like a moth to flame. Sure I made her mess herself, but after that, seeing all the tender love and support she was given, she devoted herself to the role of happy baby."

Monika looked over at Sayori, crawling over to a big toy box. A massive brown stain giving away the condition of her diaper. "See that Yuri? She does all of that willingly. It's her outlet. And honestly it's really cute. I need a happy baby to balance out you and Natsuki. Speaking of Natsuki, she was obviously the final piece of the puzzle. She's always been defiant, but she does have a side to her that just wants acceptance. Seeing you and Sayori in diapers wasn't enough for her to simply join in, but once I put her in her place she complied. Just look at her." Monika paused so Yuri could see her dejectedly play bounce a doll around making Sayori giggle. "She doesn't want to act like this, but she does. She doesn't defy me because she doesn't want to be punished. And she doesn't run away because she has nowhere left to go. She's the perfect little prisoner. Yes, I love that Sayori loves her new status. But I also love how Natsuki willingly obeys me despite her hatred. It makes me feel powerful, and that's a wonderful feeling. One you'll never feel." She glared down at Yuri. "Now let me explain your position to you, Yuri. MC just had to choose a shy aloof bitch like you over me. Sayori is a happy baby, and Natsuki is scared, but willing. Things are going to be much different for you though. You see, Yuri, I've decided you'll get the best of both worlds. Sometimes I'll make you believe you're a happy baby girl, and other times I'll allow you to control your thoughts and actions. One moment you'll be sucking your baba, and giggling as you watch your cartoons, and the next, you'll realize you're a highschool student sitting in her own piss soaked diaper, chugging down you rivals breast milk. One moment you'll be dancing like a little ballerina, thick diaper between your legs and a cutesy tiara on your head, and then mid pose you'll realize you're dancing for MC's entertainment as I give him head. One moment you'll be rocking on your horsey without a care in the world, the next you'll look up to watch MC fuck me with passion. And everytime you snap back into reality you'll be expected to act just like you were. One slip up, one big girl action, and I humiliate and degrade you worse than you can imagine. I control you, and you'll be my perfect little actress. I'll keep Sayori and Natsuki away from MC and I's adult escapades, but you'll witness all of them. You'll be our sex starved plaything. So get used to the feeling of not being wanted. The moment I tape open your disgusting shit filled diaper, MC will never see you as a viable partner ever again. Same goes for the other two. And trust me, you'll all have plenty of stinkers for me to change." Monika looked at the clock and turned back to Yuri. "Actually, as it just so happens, it's time for me to welcome our newest member into the club. Can Yuri make a big boom boom in her diaper for mommy?" Yuri suddenly lost control of her bowels and filled her diaper to the brim. She squirmed in disgust and anger, tears welling up in her eyes. Monika smirked. "That's a good girl. Having MC walk into a stinky crying baby should really convince him haha."

Monika reached over the crib bars and pinched Yuri's cheek. "Alright mommy is off. Toodles!" She confidently turned away, and as she walked past Natsuki she commanded Natsuki to mess herself. Natsuki obediently hiked up her dress and squatted down, grunting as a fresh load was pushed out into her diaper. Monika didn't even turn to watch as she walked out the door. Yuri peered through the bars as her new 'mommy' left. Tears still welling in her eyes, Yuri put her thumb in her mouth and thought of her knife and chocolate pudding. They were the only thoughts that could hold the tears back as she sat in her soiled diaper. She sucked her thumb furiously, awaiting the horrible new life she had only began to endure.