Sister's Sleepover Suprise Sissification

[Spankedbuttwannabe]

(This is a transfer from Diapered anime. As a result it will have a mix of both spanking and diapers, so if your not into that, be warned)

Post 1: Tamia was an ordinary boy who had a sister and a family. He was now 13, and his parents thought had since he was now technically a teenager he could manage to watch his 8 year old sister and her friends while they had a slumber party. Tamia originally protested this, but they bribed him by offering him a hundred dollars for the weekend. Sighing, he agreed, and his parents left to go to some business conference leaving him in "charge". It was now 8 at night on Friday, and Tamia was up in his room playing a video game. As far as he knew, his sister and her friends were downstairs playing something. He really didn't care as long as they didn't bother him.

Tamia was rather short for his age, being only 5 feet tall. His mom claimed that he was just due for a growth spurt, Tamia just blamed genetics. He had black hair, and brown eyes. At the moment, he was wearing a thin black sleeping shirt, and a pair of pajama pants. Under them however was something not so normal. You see, Tamia had gotten into a car accident when he was four that result in his bottom half being pinned under a car. Thankfully it didn't hurt his legs, or anything involving his reproductive system, but it did permeantly impact his bladder and his bowels. He no longer had any sensitivity there, and as a result, constantly wears a thin pull-up under his pants. His family knew about it, but Tamia had made them all promise not to tell anyone.


Post 2: Downstairs four girls were sitting in a circle, chatting and giggling, as one would expect from a sleepower at their age. Zoe, the one who invited them, was Tamia's eight (almost nine, as she always insisted) yeas old sister; she was not much shorter then her brother, a slim girl in a yellow pyjamas, with auburn hair in two pigtails by sides of her head and the same brown eyes as Tamie had.

There was also Lidia, Zoe's peer and classmate, an athletic blonde girl, the captain of elementary school soccer team, a natural leader and a bit of troublamker. Her light hair reached Lidia's shoulders, her big eyes were navy-blue and she wore crimson pyjamas with rocket pattern.

Mandy, Zoe's neighbour, turned nine a few months ago. She was a chubby girl, but did't really look bad, mostly adorable with her round cheeks and really plump butt. She had a naturally slightly tanned skin, dark aeyes and black hair in two braids. Other girls thought she was a bit of bookworm, but she was not boring for sure. Mandy wore a long salad-green nightgown with ruffles.

And finally there was Allison. Already ten years old, she was very self-confident and even a bit arrogant thanks to her age. That's why she dressed like an "adult" for the sleepover - the tall girl (still completely flar-chested, but starting to achive womanly proportions) wore her pink panties and white camisole. She had short red hair, green eyes and lots of freckles on her pretty face and not only. She was a dancer - her mom hoped Allison will go to ballert while she prefered street dances...

For a hald an hour at this point Lidia was the center of attention. She visited her aunt last week and spent time with two of her nephews - one was about five years old, and the other was a newborn who hadn't even celebrate his very first birthday yet. None of the girls had younger brothers, so they were amazed and interested in the stories about Lidia's aunt taking care of her children in diferent ways, about how Lidia herself had a chnace to help... Of course, the stories about thw diaper change of the younger and bathing of the older one attracted special attention and caused especially a lot of giggling, since Lidia, with a very cunning smile, described her cousins' "little boy thingies"...

Zoe was a bit upset that at her sleepover all the attention wet to someone else, so at some point she couldn't conatin herself and suddenly saif: "Listen, girls! You know something about my big bro Tamia? He's still in diapers!" And after the first shocked sigh, she told her friends the whole story in whispers. The girls exchanged interested looks andcontinued to whisper, thinking something up...


Post 3: After being up in his room for an hour, Tamia noticed that it seemed to get too quiet downstairs. Something seemed to be up. He glanced at the clock, noticing that it was only 9. "Too early for them to be asleep," he thought to himself, before standing up. He paused the game he was playing, and fixed his pajama pants, before blushing as he realized that his pull-up was completely soaked. Part of the downside of having little sensation down there was that he had a hard time even knowing when he was wet. This made him sigh, and he reached in his pajama pants, pulling his pull-up up some, trying to make sure it was on. He had spares in his dresser, but he figured he could put off having to do it for a bit.

Stretching his arms, he decided to go downstairs. He made sure his pull-up was completely covered by his pants, and that there was no obvious bulge before heading down the stairs towards the living room and kitchen. Leaning his head against the living room door, he heard whispers, and got a puzzled look on his face. "Something had to be up. She better not have invited boys over. She's too young for that," He thought to himself before opening the door. "Hey Zo," He tended to shorten her name, calling her Zo instead of Zoe. "You all doing ok, it got quiet down here." He saw that the two were in a circle seemingly hiding something.

Post 4: "Oh no, bro, everything is going ju-u-ust fi-i-ine..." Zoe answered, stretching the words in a fake innocent manner which would made it clear for anyone older then eight, that something definetly was going on. She was still sitting on the floor along with Mandy, who at the moment was biting her lip. trying her best not to laugh. They were sitting very close to each other, obviously trying to hide something behind their backs.

Allison and Lidia, on other hand, were not aythere in sight. In fact they were standing in the shady corners of the room by sides from the door, so Tamia couldn't see them as he looked in the living room through the doorway. The girls tried to remain completely silent, hoping that the boy wouldn't notice them untill he'll enter the room and leave two most strong of the little plotters behind his back...

Post 5: Tamia it seems wasn't very convinced by her words, walking into the living room completely clueless. "Weren't there supposed to be 4 of you here? Where'd the other two girls go," He asked, a rather confused look on his face. He didn't know or suspect anything was going on. He had actually barely spoken to any of them today, more so just saying hello when they came in, and counting them, before going up to his room.

[Jinchu]

At this moments to giggling girls attacked him from behind. Alisson was almost as tall as Tamia, and Lidia was at least as strong as him, if not stronger, so they easily made him fall on the floor before the other two. Heaby Mandy quickly took a seat on boy's shoulders, pinning him to the ground, and the others, now gigglong aloud and blushing a bit, pulled his pyjama pants all the way down. the sight of Tamia's pull-ups caused a shocked sigh which turned into a burst of laughter immeditaly.

[Spankedbuttwannabe]

Tamia blinked his eyes as he heard the door shut behind him, and suddenly felt himself being pushed to the ground, crashing with a loud thump. Groaning, he felt 6 pairs of hand on him, holding him down and pinning him to the floor as he suddenly felt a breeze between his legs as his pull-up was exposed. If anything, the already soggy pull-up had gotten more soaked since he had left his room, and was now bulging out. It was almost to the point of leaking and that crash certainly didn't help matters. Groaning loudly, he tried to get up and tug his pants back up, but he couldn't move, the girls were simply as strong as him. Despite being three years old, Tamia never really went outside, and was very much a wimp.

"What, hey get off me," He shouted, his face extremely red now. He turned to his sister and said, "Get your friends off me. Why are doing this, how'd they know about my, my problem," He asked, suspecting something was up now. He tried to squirm his way out, but couldn't even move his arms. His face then went even redder as a loud fart came out of him, indicating that if he didn't get out of this pull-up into something with a lot more padding than they could easily have problems.

[Jinchu]

The fart cause another burst of giggling from the girls. "Zoe, you were right! I couldn't belive it!" Alisson mumbled through the laughter. "The guy free years older then me, in pull-ups! What a shame!" "It looks almost like the one my newborn cousine wears!" Lidia confirmed, patting the boy'd butt with one free hand. Mandy kust took her msrtphone and started to make pictures), and Alisson joined her in a second, making sure Tamia's face is in clear view on some of them.

"No, little brother, we are not getting off. We're gooing to play house for all weekend, and guess who will be our 'wttlle cutie baby?" Zoe answered with a mocking smile. It's not taht she hated Tamia, but the sibling rivalry is a strong feeling, and he always looked down at her, so... ir seemed only fair.

[Spankedbuttwannabe]

"What, don't touch me there. Hey, you better not show anyone those pictures," Tamia said, his face turning redder by the second. He then glanced at his sister and said, "What do you mean I'm your baby. I'm thirteen. I'm supposed to be in charge of you all. Not the other way around. Come on, let me go or I'll tell mom," He whined, trying to move his hand so he could reach his phone, before realizing his pants were at his ankles. He growled, and said, "At least let me go upstairs and get out of this dang soggy pull-up. Its gross, and I can feel something even nastier coming."

[Jinchu]

"Oh, we wouldn't show it... if you'll be a good obedient baby." Alisson chuckled, making another photo, before she reached and took Tamia's phone insted of him. In a second she hid it on top of the cupboard, thaere she barely reached on her tiptoes -the shorter boy would not reach it at all.

"Yes, Tania, no matter who was left in charge, if you don't want these photos to be seen by the whole school, you'd better not to make any fuzz now. Anyway, babies in pull ups cannot be in charge." Zoe answered in a cunning voice, and everyone giggled again. "As for the something nastier... Girl's let's help out baby to do number two!" And so she, Lidia anf Mandy started to tickle boy's bare feet and massage his tummy to make him loose control as fast as possibe, while grinning Alisson was filming all this...

[Spankedbuttwannabe]

"Get out of my pockets," Tamia shouted, feeling her reach in and yank out the phone. He then saw where she put it, and he growled, hating that he was so short. He then turned to his sister and his eyes grew wide. "Come on, no. Why sis," He said with a scowl, before instantly beginning to laugh as the tickling assault began on his sides. His face went red, and an embarrassed smile came over him as it seemed to only get worse and worse. "Stop," He said with a whimper ass yet another loud fart came out of him, except this one wasn't completely dry. "They aren't meant to hold in this kind of mess," He warned, before feeling it explode out of him. Thankfully it was mostly one continuous piece, but it still caused the underside of his pull-up to bulge out obscenely, as well as to get all over his backside.

[Jinchu]

The girls met it with a mixture of disgusted "EEEW!!" and laughter. Alisson made more photos, making sure the state of Tamia's pull-ups was clearly visible, and giggling Mandy lightly slapped boy's butt, squeezing the stinky mass even more over his buttocks.

"So? Are you going to be our baby for the whole weekend, obey us and do what we tell, or should we post these photos online right now and tag all your classmates?" Zoe asked in a childishly exagerrated omnious vooice. Despite her tone, it was clearly not a joke - in fact, allison already satrted to type something on her smartphone...

[Spankedbuttwannabe]

Tamia let out a nasty wince at the spank, feeling his own nasty mess being pushed around against his bottom. His face went green at this, and he shivered weakly. After a moment sniffling now, his face pale with anger and embarrassment, and he then let out a sigh. "Fine, I'll do it. I'll be your dumb baby for the weekend. But no more pictures, and I want to see those deleted," He threatened, having a feeling that it was fruitless. He had already fallen so far down the rabbit hole, there wasn't much further he could fall. He would soon just have to give up and submit to whatever these girls wanted from him. It couldn't be too bad right, they were just 9-year old girls.

[Jinchu]

"We will delite them at the emd of the weekend, if you will show yourself as an obedient little baby." Alisson chuckled, thought stoping the typing and closing th window. "And you are not in a position to demand anything, stinky butt." The girls giggled again. Mandy finally stood up from the boy's back. "Don't try to fight and break my phone. Firstly, you're rather a weakling for your age, and secondly - I've made file copies online just in case, so you wouldn't solve anything." Alisson warned Tamia as he was freed.

The girls surrounded him. "From noe on you should adress us as "mommies" and you will fllow the rules we'll thin... ahem, establish, and our orders too." Zoe explained with a cruel smile, looking kinda starnge on her little innocent face.