Poor Billy 4

By SubstituteWriter
someassembly1964a@gmail.com


Copyright 2026 by SubstituteWriter, all rights reserved

[2,077 words]

* * * * *
This story is intended for adults only. It contains depictions of forced nudity, spanking, and sexual activity of preteen and young teen children for the purpose of punishment. None of the behaviors in this story should be attempted in real life, as that would be harmful and/or illegal. If you are not of legal age in your community to read or view such material, please leave now. 

* * * * *


Poor Billy Makes Makai Happy

(Sixteen-year-old Billy, who has already suffered through several humiliations at the hands of his 12-year-old sister Sally and her friends, Peggy, 13, and Makai, who is turning 13. Poor Billy will headline the entertainment at Makai’s birthday party.)



Poor Billy knew it was going to happen. It just came quicker than he expected. Makai invited him, as a ‘very special guest’ to her 13th birthday party.

Having been a birthday present for Peggy at her party, Billy knew all too well what was probably going to happen. Besides, he had a little crush on Makai, the eldest daughter of parents born in Japan. Makai was born in the USA but has visited her parents’ native country.

Sally, despite her age, exerted control over Billy and was adept at getting him to do anything. Billy could never say no.

The invitation brought memories of his previous adventures with the girls. First losing a bet in Crazy Eights because he was arrogant and held back a key card, leading to his defeat.

Then there was the time Billy was supposed to babysit his younger sister, and, well, things got a little messy and Sally had to take over.

And then, just over a month ago, he allowed Sally to turn him into a present for Peggy’s birthday party. He was a hit with all the attendees and he even got a bonus on his way home.

Billy did not understand the part of the invitation that said the day would also include an ‘educational element.’ He thought there might be math problems to solve or something like that, with the winners getting a prize. Poor Billy didn’t realize he would be the prize.

Makai’s mother, as it turned out, was a strong believer in empowering all females to take the lead in their relationships and constantly reminded Makai that she could turn any situation into a learning experience.

Billy, if truth be told, was not as aware of how things operated in the world and certainly underestimated the intelligence of his sister and friends. He did know that, somehow, he would be naked in front of Makai and almost naked at other times during the proceedings. Besides, his sister and her two close friends had already seen him without clothes. He was even a little excited that Makai would be allowed ‘special privileges.’

On the morning of the party, Sally approached Billy with a request from both Makai and her mother that he wear an adult diaper to the party so that he would have extra protection for his genitals and there would be no accidents to ruin the party.

Billy tried to argue that he didn’t want to look like a baby but Sally soothed things over by explaining he would be wearing it under his clothes and no one would even notice. Was he really going to ruin the party for Makai?

He reluctantly agreed and felt a little disappointed that he would not be nude at any point. On the other hand, he thought he could have a lot more fun without having to worry about ‘losing’ anything.

Sally helped wrap and secure the diaper around Billy’s privates and then handed him his shirt and a pair of bulky shorts, which helped hide the adult-sized diaper.

Sally also handed him a box, carefully decorated with balloon-themed gift wrap and topped off with pink ribbons. His sister would not reveal what was inside, saying only it would be the best present ever and that Makai would love it. As for the card, Sally asked that he write out a note that she would dictate. Here’s what he wrote:

“Dear Makai, as a grown-up lady now, I wish you the best on your 13th birthday. To help make this the best party ever, please use what is inside as you see fit. Happy 13th Birthday, sincerely Billy.”

Billy and Sally were the last to arrive at the Makai residence and joined Peggy, Makai, and two other young girls who turned out to be Makai’s cousins: 14-year-old Hina and her sister Sora, who was 11.

Makai’s mom was also there and guided all of them into the dining area, where there was a massive amount of food waiting to be devoured, much more than the seven of them could finish.

At the first station, carrot sticks, celery and broccoli were ready to be dipped into three different sauces. On the same table were loads of Onigiri, triangular rice snacks wrapped in seaweed and stuffed with tuna, mayo and/or salted salmon.

A second table featured globs of macaroni-and-cheese in catering dish kept warm by special candles. On the same table were a variety of sushi, placed on a large dish. Next to that was a heating dish full of Chicken Karaage.

On the third table, there was a make-your-win taco bar sharing space with Japanese Curry, which one could scoop up and pour over rice, potatoes and/or carrots.

The fourth table was full of different kinds of cupcakes, Mochi (rice with flavored ice cream and a special sauce), and a three-tier cake, each level a different flavor: chocolate, red velvet and strawberry.

For drinks, sodas, smoothies, matcha and water were all available.

Our sitting arrangement was a short table where they were to sit cross-legged. That proved to be a challenge for Peggy, Sally and Billy but no problem for Makai, Hina and Sora. Makai’s mom told us to dig in and disappeared for the time being.

Billy went first, piling his plate with samples of every kind of food, drink and desserts. He particularly paid attention to the taco bar. He came back to the short table and started shoveling food and drink into his mouth. The six girls, meanwhile, took small portions of everything.

As the girls finished, each would travel to the tables and return with another bottle of water or another soda and hand it to Billy, who gulped them down with vigor. It didn’t take long for Billy to start feeling a need to use the bathroom.

Sally, Peggy and Makai each took turns making sure Billy was not able to rise from the table. When it became an emergency, Billy was able to break free and dashed for the only bathroom in the house.

There he found a line, Hina and Sora waiting for Makai’s mom to finish up. What Billy did not know was that Makai’s mom was fully clothed, sitting on the closed toilet seat reading a fashion magazine.

Billy kept jumping up and down trying to hold it in. Hina and Sora were giggling into their mouths when they weren’t asking Billy if he felt okay. Billy tried squeezing his legs together (he didn’t want to grab himself in front of the girls) but he could hold out only for so long. He stopped fidgeting when he felt his diaper filling up with warm liquid.

He had been drinking so much, the stream of urine stretched his diaper, making it obvious what he was wearing under his shorts.

“Something smells stinky,” Sora said, looking up and down the hallway.

“Hey Sora, look at this,” said Hina and directed her sister’s gaze to the growing shape under Billy’s shorts.

Sora’s eyes went wide and she looked up at Billy, who immediately threw his hands over his face hoping to put out the fire that burned through his cheeks. He was peeing in his diaper. Here he was, a 16-year-old boy, peeing in front of an 11-year-old girl who was staring at him.

Hina immediately knocked on the bathroom door, alerting Makai’s mom to the accident. Sally, Peggy and Makai came running over when they heard Hina’s frantic pounding and saw Billy standing there, his hands over his face and the diaper bulging out.

Makai was ecstatic. “Oh, thank you so much Billy,” she said. “I knew you’d come through for me.” Billy’s face grew even hotter.

Makai’s mom arrived with Hina and asked for room to get to Billy. She hugged him as a way to comfort him and then led him into another room. The girls followed. Billy saw the room had a portable changing table, with five chairs set up in a half-circle facing the table. He also saw the box he gave to Makai as a present.

Makai’s mom asked the girls to sit down and told them that every disaster can be turned into a lesson. She announced that Makai would change Billy’s diaper in front of them and that she would describe what was happening so the girls could learn from the experience.

A deeply embarrassed Billy felt his face go crimson and then burgundy. How much embarrassment could a 16-year-old boy take? He cringed as his body seemed to have acquired a sunburn without him being outside.

“First, get him up on the table,” said Makai’s mom, gesturing to her daughter to help. They laid him on his back, pulled his shirt up and his shorts down and completely off, sending fresh waves of heated embarrassment through Billy.

“Now that you see he’s ready to be changed, Makai will remove the dirty diaper by raising Billy’s legs up and sliding it out from underneath his body,” Mom said.

Makai began by unfastening the used diaper. She slowly guided Billy’s legs up so there was enough room to slide the diaper from under his butt. After removing it, she tossed it aside and it landed with a plop.

“Wow, there sure was a lot of pee-pee in there,” Sora said, causing everyone else to chuckle. Not Billy though; he was being treated like a baby and a 13-year-old was in charge of his changing and he felt shamed as a result.

“The next part is cleaning up the mess from his pee hole to his butt hole,” Mom said. “Makai will use special wipes to make sure his skin is clean and sanitized. Then she’ll use baby powder to help him avoid a rash. Then she’ll slip an even bigger diaper on him and he’ll be ready to play again.”

Makai first grabbed his penis, which immediately hardened in her grasp. She pulled it back to clean the genital area and all the way to his butt. Then, she forced his cock down, laying it on the area she had just cleaned. Makai wiped down that area, making sure to get the sides and crevices as well. She let go of his cock, allowing it to spring upward.

“That’s funny, do it again Makai,” Sora said, getting another round of laughter from the other girls.

Mom whispered something in Makai’s ear and produced a rattle for Billy to hold. Every time he was touched, the rattle made a noise.

“I forgot one thing,” Makai said, picking up another wipe and sliding it up and down Billy’s shaft, causing the rattle to produce extra loud noise. Makai continued rubbing the wipe up and down, causing Billy to start grunting.

When she stopped, Billy moaned.

“Why did he do that?” asked Sora. The girls giggled in response.

Makai then produced an extra-large fluffy diaper to replace the old one. She fastened it tightly around Billy’s hips, making sure it was leak-proof.

He was then helped down, flopping on his diaper, looking just like a little baby, rattle and all.

Billy had to remain dressed in just a shirt and diapers while his shorts were cleaned and dried. Meanwhile, the five girls played party games while he sat and watched.

Sometime later, Sora walked up to Billy and asked if she could burp him. She didn’t wait for an answer. It was quite a sight watching her beating on his back. It worked though.

After his belching stopped, she rubbed Billy’s hair and called him a good, little baby. She also asked him to drop the rattle and suck his thumb like a good baby. His humiliation gone rampant, Billy did just that and Sora hugged him.

When he had his shorts back on, he stood up and posed with the girls for a group photo. Afterward, as the party was breaking up, Sora again came by to hug Billy and called him the best baby ever.

Hina, Peggy and even Sally also hugged him.

Finally, Makai stood before him. “You gave me the best birthday ever. This is the happiest I’ve ever felt.”

Then, she leaned over and kissed him on the forehead.

End






   
   
(End of File)