Today was a big exciting sports day! ...For the adults. Many families from Yosh's neighborhood gathered at his home to watch the big game. The adults were all downstairs cheering anxiously for the ads to come on, meanwhile Yosh and the other kids on his street were upstairs playing games to pass the time.

"Hummm..." Sighed Yosh, he was a bit shy to play with the other kids, in his own home! Winry had one of the other girls to play with, but Yosh was stuck feeling like there was nothing to do in his own home. Until...

"Ohh..." a girl moaned at the door of the playroom. This round little yellow birdy had on a pair of diapers, a pink shirt, and was bouncing up and down anxiously!

"Are you okay?" Yosh couldn't help but ask - perhaps in part to get himself to stop watching her fluffy white diaper dance around in front of him.

The penguin turned around and nodded, "Umm... ummm!"

"Do you need to go out?" Yosh asked, reaching the door handle for the short little bird.

He twisted the nob for the penguin girl to rush out. She ran down the hall, straight to the bathroom door, which was locked, with a light on showing from under the door.

"Nooooo...." she cooed, as she dropped to her knees, "I can't..."

Yosh didn't know what else to do but watch.

"What's going on out there? Did one of the teams score?" The busy adult's voice echoed from inside the restroom. This scared off the penguin girl who did not want to be seen. She looked up at Yosh helplessly.

"I... I'm going to need a change..." She held onto her diapers shyly and wobbled back and forth.

Yosh looked down, not sure he should be the one to do that! "Do you want me to go downstairs and get your mom? Or..."

The birdy shook her head quickly, "Nooo! My mom's not here. Can..." she whispered, "Can you help me?"

Yosh wasn't too sure! He'd usually leave that up to parents, but he also knew this penguin was super cute, and seeing her in her diaper and helping her into a new one would be so fun for him... Not to mention, he couldn't just let a guest stay unhappy and uncomfortable!

"Okay, we'll be quick!" Yosh whispered as he took her wing and rushed into Winry's room. 

Yosh nervously laid the penguin girl on the blanket, he gathered all the items he needed for a speedy diaper change.

"Okay, here we go..." Yosh nodded as he untaped the sides of her diaper, it sort of hitting him how he'd be undressing this cute girl all by himself!

"R-Right now?" the penguin girl blushed, squirming her legs together, causing the diaper to unfurl slowly.

As if in slow motion, Yosh and the girl looked at each other as her diaper uncurled from her belly, between her legs, and onto the floor between them. They both started to look downward. She was completely bottomless, naked below her shirt, right in front of a boy. Yosh gulped, her could see, this penguin was a girl. All the proof was right in front of his beak!

..But he noticed, her diaper was clean!

He looked up at her, confused, "I thought you needed a change?"

She covered her beak and blushed, "I said I was going to need one... I haven't done anything yet!"

Yosh couldn't believe it. Without any diapering or cleaning to do, he basically just brought a penguin in his sister's room and stripped her! And he was still staring at her bare little feather yellow privates! It was rather cute but Yosh knew it was rude to stare.

Just then, the doorbell rang! Yosh suddenly felt the urge to wrap things up, but the girl was so surprised, she gasped and started to wet herself right in front of him. Yosh held her diaper, so confused in the moment, he didn't know what to do as he held the tape of her cloth and watched the pee escape her lips. He felt so naughty just watching a random girl pee half-nude right there!

"Oh gosh! I'm so sorry!" She blushed, not in control of her body.

"No no! It's okay, I've got this!" Yosh panicked. Well, he had to wait until she was done. He politely turned his head as she started to slow down.

"I think that's all..." the bashful bird nodded. Yosh took off her diaper, and got a wet cloth to clean her. They both tried to stay silent, nervous as they heard footsteps coming up the stairs! 

Yosh quickly grabbed the baby powder, and puffed it softly against her penguin vulva - her featherly bits lightly dusted in white.

Yosh was ready to tape her back up when suddenly the bedroom door opened!

"Hey Yosh! Playing with your sister's dolls agai-" a familiar orange dino named Nishi walked in. "Woah, Yosh!"

Yosh panicked, his face turned red. The exposed penguin girl gasped, raising her legs up in the air, but not necessarily covering her nudity between them.

"What are you doing undressing that old lady?" Nishi laughed, "Macaroni Penguin is a little old for diapers, isn't she?" Or well, a moment later he remembered hearing how older animals usually needed to wear diapers after a certain age.

"Huh? Old lady?" Yosh turned his head, the penguin was as short as he was, and so pudgy and round and cute. "How old are you?"

The penguin girl bushed, reached into her shirt to put on her glasses, and hopped onto her feet. (Still not wearing a diaper, totally naked below!)

"Um, well, I really aught to be going, shall I, dearies?" Her voice seemed a bit lower now - being so nervous and having to tinkle can really change the pitch of your voice! Not to mention, being so short and in diapers, unable to reach doorhandles, was really embarrassing for an old senior like Macaroni. She thought it'd be best if Yosh believed she was younger, even if his friend Nishi knew better.

The two stared as the bottomless lady dashed out of the room - a small trail of baby powder following her - her vulva was still white and covered in it as she fled!

"...Or maybe that was Macaroni's daughter..." Nishi thought out loud. "Not to be agist, but I don't think she could run so fast at an old age..."

Yosh felt completely lost. He saw a lot of fun things, all with a cute girly bird, but was she someone his age? Or perhaps a much older lady? He thought he might even have a crush on this cute little friend of his, but, these odd feelings would have to sort themselves out some day when he'd meet Macaroni again!