One bright, sunny day
"Okay. Who's ready for our 'all girls shopping trip'?" Ryoko asked.
"Yeah!" Kokoro, Gou, and Toka all cheered.
"Uh..." Haru groaned.
"Haru-chan, stop making that 'This is such a pain in the ass' face!" Ryouko ordered.
"But it is a pain in the ass." Haru retorted.
"Come on, Onee-chan." Kokoro said. "You need some new clothes."
"I'm fine with what I have." Haru remarked.
"Haru-senpai doesn't like shopping very much." Gou stated the obvious. "But only for swimsuits, though." She added.
"She's such a tomboy." Toka commented, giggling.
"Haru-chan..." Ryoko started to say. "If you agree to come shopping with us, you can have all the mackerel you want once we're through." She offered.
Haru perked up when she heard this. She thought about Ryouko's offer. "Alright, I'll go..." She finally said with some hesitation.
"Alright!" Ryouko cheered. "Let's start the shopping!" She stated, grabbing Haru's wrists and dragging her with her, the other girls following.
...
Sometime later
Haru, Kokoro, Gou, Toka, and Ryoko were all standing in front of the store the oldest of the group lead them to, a lingerie store.
"Why are we at a lingerie store?" Haru asked.
"Do we really need to go in here?" Gou questioned.
"I figured we could buy some new underwear for Haru-chan while we're out." Ryoko told them. "And maybe get something for ourselves."
"I'm not even old enough to wear anything from here." Kokoro pointed out.
"I don't need anything from here." Haru informed in monotone. "I have my swimsuit."
"You can't just wear a swimsuit in place of underwear, Haru-chan." Ryouko retorted.
"You've just never tried it." Haru shot back.
"Why are you so stubborn?" Ryoko asked, sighing.
"What does Haru-chan mean she says she only needs her swimsuit?" Toka questioned.
"Oh, Onee-chan says her swimsuit kinda has a built-in bra." Kokoro explained.
"I guess that makes some sense..." Was all Gou said.
"Haru-chan." Ryouko spoke up, her expression serious. "If you agree to buy at least one set of underwear, not only will you get as much mackerel as you want, I will also buy you the cutest stuff animal I can find."
Haru froze when she heard this. "Really?" She asked, her eyes taking on an adoring look, despite her face being emotionless.
"Yes, I swear on the Matsuoka family name." Ryoko vowed, placing a hand over her heart.
"Isn't that taking it a bit far?" Kokoro, Gou, and Toka asked in unison.
"I'll do it." Haru said immediately.
"She agreed to it." The other three stated the obvious.
"Fantastic!" Ryouko cheered happily. "Well then, let's go inside." She said as she herded the girls into the store.
...
Inside the lingerie store
"Oh, found one in my size." Ryoko thought aloud as she picked up a dark purple bra from a rack.
"What size is Ryoko-san?" Toka asked.
"My size is F." Ryouko replied. "What size are you, Toka-chan?" She questioned.
"Ah, I'm an E..." Toka answered in a soft tone of voice, blushing a light red as she smiled sheepishly.
"You don't have to be so embarrassed." Ryoko told her. "You should be proud to have big breasts."
"M-Maybe..." Was all Toka said, the blush on her face darkening a bit as her glasses fogged up from the steam that was coming from her face.
"Ne, Kou-onee-chan..." Kokoro started to say as she turned to Gou. "What size are you?" She asked.
Gou flinched form the questioned. "Oh, uh..." She trailed off, lowering her head. She mumbled something.
"What was that?" Kokoro questioned, not hearing her.
"I'm a B..." Gou repeated what she had mumbled, her face slightly red.
"Don't look so ashamed." Kokoro told her. "I hear that small bras are cuter."
"That doesn't make me feel better!" Gou exclaimed.
"Haru-chan, try this one on." Ryoko said to Haru, handing her a red and black bra.
"Okay..." Haru replied.
"Do you need help putting it on?" Ryouko asked.
"I've worn a bra before." Haru retorted. "Don't treat me like I'm a child." She said, pouting.
'Aw~' Everyone mentally gushed in unison. 'She's so cute...'
...
Later
"Geez..." Haru mumbled to herself as she walked into one of the changing booths, pulling the curtain closed. "Such a pain in the ass."
Haru grabbed the ends of her shirt and lifted it over her head. After setting it aside, she grabbed the straps of her swimsuit and pulled it down to her waist. Then she put the bra straps over her shoulders, leaning forward a bit after that. Haru grunted a few times as she tugged on the hooks. After a few more tugs, she was able to finally clasp them together. Next, Haru reached inside the bra and moved her breasts to fill up the cup.
"Haru-chan, are you done?" Ryoko asked from outside the changing booth.
"Yes." Haru replied in monotone.
"How does it feel? Does it fit?" Kokoro questioned.
"Honestly, it's feels really tight." Haru told her.
'But that's the biggest size they have here.' Ryouko thought to herself.
...
Later, in the evening
'In the end, we couldn't find any bras that were even close to fitting her in any shops.' Ryoko thought, riding home in a train with the other girls.
'Does this means she's bigger than 102?' Toka asked herself mentally.
'I feel even more inferior to her now.' Gou thought, her head bowed down in depression.
'This must be the power of mackerel.' Kokoro mentally remarked.
'So cute...' Haru thought to herself, clutching the cute stuffed animal, which Ryouko had bought her, close to her chest.
...
Meanwhile
From : Kokoro
Subject :
Apparently, bras are not for Onee-chan.
"The hell is this?" Rin asked himself after reading the text message Kokoro had just sent him.