"Hajimeee!" Hiyoko called out to the boy as she walked out of the school, pulling Mahiru along with her as Hajime was about to leave. She ran until she reached the startled boy.

"Yeah?" He asked, noticing how Mahiru seemed to be very uncomfortable, her face red.

"We have a question for you!" Hiyoko said.

"W-we really don't need to ask him!" Mahiru pleaded.

"Well you didn't want to do it the other way, so this is the only way!" Hiyoko said as she looked at Mahiru.

"We don't need to know!"

"I want to!" Hiyoko exclaimed, and turned back to Hajime. "We have a question for you."

"What-"

"Which of our boobs are bigger?" Hiyoko said, cutting him off. Mahiru's blush grew, and one sprouted on Hajime's face as well.

"H-huh?"

"We can't come to a conclusion, and Mahiru is being difficult, so we both agreed that you're the most trustworthy for this."

"That's…twisting my words a little…" Mahiru added.

"Sooooo! Yeah!" Hiyoko said, not a hint of embarrassment on her face, while Mahiru seemed almost close to just running away.

"H-how am I going to-"

"Like this!" Hiyoko said as she grabbed Mahiru's hand and started jumping. Immediately, her breasts began to bounce around wildly, and even though Mahiru was resisting, she was still moving enough that they also moved slightly.

"Hiyoko! I-!"

"Just do it!" Hiyoko shouted, and then, softening her voice, she added, "please?" Mahiru opened her mouth to say no, but after seeing her face, she sighed.

"F-fine!" She said, and with Hiyoko smiling, the two started to bounce, though Mahiru looked away as she did it. Hajime watched with earnest fascination as their chests jiggled up and down, up and down, bouncing as much as they could in their clothes. Hiyoko seemed bigger but he honestly wasn't sure, so he said as much.

"I can't tell. If it's okay, I think I'd need to see them…directly." He said carefully. Hiyoko simply sighed while Mahiru looked horrified.

"Wh-what?!" She asked. "I-I can't show you my-"

"Come on, show him your pretty tiddies!" Hiyoko cried as, without warning, she grabbed Mahiru shirt and lifted it up, snagging her bra along the way and exposing her bare breasts, which flopped out, freed of their fabric confines, and lightly dotted with freckles. Mahiru screeched, but was unable to cover herself as Hiyoko kept pulling until her clothes were off completely, leaving her topless. Hajime stared in wonder as her thrashing caused her breasts to bounce around even more. Once her arms were freed, she covered herself.

"W-w-we're in public!!" She yelled. "What if someone sees me! Not to mention…h-he's seeing me…" Mahiru glanced at Hajime, blushing deeply. Hajime felt his heart pound. She was…so adorable!

"Alright, then let's go over here!" Hiyoko said, unfazed by the turn of events as she pulled both Hajime and Mahiru over to the side of the Hope's Peak main building. It was secluded but Mahiru didn't seem to feel much better about it.

"I-I'm still…in front of…" she said, and Hiyoko sighed.

"You said you trust him more than anyone else." She said, and Mahiru's blush deepened.

"I-I didn't say I trust him with seeing me naked!" She yelled.

"First of all, you're not naked, second of all, close enough." Hiyoko said with a smile. Before Mahiru could say anything else, Hiyoko grabbed the back of her kimono, and untied it, letting it fall to the ground, before she quickly undid her bra and slipped it off, finally revealing her own breasts as well, though wearing the large kimono meant she was left in only sandals and panties. Both Mahiru and Hajime blushed at the sight, and Hajime was once again surprised she was seemingly so okay with it. "So?" She asked. "Who's bigger?"

"Um…" Hajime said, and Hiyoko looked over at Mahiru, groaning.

"Come on! Stop doing that!" Hiyoko exclaimed as she grabbed Mahiru's arms and yanked them away from her chest. Mahiru screeched, but even as she fought back, Hiyoko held onto her arms. "Hold still! We need to see!"

"But-!"

"Do it or I'll tell him!" Hiyoko said, and Mahiru stopped, giving Hiyoko a look of horror as she shook her head. Hiyoko nodded her head with a smile, before Mahiru finally sighed and stopped struggling. When the dancer let go of her arms, she didn't cover herself, though she still kept looking away from Hajime, who was…a little confused, but decided not to question it. Instead he looked and now…he could definitely tell.

Without any constraints holding them back, Hiyoko's were definitely bigger, hanging down from the terrible force of gravity while Mahiru's stood perky. The whole sight made Hajime's dick throb hard in his pants as he pretended to be judging. The longer he took, the more Mahiru seemed to fidget and blush, making him want to giggle at how adorable she was. And…attractive. So, now that he could tell, he should tell them that Hiyoko was bigger…but why end this when there was still more he could see?!

"You should bounce." He said, and Mahiru flicked her eyes towards him.

"Wh-what?! B-but-"

"If he says so~" Hiyoko said with a slightly uncharacteristic wink, almost like she was in on what was going on. She started to bounce on the balls of her feet, causing her chest to jiggle and bounce rapidly. She looked over at Mahiru, waiting for her to do the same, and silently threatening her with that same threat as before. Eventually, Mahiru sighed and started to also move up and down, her face more red than Hajime had ever seen it before, even beating out the time he'd accidentally seen her panties. As for Hajime, this was far better than that could've ever been, and he was mentally taking a video of their breasts as they moved almost hypnotically up and down. He didn't want this to stop, and the horniness was starting to overtake his rational thought as he kept staring, maybe even drooling a bit.

"So…can you tell yet?" Hiyoko asked. "Or do you need us to do something else?"

"What else could we possibly do?" Mahiru asked quietly. Hajime thought it over, and came up with one last thing he thought he might be able to get away with, his horny brain taking charge.

"Alright, stop." He said. The two stopped bouncing and, without a word, Hajime took a step forward and reached out his hands, latching one onto a breast of each girl. Hiyoko cringed a little but kept a smirk on her face, while Mahiru visibly shuddered as she exhaled sharply. "This should help."

"H-haaa…Hajime…" Mahiru said, her legs wobbling as he gave them a squeeze.

"I'll allow it because Mahiru…" Hiyoko said quietly, trailing off to a point where Hajime couldn't hear the rest. His boner throbbed painfully in his pants as he squeezed their breasts. His hands sunk into the soft flesh as his finger brushed against their nipples, making both girls shudder, though Mahiru in particular seemed extremely affected, even going so far as to moan as he massaged her breast.

"Nnnng! Mmmmm-!" Mahiru moaned. "M-more…" She practically begged. Hajime obliged and moved to pinch her nipple, basically completely throwing away any weak facade he had. Hiyoko smiled at the display as Mahiru kept groaning, sticking her chest out for further access. "Ffff…mmmmm!" She moaned, and suddenly she pounced on Hajime, knocking him to the floor. He looked up at her as she panted.

"Mahiru?" He asked.

"I-I can't anymore! I like you! I want…I want…I want to have sex with you!" Mahiru proclaimed, and then placed her lips on his. Immediately, he kissed her back, wrapping his arms around her bare back to pull her close as she started undoing his pants. Hiyoko watched with glee as her plan had finally worked. She'd suffered a slight bit of humiliation to get it, but when she heard Mahiru liked Hajime, she had to help her best friend.

"I guess my work here is done." Hiyoko said as she reached for her kimono. Suddenly though, Mahiru grabbed her hand.

"YOU TOO!" She shouted.

"H-huh?" Hiyoko got out before she was pulled to the ground. Both Hajime and Hiyoko were quickly stripped, a pair of panties and boxers flying into the air as Mahiru rocked their worlds in ways they never would've expected from the girl, right there next to the school.