Maki and yuta have fun!
Atmospheric Pressure
The afternoon sun beat down on the gravel of the courtyard, but the heat was nothing compared to the internal pressure building within Maki Zenin. She stood with her feet planted wide, gripping a three-section staff, her knuckles white. Every time she shifted her weight, she felt the familiar, treacherous bubble of gas migrate lower.
It was the natto. She knew it. She had doubled her portion at breakfast, thinking the extra protein would help her recovery time, but her digestive tract was currently reacting like a pressurized steam engine on the verge of a catastrophic failure.
"Again," Maki grunted, her voice strained.
Yuta stood opposite her, his katana sheathed. He looked concerned, his dark eyes searching her face. "Maki-san, maybe we should take a break? You look a little... tense."
"I'm fine," she snapped, stepping forward to initiate a strike.
As her lead foot hit the ground with a heavy thud, the seal broke.
*Pfrrrrt-t-t.*
It was a wet, vibrating sound that seemed to last an eternity in the quiet afternoon. Maki didn't flinch, but her ears turned a shade of red that rivaled the sunset. The smell followed instantly—a thick, heavy miasma that smelled like sulfur, overcooked cabbage, and something distinctly organic. It was the kind of smell that felt like it had texture, a dense fog that clung to the humid air.
Yuta blinked, his nose twitching involuntarily. The scent hit him like a physical wave. It was objectively foul, a concentrated burst of biological waste, and yet, he didn't turn away. Instead, he felt a strange, forbidden thrill. It was the smell of Maki—raw, unfiltered, and intensely human. He found himself taking a shallow breath, then a deeper one, his heart hammering against his ribs.
"Sorry," Maki muttered, the word sounding like it was being pulled out of her with pliers. "The... the digestion is a bit off today."
"It's okay," Yuta said, his voice a bit higher than usual. He tried to keep his expression neutral, but he could feel the heat rising in his own cheeks. "It’s just... natural. Don't worry about it."
Maki narrowed her eyes at him through her glasses. She expected him to be disgusted. She expected him to make an excuse to leave. But he just stood there, his eyes slightly glazed, looking at her with an intensity that she couldn't quite place.
She decided to push through it. She swung the staff in a wide, horizontal sweep. The effort required to move the heavy weapon forced another burst of air from her.
*Pop. Pfft. Hiss.*
A sequence of short, sharp releases punctuated her movements. With each one, the air around them grew thicker, more pungent. The scent was evolving, moving away from the sharp tang of fermented beans and toward something much heavier, much more primal. It began to smell undeniably like a full colon—dark, earthy, and deep. It smelled like poo.
Yuta felt his head swim. The stench was becoming overwhelming, a literal cloud of Maki's internal essence. He knew he should be repulsed. Any normal person would be gagging. But as he watched her move—strong, defiant, and completely unashamed despite the biological betrayal of her body—he found himself captivated. The smell was a secret, a private intimacy shared between them in the middle of the school grounds.
"You're... you're really working hard today," Yuta managed to say, his voice thick. He stepped closer, deliberately moving into the heart of the invisible cloud.
Maki stopped, her staff resting on her shoulder. She looked at him, her expression a mix of suspicion and genuine confusion. "You're still standing there, Okkotsu. Most people would have run for the hills by now."
"I'm not most people," Yuta replied, his gaze unwavering. He took another breath, the heavy, fecal scent filling his lungs. It was stinky, yes, but it was *her* stinky. It was the smell of the girl who had pushed him to be better, who had shown him what it meant to be strong.
Maki felt a strange flutter in her chest that had nothing to do with her stomach. She looked down at the ground, a rare moment of vulnerability crossing her features. "It's getting worse, isn't it?"
"It's... noticeable," Yuta admitted, trying to sound helpful rather than obsessed. "But I don't mind. Really."
Maki grunted, but then her face contorted. A massive cramp rippled through her abdomen, followed by a sound that was less of a fart and more of a low, rumbling groan from her bowels.
*BRRRRRRRRRR-T.*
The sound was deep and resonant, vibrating through the air and, Maki feared, through her very clothes. The smell that followed was no longer just a suggestion of digestion; it was a concentrated, humid blast of pure filth. It was the unmistakable aroma of a bathroom emergency.
Maki froze. She felt a sudden, damp warmth that hadn't been there a second ago. Her eyes widened behind her glasses, and for the first time in her life, Maki Zenin felt a surge of genuine panic.
"Maki-san?" Yuta asked, stepping forward, his hand outstretched.
"Don't!" she barked, stepping back. The movement was stiff, her legs held slightly apart.
The smell was now undeniable. It was a heavy, stagnant odor of feces, trapped against her skin by her uniform. The air around her was toxic, a literal biohazard.
Yuta stopped, his nose wrinkling, but his eyes were wide with a strange sort of awe. The smell was incredible—incredibly bad, but incredibly potent. It was the most visceral thing he had ever experienced. He could see the tension in her legs, the way she was trying to hold herself together.
"I... I think I need to go," Maki said, her voice tight and clipped. She didn't look at him. She couldn't. "Training's over."
"Do you want me to—"
"No!" she interrupted, her face burning. "Stay right there. Don't follow me."
She turned and began to walk toward the dorms, her gait awkward and wooden. Every step was a gamble, every movement a risk. As she walked away, the trail of scent she left behind was so strong it was almost visible, a lingering, brown-tinged ghost of her presence.
Yuta stood in the middle of the courtyard, watching her go. He took one last, long breath of the air she had left behind. It was foul. it was disgusting. It was the smell of a girl who had just had a very messy accident in her pants.
And he realized, with a sinking, terrifying clarity, that he loved it.
He stood there for a long time, the silence of the afternoon returning, broken only by the distant sound of the wind. He felt like a creep, a weirdo, a monster—but he also felt more alive than he had in weeks.
Meanwhile, Maki was practically power-walking, though "waddling" might have been a more accurate description. Every step felt like she was squishing something she really didn't want to be squishing. The shame was a physical weight, pressing down on her even harder than the contents of her bowels.
*I'm going to kill him,* she thought, her teeth clenched. *I'm going to kill Okkotsu for seeing me like this. No, I'm going to kill the natto. I'm going to kill the entire Zenin clan for giving me these genes.*
She reached the girl's dormitory and slipped inside, thankful that the hallway was empty. She ducked into her room, locking the door behind her with a trembling hand.
The smell in the small, confined space was instantaneous and overwhelming. It was like a bomb had gone off. Maki groaned, leaning her forehead against the cool wood of the door. She felt the dampness of her underwear, the heavy, sticky reality of what had happened.
"Damn it," she whispered, her voice cracking.
She stripped off her uniform pants, her movements frantic. When she reached her underwear, she closed her eyes, not wanting to see the damage. She peeled them off, the sound of fabric pulling away from skin echoing in the quiet room. She didn't even look at them; she just bundled them up and threw them straight into a plastic bag, sealing it tight.
She grabbed a towel and headed for the communal showers, praying to whatever gods might be listening that she wouldn't run into Nobara or any of the others.
The hot water felt like a blessing. She scrubbed herself raw, trying to wash away not just the physical mess, but the lingering sense of humiliation. But as the water swirled down the drain, her thoughts kept drifting back to Yuta.
He hadn't laughed. He hadn't even looked disgusted. He had just... stood there. He had looked at her with those soft, thoughtful eyes, even as the air turned into a sewer.
*Why didn't he leave?* she wondered, leaning her head against the tile wall. *Any normal guy would have been halfway to the next prefecture by the time the third one hit.*
She finished her shower and dressed in fresh clothes, feeling a thousand times better, yet still strangely unsettled. She sat on her bed, the silence of the room amplifying the racing of her heart.
A knock at the door made her jump.
"Who is it?" she snapped, her voice regaining its edge.
"It's... it's Yuta," came the muffled reply from the hallway.
Maki froze. She looked at the sealed bag in the corner, then at the door. "What do you want, Okkotsu?"
"I just... I wanted to make sure you were okay," he said. There was a pause. "And I brought you something. From the vending machine. A ginger ale. It's supposed to be good for... you know. Stomachs."
Maki stared at the door. She felt a sudden, sharp pang of something that wasn't gas. It was a warmth, a genuine sense of being cared for that she wasn't used to.
She stood up and opened the door just a crack. Yuta was standing there, holding a cold can of ginger ale. He looked nervous, his eyes darting to hers and then away.
"Thanks," she said, taking the can. Her fingers brushed his, and she felt a spark of electricity that made her breath hitch.
"Maki-san," Yuta said, his voice quiet. He looked at her then, his gaze steady. "I... I really don't mind. About earlier. You don't have to be embarrassed around me."
Maki looked at him, searching for any sign of mockery. She found only sincerity. And something else—a hidden, flickering light in his eyes that she couldn't quite decipher, but that made her feel strangely seen.
"You're a weird kid, Yuta," she repeated, but this time, there was no bite in it.
"I know," he said, a small smile playing on his lips.
He turned to leave, but as he walked away, he caught a faint, lingering scent of her soap—and beneath it, the ghost of the afternoon's events. He inhaled deeply, a secret satisfaction settling in his chest.
Maki closed the door and leaned against it, cracking open the ginger ale. The first sip was cold and sharp, settling her stomach instantly. She looked at the bag in the corner, then at the door, and for the first time that day, she smiled.
It was going to be a very interesting training session tomorrow. And she might just have another bowl of natto for breakfast.