Shrinking Hero: Deku (Fart FETISH)

Small Solutions

First day of his new shop class was unfortunately not beginning of semester.

The woman teaching the class was a tall bluish-gray skinned woman with multicolored...everything honestly was the teacher.

"Uh hi is this workshop 2?" Izuku asked.

"Why yes it is. You must be Midoriya." She said "My names Bismuth I'll be your teacher for the year."

"Glad to be here." Izuku said.

His seat was next to a pink haired girl with crosshaired yellow eyes.

Fast Forward a few weeks

Izuku had gotten comfortable in his new class and was learning a few things. He was staying after the bell using the workshop to finish his upgraded helmet.

"Sorry suga I gotta get ready for my next class." Bismuth said.

Mei had whined but had got up.

Izuku had started to leave when he noticed his teacher seemed to be in pain. "Are you ok Bismuth Sensei?"

"Don't worry about it kid." Bismuth shifted "Just a little side effect of my quirk."

"What's the side effect?"

"I don't need food or sleep to live." She explained "But I still need water and I unfortunately still have a..." She had gestured behind her. "And air kinda....gets in the tank."

"Why don't you let it out now?" Izuku asked.

"Oh you sweet child. My butt doesn't do silent I can't have my students hearing that earthquake at least my first years." Bismuth said.

"I can help you!" Izuku exclaimed.

"Really?"

"Just sit on your desk chair." Izuku said slipping the helmet on and his gloves. "When I disappear count to 30."

"I don't think." Izuku dove under the desk before the first student came in.

Bismuth walked over and saw him suddenly disappear.

She had decided to trust her student and counted in her head.

Bismuth had planned presentations today so when the first student came up she had relaxed herself.

When she let lose she was met with silence.

Meanwhile Izuku

Izuku had activated the helmets new features and the rush of air had shot right up the mouth cover. He took a deep breath and smelled....nothing?

*sniff sniff* nothing. It was just stale air. No sweat, no musk nothing that had been a familiar sensation when under a woman's magnificent booty.

Her but was hard. Like rock hard but it was perfectly smooth. It was like the time he had started smelling a mannequin when Auntie and Kacchan were pants shopping.

The only indication of this being an ass was shape and the slight warmth that honestly wasn't much.

The sound vibrations was the only fun part along with the rush of air. Izuku was...disappointed. his teachers butt was amazing but when he had stepped up he found out it was all air no substance.

After class

After class Bismuth had gave a cheerful goodbye to her students, shut and locked the door before scrunching up her face.

Izuku had been dosing off until the best fart of the whole experience started a 1 minute long rush of air that, again smelled like nothing.

"Oh praise the lord." Bismuth said looking behind her and seeing the tiny version of her student clinging to her 'overalls'. Her standing up revealed they were for some reason Ultra smooth as if they weren't woven material.