As the bus doors opened Mei Hatsume stepped on, caught up in her own world. The giantess engineer had been up most of the night working on one of her babies, and as was common for her, had opted to skip out on her morning shower. She was dressed in her usual garb of her jumpsuit opened, and wrapped around her waist, with a tank top covering her chest, showing off her generous curves. 

Mei trudged down trough the bus, absent mindedly tinkering with a small device in her hands, and paying little attention to her surroundings. She came to a stop at the seat Izuku was lying on, and shimmied in to sit down.

Izuku had been trying to see who had walked on the bus, but could not immediately see it on account of the seat in front of him blocking his view. Because of that he had chosen to look out the window instead, taking in what view he could get from his position. As he was gazing up at the sky, an unnerving feeling crept over him, and he turned his head to the aisle, only to see a giant pink haired girl shimmying into the seat. Izuki lept up, hoping to get away before he got buried beneath her, but as he did, he saw the giantess bend to sit down, and all he could see was a generous backside about to rain down on him. Izuki took off, trying to make a run for it, but the giant ass came down on him, with a big *thump* and pinned him down to the seat. As he lay bured under the massive ass, Izuku picked up on a nasty scent coming from above. Whoever the giantess was, she clearly wasnt into basic hygiene. 

Up above Mei was still occupied with the invention in her hands, but when she sat down, she could not help but feel a slight annoyance under her rump. The giantess had no interest in getting up to check, as her baby was much more important, so instead she opted to wriggled her backside around, hoping to deal with the annoyance beneath her. 

Izuki tried wriggling to get the attention of the woman above him. As he trashed around, trying his best to not breathe trough his nose on account of the foul musk above him, he felt the giantess stir a little bit. Izuku was relieved that she had at least noticed him, but soon felt himself getting dragged forcefully across the seat. The giantess was wriggling her own rear from side to side, pummeling the small boy around under her hefty backside. Izuku desperatly tried to fight back against the giant backside, but ínbetween getting thrown around by the giant cheeks, all his fighting amounted to was his hands sinking into the soft backside of his new tormentor. 

As Mei continued to wiggle around in her seat, eventually the irritant under her backside had been taken care of. She leaned back a bit more into her seat, focusing on her invention for the rest of the bus ride. About 20 minutes later, the bus had arrived at the school, and Mei got up from her seat.

Did she check if the annoyance was still on the seat?