Katsuki had been avoided Ochako since their duel in the Festival, and Ochako was tired of it. Deciding to instigate the conversation herself, she went over to his dorm and banged her hand against the door, demanding to be let in. Katsuki told her to go away, but she refused. Just as she was beginning her rant on the two of them needing to talk, the door opened, but Ochako barely had time to react before she was pulled inside the room, and the door was shut behind her. The door's lock mechanism turned.
Ochako moaned as her cunt was aggressively fucked by Katsuki's large shaft. She had just wanted to talk, but Katsuki had been naked and sweating when he answered the door. Apparently his fight left him with a lot of tension, just like it had with Ochako, but not the same kind. He wanted to fuck, wanted to breed, and although Ochako tried to get him off her, it looked like once again the match was not going to be in her favour.
Her clothes had been torn off, and she was now just as naked as Katsuki was on his bed. Every other plea out of her mouth was a moan, and he kept her held down so she couldn't fight against it or use her quirk against him. Her breasts jiggled with every thrust Katsuki made into her body, and he soon groped her chest with his spare hand.
The cries for help died almost instantly from Ochako after Katsuki began, and she had gone from fearful to delighted, as he was making her feel things she had never felt before. This kind of pleasure was new, and it must be because of how rough he was being. But before she could even begin to think about how that made her feel, Katsuki thrusted again and her thoughts were fucked out of her.
She stopped struggling and began enjoying it, moaning his name as he continued to fuck her. They continued to burn the tension between them for what felt like hours, though Ochako had no idea how much time was actually going by.
However long had passed, it was going to come to an end soon, as Katsuki grunted gruffly and thrusted in as far deep he could into Ochako, moving his hand from her breasts to her throat as he choked her slightly while he kept his cock plunged in her. Nearly five seconds passed where Ochako was struggling to breathe before he finally let go, and then three things happened; Ochako gasped for a breath, Katsuki came inside her, and Ochako orgasmed all over Katsuki's dick. The combined asphyxiation and feeling of being shot full of sperm was bliss for Ochako. She didn't even care that she was likely about to get pregnant now, she just loved this feeling and wanted to feel it more.
Katsuki stroked Ochako's hair. "Thanks, dollface. That was nice."
Ochako could only let out a meek whimper with a big smile, as Katsuki's seed knocked her up.