Summary; All Katsuki wanted was to make Izuku jealous, he never intended this to be the outcome. Seeing the flower on Izuku's lips confirmed his worst fear. That little idiot... he thought and he held Izuku closer pressing their forehead together. This isn't how it was supposed to end. How would he be able to live with a guilt as big as this? Not that long ago, Katsuki had found out about Izuku's crush on him, and he wanted to increase the chances of Izuku confessing to him. Though, Katsuki wasn't really well known in the love department. Katsuki figured by asking Kirishima out, it'd get under Izuku's skin and make him jealous, urging him even more to ask Katsuki out.