All You Asked (смешанная)

Katsuki has been Izuku's best friend since he was three years old. Katsuki is the smartest person he knows. After all, Katsuki taught him everything from how to read and speak multiple languages to completing complex math equations with relative ease. Katsuki's always been protective and considerate of him and he's done his best to be a good friend in turn. Which makes it all the worse when Izuku comes to a surprising realization with the help of some of his classmates: Katsuki is in love with him.
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All Enji wanted was to surpass All Might. He couldn't do it himself, so he set about having and raising a child to do it for him. His first three children were failures, but he had high hopes for the fourth one. That child was going to be everything Enji had ever hoped for. And he was right. As far as his quirks went, Shouto was exactly what Enji was looking for.
It was everything else about him that was so much more than Enji had ever anticipated.