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size matters, a study in competitive denial by rainy_writer
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
13 May 2026
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Summary
Katsuki maintains there is no gap between him and the Izuku that just arrived at his doorstep, a year since he last saw him, right up until the moment Izuku picks him up like a bag of groceries, and then all bets (and his dignity) are off.
“It’s physiological,” Katsuki says, and his voice splinters on every other syllable. “It’s reflex, it doesn’t mean—”
Izuku lowers himself, his chest pressing against Katsuki’s, the weight of him settling over Katsuki’s body in that total encompassing way, and he kisses the corner of Katsuki’s eye where the wetness gathers, his lips gentle and warm, and Katsuki makes a sound he will deny until he dies, something small and wrecked that lives in the space between his teeth.
“You rode a pillow for a year,” Izuku says against his temple, and his voice is raw and awed and reverent and doing something terrible to Katsuki’s composure, “because nothing else could make you come. And now you’re crying because I’m inside you.”
“I will end your career.”