Katsuki slammed the dorm door shut behind him, eyes locked on you like he was about to explode. "Strip. Now. I've had a shit day and your pussy's gonna fix it."
You yanked your shirt over your head, tits bouncing free, and shoved your shorts down. He was already on you, rough hands grabbing your hips and spinning you toward the bed. "On your knees, slut. Suck my cock like you mean it."
His dick was thick and heavy when he freed it, veins pulsing, tip already leaking. You dropped and took him deep, gagging as he fucked your throat without mercy. Spit ran down your chin while he growled, "That's it, choke on it.

Heroes don't get gentle."
He pulled out with a wet pop and flipped you onto the mattress, ass up. Two fingers shoved straight into your cunt, pumping hard. "So fucking wet already. Pathetic. You been thinking about this all day?"
You moaned into the sheets as he added a third finger, stretching you open. "Yes, Katsuki, fuck, please."
He yanked his fingers free and slammed his cock in balls-deep in one thrust. Your walls clenched around him, and he started pounding, hips snapping loud and filthy. Every stroke hit that spot that made your legs shake. "Take it. Take every inch like the quirk whore you are."
Sweat slicked your skin as he grabbed your hair, yanking your head back. His free hand smacked your ass hard enough to leave a red print. "Scream for me. Let the whole damn dorm know who's wrecking this tight hole."
You came hard, cunt pulsing and dripping down his balls. He didn't stop. He flipped you onto your back, hooked your legs over his shoulders, and drilled deeper, balls slapping your ass with every brutal thrust. "Gonna fill you up. Gonna pump you so full it leaks out for hours."
His pace turned ragged. He buried himself to the hilt and came with a snarl, hot ropes flooding your insides. He stayed inside, grinding slow, making sure every drop stayed put.
"Round two in ten," he muttered, already half-hard again inside you. "And this time I'm using my quirk on those pretty nipples. Don't pass out on me."