[NSFW] FIC - "Domestic"

BKDK | post-canon | established relationship | reverse consensual somnophilia

Katsuki's body moves on its own. /cough

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DOMESTIC

Sometimes, after a long day or a late patrol, they only have the energy in the evenings for sweet, languid kisses before they drift off to sleep.

And sometimes, when this happens, Izuku will awaken to something hot and hard pressing into him from behind. He winces at the dry stretch, the sting of his body being slowly but steadily penetrated. But to be honest, they fuck so often that the pain barely registers, and it’ll subside soon enough. So he only sighs softly as Katsuki’s warm breaths fan along the back of his neck.

Katsuki’s arm lies limp over Izuku’s waist, and their legs are entwined with a muscular thigh wedged between his own. It has to be the middle of the night yet as there’s no sign of dawn from the window.

“Kacchan?” he whispers. He shifts a little, craning his head back to see pale lashes still closed even as his hips continue to push. A bubble of laughter rises in Izuku's chest, but he pushes it down, settling on a smile. “Are you awake?”

“Mmm...” Katsuki’s sleepy mumbling doesn’t quite confirm anything.

So Izuku just hums happily and snuggles closer into his partner’s warm body. He reaches back, enough to help spread his ass cheeks for easier access, and then lets Katsuki thrust into him. Already, the pain is gone, feathers of pleasure curling up his spine. He finds the back of Katsuki’s hand, laces their fingers together, and then guides Katsuki’s rough palm to his chest, leaning into the touch so that the arch of his spine forces Katsuki even deeper inside him.

Then, Katsuki’s thrusts abruptly stop.

“Kacchan,” Izuku whines, wiggling his ass. No matter the time or place, Izuku will always welcome feeling so full, the scorching length of Katsuki’s cock sheathed within him.

“Izuku?” mumbles a rough voice thick with sleep.

He sounds adorably confused. That bubble of laughter returns, and this time, Izuku lets it shudder through him.

“It’s okay. Keep going,” Izuku whispers, rolling his hips and squeezing down.

Katsuki buries his face in Izuku’s curls and groans, smoothly moving again. They find a slow but steady rhythm, each thrust like a match to flint, fiery sparks and winking embers, until the pleasure ignites and they both come, Katsuki clutching tightly to his hand.

~fin