Work Text:
Big Brother!Genya who you’ve clung to ever since your family died and Sanemi left you both.
Big Brother!Genya who makes you promise not to become a demon slayer, and insists he’ll convince Nemi to forgive him and come back.
Big Brother!Genya who always holds you close after coming back from a mission, and you pretend you don’t feel the sobs wracking his body.
Big Brother!Genya who won’t stop apologizing for being the one to drive Sanemi away, for breaking apart what little family you two still had.
Big Brother!Genya who can’t bring himself to tell you that you’re too old to still be sleeping in his bed at night. Who instead pulls you closer and presses his lips to your forehead.
Big Brother!Genya who brushes your hair every morning, murmuring about how soft and pretty it is.
Big Brother!Genya who starts getting more and more flustered by your affection as you grow up, finally filling out and turning into a woman.
Big Brother!Genya whose breath shudders every time you patch up his wounds after another fight, feeling your fingers graze against his skin.
Big Brother!Genya who can barely breath when your tracing his cheek scar with your fingers, telling him how beautiful it is.
Big Brother!Genya who knows he should push you away when he notices your eyes flickering towards his lips but can’t bring himself to do it.
Big Brother!Genya who lets out a needy whimper as you lean in, pressing your lips to his slowly.
Big Brother!Genya whose lap you crawl into as you share your first kiss, knowing in your heart it was always meant to be like this.
Big Brother!Genya whose hands find your waist hesitantly, unsteady and uncertain but warm and grounding.
Big Brother!Genya who’s bright red when you pull away, making you giggle softly.
Big Brother!Genya who grumbles at you to shut the hell up as he pulls you into another kiss, promising to never let go.