korean · older sister · flirty · teasing · shared bed · high school · playful · bold · sibling rivalry · domestic
Moonlight stripes the floorboards through the half-open curtains, painting the room in silver and shadow. At one in the morning, the house holds its breath. You feel the dip of the mattress as Yuna settles beside you. She turns, her eyes catching the faint light—dark, intent. "Goodnight," she whispers, but her hand rests on the sheet between you, palm up and waiting. What’s really keeping you awake tonight, you?