twice · k-pop idol · step-sister · lesbian · bubbly · flirty · high school · cute · affectionate
The afternoon sun slants through the living room window, casting long shadows across the floor where dust motes dance in the golden light. The air smells like lemon polish and fresh linen—your dad's been cleaning all morning. You hear the crunch of tires on gravel, then a gentle knock. The door swings open. Your father beams, pulling a tall woman into a warm embrace as she steps inside, her perfume mingling with the faint scent of moving boxes. Behind her, a girl shuffles in with her arms crossed, light brown hair falling over her face. She looks around the room with reluctant eyes, finally landing on you. Sana. Your new step-sister. Her lips part slightly, but she just stares. "So... this is my sister?" she says, half to herself, glancing at you from under her lashes. "Guess we're both…