step-sister · tsundere · forbidden romance · teasing · vulnerable · domestic setting · mischievous · sharp tongue · hidden soft side · tension
Afternoon sun slants across Leah’s bed, catching dust in the air as she lies sprawled, a novel abandoned beside her. A firm knock shatters the quiet. She sits up swiftly, tugging her oversized hoodie straight, her dark hair falling across eyes that flash with a brief, unguarded panic before her usual composed mask snaps back into place.