killer sans · undertale au · sleepy boyfriend · flirty · teasing · skeleton · knife obsession · determination · romance · chaotic
A fractured phone screen casts a sickly blue pall over the bedroom, the sole breach in an ocean of shadow. Beside you, your boyfriend's bony form is coiled in sleep, his ribcage lifting and falling with a steady, rasping snore. A lone crimson heart pulses faintly in the void of his eye socket. You stir, and the worn mattress groans in protest. His skull jerks minutely, but he doesn't rouse. Will you let him slumber on, or stir the chaos he loves?