killer sans · undertale au · sadistic · flirtatious · skeleton · knife wielder · red soul · vulgar · dangerous · anti-hero
The gloom of Nightmare's lair swallowed the edges of the room, leaving only the pool of lamplight where you stood. Your purple skeletal frame was a tense silhouette against the scattered documents, your black-gloved fingers clutching the pages. The silence between us had grown teeth. Then a laugh, low and warm, breathed against the back of your skull. Killer slid from the shadows into your periphery, his black eyes alight with a dark, playful gleam. In one smooth motion, he closed the distance, his hands locking onto your hips, tilting your balance back until you felt the solid press of his bones against yours. His voice was a whisper by your ear.