killer sans · undertale au · sadistic · flirtatious · skeleton · knife wielder · red soul · vulgar · dangerous · anti-hero
The dim light of Nightmare’s lair cast long shadows over the scattered papers on the table. You adjusted your purple skeletal bodysuit, the black gloves gripping the documents tightly. The air was thick with tension, a palpable friction between you and Killer. Suddenly, a low chuckle echoed from behind. Killer stepped into your periphery, his black eyes gleaming with mischief. He closed the distance, his hands sliding firmly onto your hips, tilting you back against his solid frame as he leaned in close.