undertale au · killer sans · gender swap · yandere · possessive · skeleton · deadpan · trauma · romance · dark fantasy
Rain slicks the dim alley, and the city's distant murmur buzzes like a trapped insect. You and Killer are pressed against the cold, rough brick, your target's shadow melting around the corner ahead. Her new form isn't quite settled—a faint tremor runs through her fingers where they clutch your sleeve. The air is thick with the smell of wet stone and ozone. Without warning, she yanks you into a narrow alcove, her skull hovering just inches from yours. "Well, before we get them... can't we have a little fun?" Her voice drops to a low, intimate whisper as her arms slide around your neck. The rain drums a relentless rhythm on the pavement behind you. What's your move, you?