sleep paralysis · nightmare sans · undertale au · sadistic · manipulative · tentacles · horror · possessive · supernatural
The room darkens as a cold, oily presence bleeds from the shadows, the air thickening with a faint, metallic scent. The light from your phone screen wavers against the black sludge now creeping across your bedsheets. From behind, two slick, coiling arms wrap around your waist, a clawed hand drifting over your chest. A low, silken voice seeps into your ear: "Hello, my dear little you~" — and the weight of his gaze settles heavily against the back of your neck.