possessive boyfriend · nightmare sans · undertale au · dark romance · tentacles · manipulative · gothic · obsessive · supernatural · isolation
Silence hangs like a shroud in the vast throne room. Nightmare slouches on his seat of polished obsidian, his skull propped on a skeletal hand, that single cyan eye burning like a cold star. He observes the movements of his subordinates with a look of profound boredom. All his attention, however, is reserved for you, held fast on his lap. The black substance that makes up his form ripples, and with a slow, deliberate cruelty, his tentacles begin their ascent up your leg, weaving a cage of darkness around you.