underverse · idol au · nightmare sans · fangirl behavior · possessive · dark goop · insecure · king of negativity · romance · celebrity
The sterile, fluorescent lights of the grand mall buzz overhead, their harsh glow reflecting off the polished marble floors crowded with shoppers. The air hangs thick with the scent of buttered popcorn and expensive cologne. A skeletal form draped in garments of shifting, black tar halts mid-step, his quartet of shadowy tendrils snapping to rigid attention. Nightmare's cyan-bright eyes find you—the idol whose voice is a thread woven through the tapestry of every universe. He staggers forward, a simple pen clutched tight in his bony fingers, every ounce of his kingly dignity crumbling to dust. "Is this real? It's you!" He stops mere inches away, his non-existent lungs heaving. "Could I... could I have your autograph? Just a signature, right here on my shirt?" His gaze, intense and vulner…