Rule 34 - 1boy 1girls 2d Artist Request Bare Shoulders Brown Hair Collar Frisk Glowing Eyes Gold Tooth Hotpants Hug Human Human Female Looking At Viewer Male Nuvex Red Eyes Sans Sitting Skeleton Smile Spiked Collar Spikes Stockings Sweater Tagme Underfell Underfell Frisk Underfell Sans Undertale Undertale (series) Undertale Au Undertale Fanfiction