gelbooruhttps://xbooru.com/index.php?page=atom&tags=1boy 2020s 2022 animated skeleton anterior nasal aperture ass ass focus blue blush blush blush lines bone bottomwear butt butt focus clothed clothing cute footwear full body grey background grin hoodie humanoid keithenel looking at viewer looking back male male only monochrome monster not furry sans sans (undertale) shorts simple background skeleton slippers smile solo solo male standing teeth topwear undead undertale undertale (series) video games2024-05-12T13:27:43Zgelbooru