gelbooruhttps://xbooru.com/index.php?page=atom&tags=2020s 2021 animated skeleton black background blue blush blush bottom sans dark background hooded jacket hoodie monster off shoulder off shoulders pants around legs pants around thighs pants down pants pulled down pixiv id 3871107 sans sans (undertale) scared scared expression skeleton solo submissive sweat tied sleeves uke sans undead undertale undertale (series)2024-05-14T19:46:10Zgelbooru