gelbooruhttps://xbooru.com/index.php?page=atom&tags=1boy 2010s 2017 animated skeleton artist signature blue blush blue tongue blush bottom sans bottomless chinese text immolationyyx monster pixiv id 9733540 sans sans (undertale) shirt only shirt up skeleton submissive submissive male sweat text tongue trembling uke sans undead undertale undertale (series) white background2024-05-17T13:12:34Zgelbooru