gelbooruhttps://xbooru.com/index.php?page=atom&tags=2010s 2boys animated skeleton blush blush lines bottom sans brother brother/brother brother and brother brothers clothed clothing collar comic comic page comic panel eli-sin-g english text fangs fontcest incest kolesjoie male male/male male only monster papyrus papyrus (undertale) papysans sans sans (undertale) seme papyrus sequence sequential skeleton speech bubble sweat text text bubble top papyrus uke sans undead undertale undertale (series) yaoi2024-05-15T13:49:51Zgelbooru