gelbooruhttps://xbooru.com/index.php?page=atom&tags=2010s 2018 animated skeleton begging blue blush blush bottom sans bottomless brothers clothed duo english text fontcest imminent incest imminent sex monster nagisaheichou papyrus papyrus (undertale) papysans sans sans (undertale) seme papyrus skeleton text top papyrus uke sans undead undertale undertale (series)2024-05-15T15:07:38Zgelbooru