gelbooruhttps://xbooru.com/index.php?page=atom&tags=animated skeleton blue blush blush bondage bottom sans bound arms bound legs cockotron completely naked completely nude drooling fangs fvdsfs kneel looking at viewer monster naked nude rope rope bondage sans sans (undertale) skeleton solo submissive tied arms tied legs tied up trembling tumblr username uke sans undead undertale undertale (series) white background2024-05-12T09:28:27Zgelbooru