gelbooruhttps://xbooru.com/index.php?page=atom&tags=2010s 2018 anal animated skeleton ass ass grab ass up backsack balls blue ass blue blush blue body blue butt blue penis blue tongue blush bottom sans butt disembodied penis ectobody ectobutt grabbing ass grabbing own ass male male only male penetrated malesub monster nsfwgarbagedump penetration penis penis in anus penis in ass pixiv id 36285069 sans sans (undertale) sex shirt only skeleton solo solo male submissive submissive male testicles tongue tongue out top-down bottom-up uke sans undead undertale undertale (series) white background2024-05-18T02:13:19Zgelbooru