gelbooruhttps://xbooru.com/index.php?page=atom&tags=1boy 2010s 2018 2d 2d (artwork) animated skeleton blue blush blue penis blush blushing bottom sans bottomless bottomless male bound wrists digital media (artwork) ectopenis jacket male male only malesub monster nsfwgarbagedump panting penis sans sans (undertale) simple background skeleton solo solo male submissive submissive male tied up tied wrists uke sans undead undertale undertale (series) video game character video games white background2024-05-19T04:52:43Zgelbooru