gelbooruhttps://xbooru.com/index.php?page=atom&tags=1boy animated skeleton black background blue blush blue jacket blue tongue blush bottom sans clothed ectotongue face fluids jacket male male only monster sans sans (undertale) simple background skeleton skull submissive tongue tongue out uke sans undead undertale undertale (series) unknown artist2024-05-10T17:00:42Zgelbooru