gelbooruhttps://xbooru.com/index.php?page=atom&tags=... 1boy 1cuntboy 2010s 2018 animated skeleton bent over blue blush blush bottom sans brother brother/brother brother and brother brothers clothed comic comic page comic panel cuntboy dominant male duo ectotongue fontcest grabbing ass incest indoors male male/cuntboy maledom monochrome monster orange blush orange tongue papyrus papyrus (undertale) papysans partially colored sans sans (undertale) seme papyrus sequence sequential skeleton speech bubble text bubble titleze tongue tongue out top papyrus uke sans undead undertale undertale (series) yaoi2024-05-15T15:26:03Zgelbooru