gelbooruhttps://xbooru.com/index.php?page=atom&tags=2010 2010s 2018 2boys 2d 2d (artwork) ?! animated skeleton big penis bigger male book books bottom sans brother brother/brother brother and brother brothers clothed clothing comic comic page comic panel comic sans cum cum on face cumshot desk digital media (artwork) duo ectopenis edit edited ejaculation english text fallen9choirs fontcest gay handjob incest indoors larger male laying down long image lying down male male/male male only monster orange cum paper papyrus papyrus (font) papyrus (undertale) papysans pencil penis sans sans (undertale) seme papyrus sequence sequential skeleton smaller male speech bubble talking tall image text text bubble third-party edit top papyrus tumblr username uke sans undead undertale undertale (series) video games yaoi2024-05-09T22:33:59Zgelbooru