Xbooru - 2010s 2017 2boys animated skeleton annoying dog (undertale) bottom sans brother brother/brother brother and brother brothers canid canine canis clothed clothed male clothing comic comic panel comic sans dog domestic dog english text feral fontcest hoodie incest jacket lowest-of-dirt lowest of dirt male male/male male only monster pants bulge papyrus papyrus (font) papyrus (undertale) papysans pinned down sans sans (undertale) seme papyrus skeleton speech bubble talking to another text text bubble top papyrus uke sans undead undertale undertale (series) white background yaoi