Xbooru - 2010s 2018 2boys 2d 2d (artwork) animated skeleton artist name black background blue penis blush bottom sans brother brother/brother brother and brother brothers clothed clothed male clothing comic comic page comic panel couch cum cum on face digital media (artwork) dirty talk dominant dominant male domination duo echoheartx ectopenis elegantfolly english text fontcest fully clothed fully clothed male gay gloves handjob hooded jacket hoodie incest jacket kicking kicking another male male/male male only maledom malesub monochrome monster orange cum orange penis papyrus papyrus (undertale) papysans partially colored penis prehensile penis sans sans (undertale) seme papyrus semen on face sequence sequential skeleton sofa submissive submissive male tentacle penis text top papyrus uke sans undead undertale undertale (series) video game character video games yaoi