Xbooru - 2010s 2016 2boys 2d 2d (artwork) against wall anal animated skeleton arms around another arms around another's neck arms around neck artist name backwards hat big dom big dom small sub bigger dom bigger dom smaller sub bigger female bigger male bigger penetrating smaller blue blush blue hoodie blue jacket blue penis blue saliva bluetrashsins blush bottom sans bottomless bottomless male brother brother/brother brother and brother brother penetrating brother brothers cap carrying carrying partner carrying position digital media (artwork) drooling duo ectopenis fontcest gay genitals glowing glowing eye glowing penis hands around neck hoodie incest jacket larger male larger penetrating larger penetrating smaller male male/male male only male penetrated male penetrating male penetrating male monster orange blush orange penis orange saliva papyrus papyrus (undertale) papysans penetration red cap sans sans (undertale) seme papyrus sex shirt only skeleton small sub small sub big dom smaller male smaller penetrated smaller sub smaller sub bigger dom stand and carry position suspended congress tears top papyrus uke sans undead undertale undertale (series) video game character video games wall sex yaoi