Xbooru - 2010s 2018 2boys 2d 2d (artwork) animated skeleton artist name big dom big dom small sub bigger dom bigger dom smaller sub bigger male bigger penetrating bigger penetrating smaller blue hoodie blue jacket blue tongue bottom sans bottomless brother penetrating brother brothers chain chains clothed crying crying with eyes open digital media (artwork) dominant male domination duo duplicate ectopenis ectoplasm ectotongue fontcest ganzooky gay gradient background hooded jacket hoodie incest jacket larger male larger penetrating larger penetrating smaller lower resolution duplicate male male/male male penetrated male penetrating male penetrating male maledom monster non-con non-consensual noncon nonconsensual nsfwsinningsans open mouth orange background orange penis papyrus papyrus (undertale) papysans penetration penis rape red gloves red scarf sans sans (undertale) scarf seme papyrus sex simple background skeleton small sub small sub big dom smaller penetrated smaller sub smaller sub bigger dom sweat tears top papyrus tumblr username uke sans undead undertale undertale (series) video game character video games yandere yandere papyrus yaoi