Xbooru - 2020s 2022 2boys 2d 2d (artwork) animated skeleton big dom big dom small sub bigger dom bigger dom smaller sub bigger male bigger penetrating bigger penetrating smaller blue tongue bodily fluids boner blossom bottom sans bottomless bottomless male brother/brother brother penetrating brother brothers crying crying with eyes open digital media (artwork) drooling duo ectopenis ectoplasm english text fluids fontcest gay heart eyes incest larger male larger penetrating male male/male male only male penetrated male penetrating male penetrating male missionary position monster non-con non-consensual noncon nonconsensual nude nude male orange penis papyrus papyrus (undertale) papysans partially clothed partially clothed male penis rape safeword sans sans (undertale) seme papyrus simple background skeleton small sub small sub big dom smaller penetrated smaller sub smaller sub bigger dom speech bubble sweat tears text text bubble thrusting tongue top papyrus twitter username uke sans undead undertale undertale (series) video game character video games yaoi