alternate_universeanimated_skeletonblack_sclerablue_clothingblue_eyesbonebrother_(lore)brothers_(lore)clothedclothed_maleclothed_sexclothingcoloreddetailed_backgrounddigital_drawing_(artwork)digital_media_(artwork)duoelectronicserectionfellatiogenitalsglovesglowingglowing_genitaliaglowing_penishandwearhi_reshumanoidincest_(lore)insidekerchieflightlizherulogomalemale/malemale_penetratedmale_penetratingmale_penetrating_maleneckerchiefneckwearnightnot_furryoraloral_penetrationorange_clothingorange_penispapyrus_(underswap)papyrus_(undertale)penetrationpenilepenissans_(underswap)sans_(undertale)sexshadedsibling_(lore)skeletontelevisiontoonyundeadunderswapundertaleundertale_(series)veinveiny_peniswhite_bodywhite_clothingwindow