Xbooru - 2020s 2022 2boys anal animated skeleton bigger male bigger penetrating bigger penetrating smaller blue hoodie blue jacket bottom on top bottom sans bottomless bottomless male brother brother/brother brother and brother brother penetrating brother brothers duo ectopenis ectoplasm fontcest gloves hooded jacket hoodie humanoid incest intraspecies jacket larger male larger penetrating larger penetrating smaller larger sub male male/male male only male penetrating monster monster boy papyrus papyrus (undertale) papysans partially clothed partially clothed male penetration penis power bottom red gloves red penis s2ames2 sans sans (undertale) seme papyrus sex sibling incest siblings skeleton smaller dom smaller penetrated socks submissive top top papyrus trembling uke sans undead undertale undertale (series) white background white socks yaoi | 1028281

2020s 2022 2boys anal animated_skeleton bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket bottom_on_top bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers duo ectopenis ectoplasm fontcest gloves hooded_jacket hoodie humanoid incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller larger_sub male male/male male_only male_penetrating monster monster_boy papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis power_bottom red_gloves red_penis s2ames2 sans sans_(undertale) seme_papyrus sex sibling_incest siblings skeleton smaller_dom smaller_penetrated socks submissive_top top_papyrus trembling uke_sans undead undertale undertale_(series) white_background white_socks yaoi

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