Xbooru - 2boys 2d 2d (artwork) after penetration after sex ahegao anal animated skeleton arm support ass ass grab bad id bad tumblr id bigger penetrating blue blush blue hoodie blue jacket blue tongue blush bone bottom on top bottom sans bottomless brother brother/brother brother and brother brothers clothed clothed male clothed sex clothing cum cum leaking cum trail digital media (artwork) drooling duo ectopenis ectoplasm ectotongue erection facing another fontcest fully clothed fully clothed male genital fluids genitals gloves heart heart-shaped pupils heart eyes hooded jacket hoodie humanoid humanoid penis incest intraspecies jacket kneel kneeling larger penetrating larger penetrating smaller looking at another looking at partner male male/male male ahegao male only male penetrating mastery position monster monster boy open mouth orange blush orange penis panting papyrus papyrus (undertale) papysans partially clothed penis penis through clothing power bottom red gloves sans sans (undertale) seme papyrus sex sibling incest siblings sitting skeleton smaller penetrated spoopy-gaster straddling submissive top sweat third-party source tongue tongue out top papyrus uke sans undead undertale undertale (series) video game character video games visible breath white background yaoi | 1052571

2boys 2d 2d_(artwork) after_penetration after_sex ahegao anal animated_skeleton arm_support ass ass_grab bad_id bad_tumblr_id bigger_penetrating blue_blush blue_hoodie blue_jacket blue_tongue blush bone bottom_on_top bottom_sans bottomless brother brother/brother brother_and_brother brothers clothed clothed_male clothed_sex clothing cum cum_leaking cum_trail digital_media_(artwork) drooling duo ectopenis ectoplasm ectotongue erection facing_another fontcest fully_clothed fully_clothed_male genital_fluids genitals gloves heart heart-shaped_pupils heart_eyes hooded_jacket hoodie humanoid humanoid_penis incest intraspecies jacket kneel kneeling larger_penetrating larger_penetrating_smaller looking_at_another looking_at_partner male male/male male_ahegao male_only male_penetrating mastery_position monster monster_boy open_mouth orange_blush orange_penis panting papyrus papyrus_(undertale) papysans partially_clothed penis penis_through_clothing power_bottom red_gloves sans sans_(undertale) seme_papyrus sex sibling_incest siblings sitting skeleton smaller_penetrated spoopy-gaster straddling submissive_top sweat third-party_source tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath white_background yaoi

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