Xbooru - 2010s 2016 2boys 2d 2d (artwork) alternate version available animated skeleton artist name big dom big dom small sub bigger dom bigger dom smaller sub bigger male bigger penetrating bigger penetrating smaller blue blush blue jacket blush bottom sans brother/brother brother and brother brother penetrating brother brothers clothed clothed sex digital media (artwork) drooling duo ectotongue english text fangs fontcest from behind from behind position gay gloves heart-shaped pupils heart eyes heart shaped pupils incest jacket laddinger larger male larger penetrating larger penetrating smaller male male/male male only male penetrated male penetrating male penetrating male onomatopoeia orange blush orange tongue outside papyrus papyrus (undertale) papysans penetration penetration from behind penetration through clothes public sex red gloves sans sans (undertale) seme papyrus sex sex from behind skeleton skeletons small sub small sub big dom smaller male smaller penetrated smaller sub smaller sub bigger dom speech bubble stealth sex sweat text text bubble tongue top papyrus uke sans undead undertale undertale (series) unseen character video game character video games visible breath watermark x-ray yaoi | 1025989

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2010s 2016 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blush bottom_sans brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_sex digital_media_(artwork) drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils heart_eyes heart_shaped_pupils incest jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male onomatopoeia orange_blush orange_tongue outside papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind skeleton skeletons small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble stealth_sex sweat text text_bubble tongue top_papyrus uke_sans undead undertale undertale_(series) unseen_character video_game_character video_games visible_breath watermark x-ray yaoi

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