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sans (underfell)

alternate_universe anal anal_penetration balls blush bodily_fluids bone bottomless bound clothed clothing dialogue erection fangs fellatio fingerless_gloves genitals gloves glowing glowing_eyes grey_background group group_sex hands_tied handwear heart_eyes heart_symbol humanoid_genitalia humanoid_penis male male/male male_penetrated male_penetrating male_penetrating_male moan not_furry one_eye_closed open_mouth oral penetration penile penis penis_grab purple_eyes purple_penis purple_tongue red_eyes sex simple_background skeleton speech_bubble tears teeth text threesome tongue trio unknown_artist unknown_artist_signature underfell underlust undertale undertale_(series) papyrus_(underfell) sans_(underfell) sans_(underlust) sans_(undertale) animated_skeleton undead digital_media_(artwork) english_text signature source_request
alternate_universe anal anal_penetration balls blush bodily_fluids bone bottomless bound clothed clothing dialogue erection fangs fellatio fingerless_gloves genitals gloves glowing glowing_eyes grey_background group group_sex hands_tied handwear heart_eyes heart_symbol humanoid_genitalia humanoid_penis male male/male male_penetrated male_penetrating male_penetrating_male moan not_furry one_eye_closed open_mouth oral penetration penile penis penis_grab purple_eyes purple_penis purple_tongue red_eyes sex simple_background skeleton speech_bubble tears teeth text threesome tongue trio unknown_artist unknown_artist_signature underfell underlust undertale undertale_(series) papyrus_(underfell) sans_(underfell) sans_(underlust) sans_(undertale) animated_skeleton undead digital_media_(artwork) english_text signature source_request
alternate_universe bone cigarette clothed clothing coffee_mug container cross-popping_vein cup eyewear glasses gloves gold_(metal) gold_tooth handwear holding_container holding_cup holding_object hoodie jacket male necktie not_furry scarf sharp_teeth simple_background skeleton smile smoke smoking solo teeth text topwear vein white_background toono_(artist) outertale underfell underswap undertale undertale_(series) sans_(outertale) sans_(underfell) sans_(underswap) sans_(undertale) animated_skeleton undead english_text multiple_images
alternate_universe bone cigarette clothed clothing coffee_mug container cross-popping_vein cup eyewear glasses gloves gold_(metal) gold_tooth handwear holding_container holding_cup holding_object hoodie jacket male necktie not_furry scarf sharp_teeth simple_background skeleton smile smoke smoking solo teeth text topwear vein white_background toono_(artist) outertale underfell underswap undertale undertale_(series) sans_(outertale) sans_(underfell) sans_(underswap) sans_(undertale) animated_skeleton undead english_text multiple_images
alternate_universe bone boots chain clothed clothing footwear gold_(metal) gold_tooth group hoodie jacket male not_furry shirt shoes simple_background skeleton slippers topwear thescarred_(artist) outertale underfell underswap undertale undertale_(series) fan_character sans_(outertale) sans_(underfell) sans_(underswap) sans_(undertale) animated_skeleton undead 3:1 absurd_res hi_res
alternate_universe bone boots chain clothed clothing footwear gold_(metal) gold_tooth group hoodie jacket male not_furry shirt shoes simple_background skeleton slippers topwear thescarred_(artist) outertale underfell underswap undertale undertale_(series) fan_character sans_(outertale) sans_(underfell) sans_(underswap) sans_(undertale) animated_skeleton undead 3:1 absurd_res hi_res
alternate_universe blood bodily_fluids bone duo genitals handjob humanoid_genitalia humanoid_penis male male/male not_furry penile penis red_penis red_tongue sex skeleton tongue lizheru underfell undertale undertale_(series) papyrus_(underswap) sans_(underfell) animated_skeleton humanoid undead hi_res brother_(lore) brothers_(lore) incest_(lore) sibling_(lore)
alternate_universe blood bodily_fluids bone duo genitals handjob humanoid_genitalia humanoid_penis male male/male not_furry penile penis red_penis red_tongue sex skeleton tongue lizheru underfell undertale undertale_(series) papyrus_(underswap) sans_(underfell) animated_skeleton humanoid undead hi_res brother_(lore) brothers_(lore) incest_(lore) sibling_(lore)
alternate_universe bone clothing gold_(metal) gold_tooth male not_furry red_eyes skeleton smile text unknown_artist underfell undertale undertale_(series) gaster_blaster sans_(underfell) animated_skeleton monster undead 1:1 english_text
alternate_universe bone clothing gold_(metal) gold_tooth male not_furry red_eyes skeleton smile text unknown_artist underfell undertale undertale_(series) gaster_blaster sans_(underfell) animated_skeleton monster undead 1:1 english_text
alternate_universe bone cape clothing happy hoodie not_furry open_mouth skeleton smile snow snowing topwear weapon tu-ie underfell undertale undertale_(series) gaster_blaster papyrus_(underfell) papyrus_(undertale) sans_(underfell) sans_(undertale) animated_skeleton undead absurd_res hi_res
alternate_universe bone cape clothing happy hoodie not_furry open_mouth skeleton smile snow snowing topwear weapon tu-ie underfell undertale undertale_(series) gaster_blaster papyrus_(underfell) papyrus_(undertale) sans_(underfell) sans_(undertale) animated_skeleton undead absurd_res hi_res
alternate_universe bone duo genitals male not_furry penis selfcest skeleton square_crossover czdata underfell undertale undertale_(series) sans_(underfell) sans_(undertale) animated_skeleton humanoid undead
alternate_universe bone duo genitals male not_furry penis selfcest skeleton square_crossover czdata underfell undertale undertale_(series) sans_(underfell) sans_(undertale) animated_skeleton humanoid undead
?! alternate_universe blue_eyes blush bodily_fluids bone caught_in_the_act collar dialogue duo ellipsis heart_symbol leash male male/male mistaken_identity not_furry red_eyes skeleton submissive submissive_male suggestive surprise sweat text nsfwshamecave underfell underswap undertale undertale_(series) papyrus_(underfell) sans_(underfell) sans_(underswap) animated_skeleton undead 3:5 comic english_text
?! alternate_universe blue_eyes blush bodily_fluids bone caught_in_the_act collar dialogue duo ellipsis heart_symbol leash male male/male mistaken_identity not_furry red_eyes skeleton submissive submissive_male suggestive surprise sweat text nsfwshamecave underfell underswap undertale undertale_(series) papyrus_(underfell) sans_(underfell) sans_(underswap) animated_skeleton undead 3:5 comic english_text
alternate_universe belt bone boots bottomwear brown_hair clothed clothing duo_focus footwear forest fully_clothed gloves group hair hand_in_pocket hands_in_both_pockets handwear jacket male not_furry outside pants plant pockets sharp_teeth shirt shoes short_hair shorts shrub side_view size_difference skeleton smile snow teeth topwear tree walking foxvulpine underfell undertale undertale_(series) flowey_the_flower papyrus_(underfell) protagonist_(underfell) sans_(underfell) animated_skeleton human mammal undead 2016 5:4
alternate_universe belt bone boots bottomwear brown_hair clothed clothing duo_focus footwear forest fully_clothed gloves group hair hand_in_pocket hands_in_both_pockets handwear jacket male not_furry outside pants plant pockets sharp_teeth shirt shoes short_hair shorts shrub side_view size_difference skeleton smile snow teeth topwear tree walking foxvulpine underfell undertale undertale_(series) flowey_the_flower papyrus_(underfell) protagonist_(underfell) sans_(underfell) animated_skeleton human mammal undead 2016 5:4
alternate_universe angry bone boots clothing duo footwear gloves handwear hoodie ice male not_furry paint paint_can red_clothing red_gloves red_handwear shoes skeleton smile text topwear rachel_yew_(artist) underfell undertale undertale_(series) fan_character papyrus_(underfell) sans_(underfell) animated_skeleton undead 2015 english_text
alternate_universe angry bone boots clothing duo footwear gloves handwear hoodie ice male not_furry paint paint_can red_clothing red_gloves red_handwear shoes skeleton smile text topwear rachel_yew_(artist) underfell undertale undertale_(series) fan_character papyrus_(underfell) sans_(underfell) animated_skeleton undead 2015 english_text
alternate_universe bone erection genitals male not_furry penis skeleton solo alkipunch underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead 5:4 hi_res
alternate_universe bone erection genitals male not_furry penis skeleton solo alkipunch underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead 5:4 hi_res
alternate_universe blush bone dialogue male male/male not_furry sex skeleton text unknown_artist underfell undertale undertale_(series) papyrus_(underfell) papyrus_(undertale) sans_(underfell) sans_(undertale) animated_skeleton monster undead comic english_text brother_(lore) brothers_(lore) incest_(lore) sibling_(lore)
alternate_universe blush bone dialogue male male/male not_furry sex skeleton text unknown_artist underfell undertale undertale_(series) papyrus_(underfell) papyrus_(undertale) sans_(underfell) sans_(undertale) animated_skeleton monster undead comic english_text brother_(lore) brothers_(lore) incest_(lore) sibling_(lore)
alternate_universe bone duo male not_furry skeleton foxvulpine underfell undertale undertale_(series) papyrus_(underfell) sans_(underfell) animated_skeleton undead 2016 5:4
alternate_universe bone duo male not_furry skeleton foxvulpine underfell undertale undertale_(series) papyrus_(underfell) sans_(underfell) animated_skeleton undead 2016 5:4
alternate_universe anterior_nasal_aperture bone clothed clothing crossed_arms front_view jacket male not_furry simple_background skeleton solo sweater teeth topwear white_background jazzycat underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead black_and_white monochrome
alternate_universe anterior_nasal_aperture bone clothed clothing crossed_arms front_view jacket male not_furry simple_background skeleton solo sweater teeth topwear white_background jazzycat underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead black_and_white monochrome
alternate_universe bdsm blood bodily_fluids bone male not_furry red_tongue skeleton solo tongue lizheru underfell undertale undertale_(series) sans_(underfell) sans_(undertale) animated_skeleton humanoid undead hi_res
alternate_universe bdsm blood bodily_fluids bone male not_furry red_tongue skeleton solo tongue lizheru underfell undertale undertale_(series) sans_(underfell) sans_(undertale) animated_skeleton humanoid undead hi_res
alternate_universe blood bodily_fluids bone genitals humanoid_genitalia humanoid_penis male not_furry penis red_penis red_tongue skeleton solo tongue lizheru underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead 1:1
alternate_universe blood bodily_fluids bone genitals humanoid_genitalia humanoid_penis male not_furry penis red_penis red_tongue skeleton solo tongue lizheru underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead 1:1
alternate_universe biped black_sclera blinking blush bodily_fluids bone brown_clothing brown_topwear chinese clenched_teeth clothed clothing front_view frown gold_(metal) gold_tooth hoodie looking_at_viewer looking_up male not_furry red_clothing red_eyes red_topwear sharp_teeth shirt simple_background skeleton solo standing sweat sweatdrop teeth thinking thoughtful_expression topwear undershirt white_background mitu_mao underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead 2017 2d_animation animated bust_portrait digital_drawing_(artwork) digital_media_(artwork) no_sound portrait short_playtime webm
alternate_universe biped black_sclera blinking blush bodily_fluids bone brown_clothing brown_topwear chinese clenched_teeth clothed clothing front_view frown gold_(metal) gold_tooth hoodie looking_at_viewer looking_up male not_furry red_clothing red_eyes red_topwear sharp_teeth shirt simple_background skeleton solo standing sweat sweatdrop teeth thinking thoughtful_expression topwear undershirt white_background mitu_mao underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead 2017 2d_animation animated bust_portrait digital_drawing_(artwork) digital_media_(artwork) no_sound portrait short_playtime webm
alternate_universe blush bone clothing heart_symbol kissing kissing_neck male not_furry question_mark skeleton surprise nsfwshamecave underfell underswap undertale undertale_(series) papyrus_(underfell) papyrus_(underswap) papyrus_(undertale) sans_(underfell) sans_(underswap) sans_(undertale) animated_skeleton humanoid undead 1:2 incest_(lore)
alternate_universe blush bone clothing heart_symbol kissing kissing_neck male not_furry question_mark skeleton surprise nsfwshamecave underfell underswap undertale undertale_(series) papyrus_(underfell) papyrus_(underswap) papyrus_(undertale) sans_(underfell) sans_(underswap) sans_(undertale) animated_skeleton humanoid undead 1:2 incest_(lore)
alternate_universe bone clothing dialogue jacket male not_furry one_eye_closed simple_background skeleton solo teeth text topwear white_background pastel-possum underfell undertale undertale_(series) sans_(underfell) animated_skeleton undead 2015 english_text
alternate_universe bone clothing dialogue jacket male not_furry one_eye_closed simple_background skeleton solo teeth text topwear white_background pastel-possum underfell undertale undertale_(series) sans_(underfell) animated_skeleton undead 2015 english_text
alternate_universe bone clothing duo footwear gold_(metal) gold_tooth male not_furry open_mouth shoes simple_background skeleton text white_background unknown_artist underfell undertale undertale_(series) papyrus_(underfell) sans_(underfell) animated_skeleton undead english_text
alternate_universe bone clothing duo footwear gold_(metal) gold_tooth male not_furry open_mouth shoes simple_background skeleton text white_background unknown_artist underfell undertale undertale_(series) papyrus_(underfell) sans_(underfell) animated_skeleton undead english_text
alternate_universe bone ellipsis male not_furry profanity skeleton solo text lizheru underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead english_text
alternate_universe bone ellipsis male not_furry profanity skeleton solo text lizheru underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead english_text
alternate_universe bodily_fluids bone clothed clothing duo hoodie male not_furry simple_background skeleton sweat topwear ahen3251 underfell undertale undertale_(series) sans_(underfell) sans_(undertale) animated_skeleton undead hi_res
alternate_universe bodily_fluids bone clothed clothing duo hoodie male not_furry simple_background skeleton sweat topwear ahen3251 underfell undertale undertale_(series) sans_(underfell) sans_(undertale) animated_skeleton undead hi_res
alternate_universe ambiguous_gender bone erection fellatio genitals group group_sex male male/ambiguous oral penile penis sex simple_background skeleton threesome trio alkipunch underfell undertale undertale_(series) muffet sans_(underfell) animal_humanoid animated_skeleton arachnid arachnid_humanoid arthropod arthropod_humanoid humanoid spider spider_humanoid undead 5:6 absurd_res hi_res
alternate_universe ambiguous_gender bone erection fellatio genitals group group_sex male male/ambiguous oral penile penis sex simple_background skeleton threesome trio alkipunch underfell undertale undertale_(series) muffet sans_(underfell) animal_humanoid animated_skeleton arachnid arachnid_humanoid arthropod arthropod_humanoid humanoid spider spider_humanoid undead 5:6 absurd_res hi_res
alternate_universe black_background bone brown_hair clothing dialogue duo eyes_closed grin hair not_furry question_mark red_eyes sharp_teeth simple_background skeleton smile teeth text white_background knocker12 underfell undertale undertale_(series) frisk_(undertale) protagonist_(underfell) sans_(underfell) animated_skeleton human humanoid mammal undead 2015 comic digital_media_(artwork) english_text
alternate_universe black_background bone brown_hair clothing dialogue duo eyes_closed grin hair not_furry question_mark red_eyes sharp_teeth simple_background skeleton smile teeth text white_background knocker12 underfell undertale undertale_(series) frisk_(undertale) protagonist_(underfell) sans_(underfell) animated_skeleton human humanoid mammal undead 2015 comic digital_media_(artwork) english_text
alternate_universe bone clothed clothing dialogue ellipsis grin jacket looking_at_viewer male not_furry open_clothing open_jacket open_topwear question_mark red_eyes simple_background skeleton smile solo teeth text topwear white_background pastel-possum underfell undertale undertale_(series) sans_(underfell) animated_skeleton undead 2015 english_text
alternate_universe bone clothed clothing dialogue ellipsis grin jacket looking_at_viewer male not_furry open_clothing open_jacket open_topwear question_mark red_eyes simple_background skeleton smile solo teeth text topwear white_background pastel-possum underfell undertale undertale_(series) sans_(underfell) animated_skeleton undead 2015 english_text
alternate_universe bone male not_furry skeleton text lizheru underfell underswap undertale undertale_(series) papyrus_(undertale) sans_(underfell) sans_(underswap) sans_(undertale) animated_skeleton undead english_text
alternate_universe bone male not_furry skeleton text lizheru underfell underswap undertale undertale_(series) papyrus_(undertale) sans_(underfell) sans_(underswap) sans_(undertale) animated_skeleton undead english_text
alternate_universe annoyed biped black_background black_sclera blush bone brown_clothing brown_topwear chinese clothed clothing front_view frown glowing glowing_eyes gold_(metal) gold_tooth gradient_background hands_behind_back hoodie jacket light looking_at_viewer male not_furry open_clothing open_jacket open_topwear orange_eyes red_background red_clothing red_topwear shadow sharp_teeth shirt simple_background skeleton solo standing teeth text topwear undershirt mitu_mao underfell undertale undertale_(series) sans_(underfell) sans_(undertale) animated_skeleton humanoid undead 2017 bad_metadata chinese_text digital_media_(artwork) half-length_portrait hi_res lighting missing_sample portrait translated
alternate_universe annoyed biped black_background black_sclera blush bone brown_clothing brown_topwear chinese clothed clothing front_view frown glowing glowing_eyes gold_(metal) gold_tooth gradient_background hands_behind_back hoodie jacket light looking_at_viewer male not_furry open_clothing open_jacket open_topwear orange_eyes red_background red_clothing red_topwear shadow sharp_teeth shirt simple_background skeleton solo standing teeth text topwear undershirt mitu_mao underfell undertale undertale_(series) sans_(underfell) sans_(undertale) animated_skeleton humanoid undead 2017 bad_metadata chinese_text digital_media_(artwork) half-length_portrait hi_res lighting missing_sample portrait translated
alternate_universe ambiguous_gender black_sclera bone bottomwear clothing fire flaming_tail footwear gold_(metal) gold_tooth jacket red_eyes shoes shorts simple_background skeleton smile sneakers solo sweater tail topwear white_background keksbela nintendo pokemon underfell undertale undertale_(series) sans_(underfell) animated_skeleton charmander generation_1_pokemon pokemon_(species) undead crossover hi_res watermark
alternate_universe ambiguous_gender black_sclera bone bottomwear clothing fire flaming_tail footwear gold_(metal) gold_tooth jacket red_eyes shoes shorts simple_background skeleton smile sneakers solo sweater tail topwear white_background keksbela nintendo pokemon underfell undertale undertale_(series) sans_(underfell) animated_skeleton charmander generation_1_pokemon pokemon_(species) undead crossover hi_res watermark
alternate_universe bodily_fluids bone clothed clothing gold_(metal) gold_tooth hoodie male not_furry sharp_teeth skeleton solo sweat teeth topwear marl-arts underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead alpha_channel
alternate_universe bodily_fluids bone clothed clothing gold_(metal) gold_tooth hoodie male not_furry sharp_teeth skeleton solo sweat teeth topwear marl-arts underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead alpha_channel
alternate_universe bone clothing dialogue looking_at_viewer male not_furry question_mark red_eyes simple_background skeleton solo teeth text white_background pastel-possum underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead 2015 english_text source_request
alternate_universe bone clothing dialogue looking_at_viewer male not_furry question_mark red_eyes simple_background skeleton solo teeth text white_background pastel-possum underfell undertale undertale_(series) sans_(underfell) animated_skeleton humanoid undead 2015 english_text source_request
alternate_universe bone group not_furry skeleton text lizheru underfell underswap undertale undertale_(series) papyrus_(underfell) papyrus_(underswap) papyrus_(undertale) sans_(underfell) sans_(underswap) sans_(undertale) animated_skeleton undead 1:1 english_text
alternate_universe bone group not_furry skeleton text lizheru underfell underswap undertale undertale_(series) papyrus_(underfell) papyrus_(underswap) papyrus_(undertale) sans_(underfell) sans_(underswap) sans_(undertale) animated_skeleton undead 1:1 english_text
alternate_universe anal anal_penetration balls bone duo genitals male male/male male_penetrated male_penetrating male_penetrating_male not_furry penetration penis sex skeleton tongue fatsanssins underfell underlust undertale undertale_(series) sans_(underfell) sans_(underlust) sans_(undertale) animated_skeleton humanoid undead hi_res
alternate_universe anal anal_penetration balls bone duo genitals male male/male male_penetrated male_penetrating male_penetrating_male not_furry penetration penis sex skeleton tongue fatsanssins underfell underlust undertale undertale_(series) sans_(underfell) sans_(underlust) sans_(undertale) animated_skeleton humanoid undead hi_res
alternate_universe black_sclera bone clothed clothing fully_clothed gans_(echotale) gloves group handwear kerchief not_furry plant rock skeleton snow star sweater topwear tree ckaitlyn cartoon_network dancetale inktale mafiatale steven_universe underfell underswap undertale undertale_(series) army_(steven_universe) doc_(steven_universe) eyeball_(steven_universe) leggy_(steven_universe) navy_(steven_universe) ruby_(steven_universe) sans_(mafiatale) sans_(underfell) sans_(underswap) sans_(undertale) alien alien_humanoid animated_skeleton gem_(species) humanoid ruby_(gem_species) undead crossover signature
alternate_universe black_sclera bone clothed clothing fully_clothed gans_(echotale) gloves group handwear kerchief not_furry plant rock skeleton snow star sweater topwear tree ckaitlyn cartoon_network dancetale inktale mafiatale steven_universe underfell underswap undertale undertale_(series) army_(steven_universe) doc_(steven_universe) eyeball_(steven_universe) leggy_(steven_universe) navy_(steven_universe) ruby_(steven_universe) sans_(mafiatale) sans_(underfell) sans_(underswap) sans_(undertale) alien alien_humanoid animated_skeleton gem_(species) humanoid ruby_(gem_species) undead crossover signature
alternate_universe ambiguous_gender bone clothing flower male plant red_eyes simple_background skeleton text white_background unknown_artist underfell undertale undertale_(series) flowey_the_flower flowey_the_flower_(underfell) frisk_(undertale) papyrus_(underfell) papyrus_(undertale) protagonist_(underfell) sans_(underfell) sans_(undertale) animated_skeleton elemental_creature flora_fauna human mammal undead comic english_text hi_res monochrome
alternate_universe ambiguous_gender bone clothing flower male plant red_eyes simple_background skeleton text white_background unknown_artist underfell undertale undertale_(series) flowey_the_flower flowey_the_flower_(underfell) frisk_(undertale) papyrus_(underfell) papyrus_(undertale) protagonist_(underfell) sans_(underfell) sans_(undertale) animated_skeleton elemental_creature flora_fauna human mammal undead comic english_text hi_res monochrome
alternate_universe blush bone cigarette clothed clothing group implied_incest looking_at_viewer male male/male not_furry red_eyes skeleton smile suggestive tongue lizheru underfell underswap undertale undertale_(series) papyrus_(underswap) sans_(underfell) sans_(underswap) animated_skeleton undead 1:1 incest_(lore)
alternate_universe blush bone cigarette clothed clothing group implied_incest looking_at_viewer male male/male not_furry red_eyes skeleton smile suggestive tongue lizheru underfell underswap undertale undertale_(series) papyrus_(underswap) sans_(underfell) sans_(underswap) animated_skeleton undead 1:1 incest_(lore)
alternate_universe bdsm bondage bone bound dominant dominant_male duo male male/male not_furry skeleton submissive submissive_male razinoats underfell underswap undertale undertale_(series) papyrus_(underfell) sans_(underfell) animated_skeleton undead hi_res incest_(lore)
alternate_universe bdsm bondage bone bound dominant dominant_male duo male male/male not_furry skeleton submissive submissive_male razinoats underfell underswap undertale undertale_(series) papyrus_(underfell) sans_(underfell) animated_skeleton undead hi_res incest_(lore)