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gaster (undertale)

5_fingers bone clothing fingers flower hieroglyphics not_furry plant poncho robe simple_background skeleton skull skull_head solo_focus text three-quarter_view weeping deltaruminations deltarune undertale undertale_(series) gaster animated_skeleton reptile scalie snake undead 2024 character_cipher colored digital_media_(artwork) hi_res latin_text translation_request wingdings_text
5_fingers bone clothing fingers flower hieroglyphics not_furry plant poncho robe simple_background skeleton skull skull_head solo_focus text three-quarter_view weeping deltaruminations deltarune undertale undertale_(series) gaster animated_skeleton reptile scalie snake undead 2024 character_cipher colored digital_media_(artwork) hi_res latin_text translation_request wingdings_text
bald black_body bodily_fluids clothed clothing curved_penis facial_markings genitals glistening glistening_body glistening_genitalia head_markings high-angle_view hole_in_hand holes_in_body male markings monotone_background partially_clothed penis shirt simple_background smile solo tapering_penis topwear undershirt white_background white_body kogito undertale undertale_(series) gaster humanoid absurd_res hi_res
bald black_body bodily_fluids clothed clothing curved_penis facial_markings genitals glistening glistening_body glistening_genitalia head_markings high-angle_view hole_in_hand holes_in_body male markings monotone_background partially_clothed penis shirt simple_background smile solo tapering_penis topwear undershirt white_background white_body kogito undertale undertale_(series) gaster humanoid absurd_res hi_res
4_fingers alternate_universe ambiguous_gender anthro biped black_background black_clothing black_footwear black_robe black_sclera black_shoes blue_background blue_bottomwear blue_clothing blue_pants bottomwear braided_hair brown_body brown_fur brown_hair buckteeth cable clothing duo eyelashes female fingers footwear fur gradient_background green_clothing green_jacket green_topwear hair humanoid_hands jacket long_hair long_neck long_tail open_mouth open_smile pants red_nose robe simple_background size_difference smile tail tan_clothing tan_shirt tan_topwear teeth topwear white_body white_eyes white_hood wide_eyed huecycles deltarune undertale undertale_(series) dess_holiday gaster deer mammal monster new_world_deer reindeer unknown_species 2024 cel_shading digital_drawing_(artwork) digital_media_(artwork) pixel_(artwork) shaded
4_fingers alternate_universe ambiguous_gender anthro biped black_background black_clothing black_footwear black_robe black_sclera black_shoes blue_background blue_bottomwear blue_clothing blue_pants bottomwear braided_hair brown_body brown_fur brown_hair buckteeth cable clothing duo eyelashes female fingers footwear fur gradient_background green_clothing green_jacket green_topwear hair humanoid_hands jacket long_hair long_neck long_tail open_mouth open_smile pants red_nose robe simple_background size_difference smile tail tan_clothing tan_shirt tan_topwear teeth topwear white_body white_eyes white_hood wide_eyed huecycles deltarune undertale undertale_(series) dess_holiday gaster deer mammal monster new_world_deer reindeer unknown_species 2024 cel_shading digital_drawing_(artwork) digital_media_(artwork) pixel_(artwork) shaded
4_fingers alternate_universe ambiguous_gender anthro biped black_background black_clothing black_footwear black_robe black_shoes blue_background blue_bottomwear blue_clothing blue_pants bottomwear braided_hair brown_body brown_fur brown_hair cable clothing duo female fingers footwear fur gradient_background green_clothing green_jacket green_topwear hair humanoid_hands jacket long_hair long_neck long_tail obscured_face pants robe simple_background size_difference tail tan_clothing tan_shirt tan_topwear topwear white_body white_hood huecycles deltarune undertale undertale_(series) dess_holiday gaster deer mammal monster new_world_deer reindeer unknown_species 2024 cel_shading digital_drawing_(artwork) digital_media_(artwork) pixel_(artwork) shaded
4_fingers alternate_universe ambiguous_gender anthro biped black_background black_clothing black_footwear black_robe black_shoes blue_background blue_bottomwear blue_clothing blue_pants bottomwear braided_hair brown_body brown_fur brown_hair cable clothing duo female fingers footwear fur gradient_background green_clothing green_jacket green_topwear hair humanoid_hands jacket long_hair long_neck long_tail obscured_face pants robe simple_background size_difference tail tan_clothing tan_shirt tan_topwear topwear white_body white_hood huecycles deltarune undertale undertale_(series) dess_holiday gaster deer mammal monster new_world_deer reindeer unknown_species 2024 cel_shading digital_drawing_(artwork) digital_media_(artwork) pixel_(artwork) shaded
alternate_universe ambiguous_gender anthro armor big_penis bone boxing_gloves cast clothed clothing crossdressing female femboy fire genitals group gynomorph handwear intersex larger_female larger_male lingerie machine male mature_female overweight penis short size_difference skeleton skinny small_penis swimwear tall training_dummy underwear wrestling_outfit dracozhilla deltarune underswap undertale undertale_(series) alphys alphys_(underswap) asgore_(underswap) asgore_dreemurr asriel_dreemurr bratty_(undertale) carol_holiday catty_(undertale) dess_holiday dummy_(undertale) gaster grillby grillby_(underswap) happstablook mad_mew_mew mettaton muffet muffet_(underswap) napstablook napstabot papyrus papyrus_(underswap) river_person_(undertale) sans_(underswap) scared_donut_guy shyren toriel toriel_(underswap) undyne undyne_(underswap) alligator alligatorid arachnid arthropod boss_monster_(undertale) canid canine crocodile crocodilian crocodylid deer felid fish ghost humanoid mammal marine new_world_deer reindeer reptile robot robot_humanoid scalie spider spirit absurd_res digital_media_(artwork) hi_res pixel_(artwork)
alternate_universe ambiguous_gender anthro armor big_penis bone boxing_gloves cast clothed clothing crossdressing female femboy fire genitals group gynomorph handwear intersex larger_female larger_male lingerie machine male mature_female overweight penis short size_difference skeleton skinny small_penis swimwear tall training_dummy underwear wrestling_outfit dracozhilla deltarune underswap undertale undertale_(series) alphys alphys_(underswap) asgore_(underswap) asgore_dreemurr asriel_dreemurr bratty_(undertale) carol_holiday catty_(undertale) dess_holiday dummy_(undertale) gaster grillby grillby_(underswap) happstablook mad_mew_mew mettaton muffet muffet_(underswap) napstablook napstabot papyrus papyrus_(underswap) river_person_(undertale) sans_(underswap) scared_donut_guy shyren toriel toriel_(underswap) undyne undyne_(underswap) alligator alligatorid arachnid arthropod boss_monster_(undertale) canid canine crocodile crocodilian crocodylid deer felid fish ghost humanoid mammal marine new_world_deer reindeer reptile robot robot_humanoid scalie spider spirit absurd_res digital_media_(artwork) hi_res pixel_(artwork)
anthro bone dark duo female laboratory male male/female ominous railing scientist skeleton text doomboy84 undertale undertale_(series) alphys gaster humanoid lizard reptile scalie digital_media_(artwork) digital_painting_(artwork) english_text translated
anthro bone dark duo female laboratory male male/female ominous railing scientist skeleton text doomboy84 undertale undertale_(series) alphys gaster humanoid lizard reptile scalie digital_media_(artwork) digital_painting_(artwork) english_text translated
abstract_background black_clothing bone broken_bone clothing high-angle_view looking_at_viewer male reaching_towards_viewer skeleton smile solo sweater topwear turtleneck doomboy84 undertale undertale_(series) gaster animated_skeleton humanoid undead digital_media_(artwork) digital_painting_(artwork) half-length_portrait hi_res portrait
abstract_background black_clothing bone broken_bone clothing high-angle_view looking_at_viewer male reaching_towards_viewer skeleton smile solo sweater topwear turtleneck doomboy84 undertale undertale_(series) gaster animated_skeleton humanoid undead digital_media_(artwork) digital_painting_(artwork) half-length_portrait hi_res portrait
ambiguous_gender bodily_fluids bone cloak clothed clothing crouching crowded earless eyewear face_hidden fire glasses_on_face gloves hand_on_chest handwear hidden_face hiding_face intimate kneeling looking_down male noseless not_furry simple_background sitting skeleton slacks sweat sweater topwear turtleneck vest white_background rizvague undertale undertale_(series) gaster grillby river_person_(undertale) animated_skeleton elemental_creature elemental_humanoid fire_creature fire_humanoid humanoid undead unknown_species 1:1 2024 digital_drawing_(artwork) digital_media_(artwork) hi_res
ambiguous_gender bodily_fluids bone cloak clothed clothing crouching crowded earless eyewear face_hidden fire glasses_on_face gloves hand_on_chest handwear hidden_face hiding_face intimate kneeling looking_down male noseless not_furry simple_background sitting skeleton slacks sweat sweater topwear turtleneck vest white_background rizvague undertale undertale_(series) gaster grillby river_person_(undertale) animated_skeleton elemental_creature elemental_humanoid fire_creature fire_humanoid humanoid undead unknown_species 1:1 2024 digital_drawing_(artwork) digital_media_(artwork) hi_res
ashes bone clothing dress_shirt duo embers eyeless eyewear faceless_character faceless_humanoid faceless_male fire floating_hands glasses_on_face male mouthless noseless reaching_towards_viewer shirt simple_background skeleton smile topwear unknown_liquid vest white_background midorisuiko undertale undertale_(series) gaster grillby animated_skeleton elemental_creature elemental_humanoid fire_creature fire_humanoid humanoid undead 16:9 2017 bust_portrait digital_drawing_(artwork) digital_media_(artwork) hi_res portrait widescreen
ashes bone clothing dress_shirt duo embers eyeless eyewear faceless_character faceless_humanoid faceless_male fire floating_hands glasses_on_face male mouthless noseless reaching_towards_viewer shirt simple_background skeleton smile topwear unknown_liquid vest white_background midorisuiko undertale undertale_(series) gaster grillby animated_skeleton elemental_creature elemental_humanoid fire_creature fire_humanoid humanoid undead 16:9 2017 bust_portrait digital_drawing_(artwork) digital_media_(artwork) hi_res portrait widescreen
bar bar_stool bone booth_seating bottle butler clothed clothing coat container cup drinking_glass duo fire furniture glass glass_container glass_cup glasses_on_face noseless not_furry sconce sitting skeleton smile standing stool sweater topwear trenchcoat tumbler turtleneck vest wine_glass accoffee7 undertale undertale_(series) gaster grillby amalgamate animated_skeleton elemental_creature elemental_humanoid fire_creature fire_humanoid humanoid undead 2024 artist_name detailed digital_media_(artwork) digital_painting_(artwork) hi_res signature
bar bar_stool bone booth_seating bottle butler clothed clothing coat container cup drinking_glass duo fire furniture glass glass_container glass_cup glasses_on_face noseless not_furry sconce sitting skeleton smile standing stool sweater topwear trenchcoat tumbler turtleneck vest wine_glass accoffee7 undertale undertale_(series) gaster grillby amalgamate animated_skeleton elemental_creature elemental_humanoid fire_creature fire_humanoid humanoid undead 2024 artist_name detailed digital_media_(artwork) digital_painting_(artwork) hi_res signature
ascot asian_clothing bodily_fluids bone bottomwear breasts chinese_clothing chinese_dress cigarette cleavage clothed clothing clutch_(bag) denim denim_bottomwear denim_clothing dress duo east_asian_clothing embarrassed eyewear female footwear glasses glasses_on_face high_heels jeans male pants platform_footwear provocative_clothing purse shirt shoes shy simple_background skeleton sleeveless smile smoking smoking_cigarette social_media speech_bubble sweat tail text topwear v-neck white_background yellow_body deltaruminations undertale undertale_(series) alphys gaster animal_humanoid animated_skeleton dinosaur_humanoid humanoid lizard monster reptile reptile_humanoid scalie scalie_humanoid undead 2023 colored comic digital_drawing_(artwork) digital_media_(artwork) english_text flat_colors hi_res
ascot asian_clothing bodily_fluids bone bottomwear breasts chinese_clothing chinese_dress cigarette cleavage clothed clothing clutch_(bag) denim denim_bottomwear denim_clothing dress duo east_asian_clothing embarrassed eyewear female footwear glasses glasses_on_face high_heels jeans male pants platform_footwear provocative_clothing purse shirt shoes shy simple_background skeleton sleeveless smile smoking smoking_cigarette social_media speech_bubble sweat tail text topwear v-neck white_background yellow_body deltaruminations undertale undertale_(series) alphys gaster animal_humanoid animated_skeleton dinosaur_humanoid humanoid lizard monster reptile reptile_humanoid scalie scalie_humanoid undead 2023 colored comic digital_drawing_(artwork) digital_media_(artwork) english_text flat_colors hi_res
bone bottomwear clothed clothing cutoffs denim denim_bottomwear denim_clothing embarrassed excited eyewear fangirl female footwear glasses glasses_on_face hotpants male provocative_clothing shoes shorts shy skeleton small_shirt sneakers social_media text deltaruminations undertale undertale_(series) alphys gaster animal_humanoid animated_skeleton dinosaur_humanoid humanoid lizard monster reptile reptile_humanoid scalie scalie_humanoid undead 2023 colored comic digital_drawing_(artwork) digital_media_(artwork) english_text flat_colors hi_res
bone bottomwear clothed clothing cutoffs denim denim_bottomwear denim_clothing embarrassed excited eyewear fangirl female footwear glasses glasses_on_face hotpants male provocative_clothing shoes shorts shy skeleton small_shirt sneakers social_media text deltaruminations undertale undertale_(series) alphys gaster animal_humanoid animated_skeleton dinosaur_humanoid humanoid lizard monster reptile reptile_humanoid scalie scalie_humanoid undead 2023 colored comic digital_drawing_(artwork) digital_media_(artwork) english_text flat_colors hi_res
armor barefoot black_bottomwear black_clothing black_pants black_robe black_sclera blue_bottomwear blue_clothing blue_jacket blue_shorts blue_topwear bone boots bottomwear cape clothed clothing cracked_skull cracks dancing eyebrows eyes_closed feet finger_gun footwear gesture gloves green_boots green_clothing green_footwear green_gloves green_handwear grey_hair group hair hand_gesture hand_on_hip hand_on_own_hip handwear jacket larger_male long_hair male no_pupils pale_skin pants purple_background raised_arms raised_finger raised_index_finger red_boots red_cape red_clothing red_footwear red_gloves red_handwear robe shadow shoes short_pants shorts simple_background size_difference skeleton smaller_male smile sparkles standing text text_box thin_calves thin_legs thin_thighs topwear white_body chacochilla fear_and_hunger undertale undertale_(series) enki_(fear_&_hunger) gaster papyrus_(undertale) sans_(undertale) animated_skeleton human humanoid mammal monster undead 2024 absurd_res colored crossover digital_media_(artwork) english_text hi_res pixel_(artwork) shaded
armor barefoot black_bottomwear black_clothing black_pants black_robe black_sclera blue_bottomwear blue_clothing blue_jacket blue_shorts blue_topwear bone boots bottomwear cape clothed clothing cracked_skull cracks dancing eyebrows eyes_closed feet finger_gun footwear gesture gloves green_boots green_clothing green_footwear green_gloves green_handwear grey_hair group hair hand_gesture hand_on_hip hand_on_own_hip handwear jacket larger_male long_hair male no_pupils pale_skin pants purple_background raised_arms raised_finger raised_index_finger red_boots red_cape red_clothing red_footwear red_gloves red_handwear robe shadow shoes short_pants shorts simple_background size_difference skeleton smaller_male smile sparkles standing text text_box thin_calves thin_legs thin_thighs topwear white_body chacochilla fear_and_hunger undertale undertale_(series) enki_(fear_&_hunger) gaster papyrus_(undertale) sans_(undertale) animated_skeleton human humanoid mammal monster undead 2024 absurd_res colored crossover digital_media_(artwork) english_text hi_res pixel_(artwork) shaded
2_horns 4_fingers :3 abuse annoyed anthro antlers appliance barefoot black_bottomwear black_clothing black_eyes black_skirt blinking blonde_hair bottomwear brown_body brown_fur bruised clothed clothing crescent_moon damage_numbers door duo_focus eyebrows eyes_closed eyewear feet female fingers food freckles fridge fully_clothed fur gameplay_mechanics gesture glasses grin group hair hand_gesture holding_pan home_invasion horn hot_dog humor innuendo kitchen_appliance male many_teeth moon music open_:3 pointing pointing_at_another profanity pupils recording red_nose red_tongue round_glasses running skirt sleeping smile smug sound_effects standing surprise teeth thin_calves tongue violence vowelless vowelless_sound_effect walking white_pupils wide_eyed x_eyes zzz asepriterico creepypasta deltarune mf_doom undertale undertale_(series) gaster noelle_holiday slenderman deer domestic_cat felid feline felis mammal new_world_deer reindeer 2024 2d_animation aliasing animated digital_media_(artwork) meme pixel_(artwork) pixel_animation short_playtime sound voice_acted webm
2_horns 4_fingers :3 abuse annoyed anthro antlers appliance barefoot black_bottomwear black_clothing black_eyes black_skirt blinking blonde_hair bottomwear brown_body brown_fur bruised clothed clothing crescent_moon damage_numbers door duo_focus eyebrows eyes_closed eyewear feet female fingers food freckles fridge fully_clothed fur gameplay_mechanics gesture glasses grin group hair hand_gesture holding_pan home_invasion horn hot_dog humor innuendo kitchen_appliance male many_teeth moon music open_:3 pointing pointing_at_another profanity pupils recording red_nose red_tongue round_glasses running skirt sleeping smile smug sound_effects standing surprise teeth thin_calves tongue violence vowelless vowelless_sound_effect walking white_pupils wide_eyed x_eyes zzz asepriterico creepypasta deltarune mf_doom undertale undertale_(series) gaster noelle_holiday slenderman deer domestic_cat felid feline felis mammal new_world_deer reindeer 2024 2d_animation aliasing animated digital_media_(artwork) meme pixel_(artwork) pixel_animation short_playtime sound voice_acted webm
alternate_universe amazing_background angry binder_(restraint) bindings bone bound detailed_background duo examination_table floating_hands hands_tied high-angle_view laboratory lying lying_on_table machine male nude on_back operating_table restraining_table restraints science skeleton solo_focus text thin_calves thin_legs thin_thighs torture watermarked_at_source virzoeve_(artist) handplates_(undertale) undertale undertale_(series) gaster sans_(undertale) animated_skeleton humanoid undead experiment_(disambiguation) 2017 character_cipher detailed digital_media_(artwork) hi_res intralingual_translation wingdings_text
alternate_universe amazing_background angry binder_(restraint) bindings bone bound detailed_background duo examination_table floating_hands hands_tied high-angle_view laboratory lying lying_on_table machine male nude on_back operating_table restraining_table restraints science skeleton solo_focus text thin_calves thin_legs thin_thighs torture watermarked_at_source virzoeve_(artist) handplates_(undertale) undertale undertale_(series) gaster sans_(undertale) animated_skeleton humanoid undead experiment_(disambiguation) 2017 character_cipher detailed digital_media_(artwork) hi_res intralingual_translation wingdings_text
arm_around_back bone clothed clothing container cup duo eyewear fire floating_hands fully_clothed glass glass_container glass_cup glasses gloves glowing glowing_eyes hand_holding hand_on_chest handwear holding_eyewear holding_glasses holding_object humanoid_hands leaning_on_another male male/male multiple_hands noseless rib_cage side_view simple_background skeleton smile text walking_fingers watermarked_at_source reignbeaux13 undertale undertale_(series) gaster grillby animated_skeleton humanoid undead 2023 colored digital_media_(artwork) hi_res japanese_text watermark
arm_around_back bone clothed clothing container cup duo eyewear fire floating_hands fully_clothed glass glass_container glass_cup glasses gloves glowing glowing_eyes hand_holding hand_on_chest handwear holding_eyewear holding_glasses holding_object humanoid_hands leaning_on_another male male/male multiple_hands noseless rib_cage side_view simple_background skeleton smile text walking_fingers watermarked_at_source reignbeaux13 undertale undertale_(series) gaster grillby animated_skeleton humanoid undead 2023 colored digital_media_(artwork) hi_res japanese_text watermark
bone bow_tie clothing container cup drinking_glass duo fire floating_hands glass glass_container glass_cup glasses_on_face gloves glowing glowing_eyes hands_behind_back handwear humanoid_hands male male/male multiple_hands noseless rib_cage simple_background skeleton smile tumbler watermarked_at_source reignbeaux13 undertale undertale_(series) gaster grillby animated_skeleton humanoid undead hi_res watermark
bone bow_tie clothing container cup drinking_glass duo fire floating_hands glass glass_container glass_cup glasses_on_face gloves glowing glowing_eyes hands_behind_back handwear humanoid_hands male male/male multiple_hands noseless rib_cage simple_background skeleton smile tumbler watermarked_at_source reignbeaux13 undertale undertale_(series) gaster grillby animated_skeleton humanoid undead hi_res watermark
angry annoyed anthro balls big_penis blush blush_lines bottomless bottomless_human bottomless_male clothed clothing duo embarrassed erection female flustered genitals hair hair_over_eye hair_over_eyes humanoid_genitalia humanoid_penis long_hair looking_at_another looking_at_genitalia looking_at_penis male male/female one_eye_obstructed open_mouth penis presenting presenting_penis sharp_teeth sitting snout speech_bubble spread_legs spreading sweater teeth text tongue topwear yelling yelling_at_another marmaladedoodles_(artist) deltarune undertale undertale_(series) gaster kris_(deltarune) susie_(deltarune) w.d_gaster human humanoid mammal reptile scalie 1:1 greyscale low_res monochrome sketch
angry annoyed anthro balls big_penis blush blush_lines bottomless bottomless_human bottomless_male clothed clothing duo embarrassed erection female flustered genitals hair hair_over_eye hair_over_eyes humanoid_genitalia humanoid_penis long_hair looking_at_another looking_at_genitalia looking_at_penis male male/female one_eye_obstructed open_mouth penis presenting presenting_penis sharp_teeth sitting snout speech_bubble spread_legs spreading sweater teeth text tongue topwear yelling yelling_at_another marmaladedoodles_(artist) deltarune undertale undertale_(series) gaster kris_(deltarune) susie_(deltarune) w.d_gaster human humanoid mammal reptile scalie 1:1 greyscale low_res monochrome sketch
4_fingers :| anthro bell binoculars biped black_text bodily_fluids bow_ribbon buckteeth car clothed clothed_anthro clothed_female clothing coat corrugated_arms corrugation dialogue eye_patch eyebrow_through_hair eyebrows eyelashes eyewear fangs female female_anthro fin fingers front_view gills glasses group hair hair_over_eye head_fin inside_car jingle_bell lab_coat looking_at_another looking_through_binoculars machine male male_humanoid neck_gills noseless one_eye_obstructed open_mouth pigtails plushie ponytail prick_ears question_mark rectangular_glasses ribbons scales shitpost sitting speech_bubble standing sweat teeth text topwear translucent translucent_hair unimpressed vehicle what wide_eyed yelling grappodango absolutenutcase162 undertale undertale_(series) alphys gaster mettaton_ex mew_mew_(undertale) undyne android animal_humanoid animate_inanimate cat_humanoid felid felid_humanoid feline feline_humanoid fish fish_humanoid humanoid living_plushie lizard mammal mammal_humanoid marine marine_humanoid reptile robot scalie 2024 black_and_white comic compression_artifacts digital_drawing_(artwork) digital_media_(artwork) english_text hi_res meme monochrome redraw nonbinary_(lore)
4_fingers :| anthro bell binoculars biped black_text bodily_fluids bow_ribbon buckteeth car clothed clothed_anthro clothed_female clothing coat corrugated_arms corrugation dialogue eye_patch eyebrow_through_hair eyebrows eyelashes eyewear fangs female female_anthro fin fingers front_view gills glasses group hair hair_over_eye head_fin inside_car jingle_bell lab_coat looking_at_another looking_through_binoculars machine male male_humanoid neck_gills noseless one_eye_obstructed open_mouth pigtails plushie ponytail prick_ears question_mark rectangular_glasses ribbons scales shitpost sitting speech_bubble standing sweat teeth text topwear translucent translucent_hair unimpressed vehicle what wide_eyed yelling grappodango absolutenutcase162 undertale undertale_(series) alphys gaster mettaton_ex mew_mew_(undertale) undyne android animal_humanoid animate_inanimate cat_humanoid felid felid_humanoid feline feline_humanoid fish fish_humanoid humanoid living_plushie lizard mammal mammal_humanoid marine marine_humanoid reptile robot scalie 2024 black_and_white comic compression_artifacts digital_drawing_(artwork) digital_media_(artwork) english_text hi_res meme monochrome redraw nonbinary_(lore)
2_horns anthro balancing black_boots black_clothing black_footwear black_liquid black_spandex blonde_hair blue_hair bone boots clothing cosplay costume crossover_cosplay female footwear group hair hole_(anatomy) horn jumping male mask motion_lines pattern_background purple_hair purple_spandex red_nose shoes short_tail simple_background skeleton spandex superhero superhero_costume tail text tight_clothing y2k_(graphic_design) ditchu deltarune marvel spider-man_(series) undertale undertale_(series) gaster kris_(deltarune) noelle_holiday susie_(deltarune) deer human mammal reptile scalie 2023 colored colorful_theme crossover digital_media_(artwork) english_text hi_res pixel_(artwork) signature
2_horns anthro balancing black_boots black_clothing black_footwear black_liquid black_spandex blonde_hair blue_hair bone boots clothing cosplay costume crossover_cosplay female footwear group hair hole_(anatomy) horn jumping male mask motion_lines pattern_background purple_hair purple_spandex red_nose shoes short_tail simple_background skeleton spandex superhero superhero_costume tail text tight_clothing y2k_(graphic_design) ditchu deltarune marvel spider-man_(series) undertale undertale_(series) gaster kris_(deltarune) noelle_holiday susie_(deltarune) deer human mammal reptile scalie 2023 colored colorful_theme crossover digital_media_(artwork) english_text hi_res pixel_(artwork) signature
anthro anthro_penetrated anus big_dom_small_sub black_sclera blush bodily_fluids bone bow_underwear breasts butt butt_grab clothing dialogue distracted_sex dominant duo electronics emanata eyewear eyewear_on_head fake_cat_ears fake_ears female female_penetrated floating_hands footwear footwear_only from_behind_position fucked_silly genital_fluids genitals glasses glasses_on_head gradient_penis green_background hand_on_butt heart_symbol humanoid_genitalia humanoid_penis kissing leaning_over looking_pleasured male male/female male_penetrating male_penetrating_anthro male_penetrating_female mostly_nude motion_lines navel one_tooth onomatopoeia penetration penile penile_penetration penis penis_in_pussy pink_clothing pink_footwear pink_socks plushie pupils pussy sex simple_background sitting size_difference skeleton slam small_breasts small_tail snaggle_tooth socks socks_only sound_effects spread_legs spreading surprise sweat table_sex tail talking_to_another television text tongue underwear vaginal vaginal_fluids vaginal_penetration white_body white_clothing white_penis white_pupils white_skin white_text white_underwear yellow_body yellow_skin teebsly mew_mew_kissy_cutie undertale undertale_(series) alphys gaster mew_mew_(undertale) animated_skeleton humanoid lizard reptile scalie undead 2023 2:3 artist_name character_cipher digital_media_(artwork) english_text flat_colors hi_res sequence wingdings_text
anthro anthro_penetrated anus big_dom_small_sub black_sclera blush bodily_fluids bone bow_underwear breasts butt butt_grab clothing dialogue distracted_sex dominant duo electronics emanata eyewear eyewear_on_head fake_cat_ears fake_ears female female_penetrated floating_hands footwear footwear_only from_behind_position fucked_silly genital_fluids genitals glasses glasses_on_head gradient_penis green_background hand_on_butt heart_symbol humanoid_genitalia humanoid_penis kissing leaning_over looking_pleasured male male/female male_penetrating male_penetrating_anthro male_penetrating_female mostly_nude motion_lines navel one_tooth onomatopoeia penetration penile penile_penetration penis penis_in_pussy pink_clothing pink_footwear pink_socks plushie pupils pussy sex simple_background sitting size_difference skeleton slam small_breasts small_tail snaggle_tooth socks socks_only sound_effects spread_legs spreading surprise sweat table_sex tail talking_to_another television text tongue underwear vaginal vaginal_fluids vaginal_penetration white_body white_clothing white_penis white_pupils white_skin white_text white_underwear yellow_body yellow_skin teebsly mew_mew_kissy_cutie undertale undertale_(series) alphys gaster mew_mew_(undertale) animated_skeleton humanoid lizard reptile scalie undead 2023 2:3 artist_name character_cipher digital_media_(artwork) english_text flat_colors hi_res sequence wingdings_text
ambiguous_gender anthro bone clothed clothing female flower male plant skeleton text nelnal undertale undertale_(series) alphys annoying_dog_(undertale) asgore_dreemurr asriel_dreemurr_(god_form) dummy_(undertale) flowey_the_flower frisk_(undertale) gaster mettaton mettaton_ex monster_kid muffet napstablook papyrus_(undertale) sans_(undertale) toriel undyne animal_humanoid animated_skeleton arachnid arthropod boss_monster_(undertale) bovid caprine elemental_creature fish fish_humanoid flora_fauna flower_creature ghost human humanoid lizard mammal marine marine_humanoid reptile scalie spider spirit undead 2020 absurd_res digital_drawing_(artwork) digital_media_(artwork) english_text hi_res
ambiguous_gender anthro bone clothed clothing female flower male plant skeleton text nelnal undertale undertale_(series) alphys annoying_dog_(undertale) asgore_dreemurr asriel_dreemurr_(god_form) dummy_(undertale) flowey_the_flower frisk_(undertale) gaster mettaton mettaton_ex monster_kid muffet napstablook papyrus_(undertale) sans_(undertale) toriel undyne animal_humanoid animated_skeleton arachnid arthropod boss_monster_(undertale) bovid caprine elemental_creature fish fish_humanoid flora_fauna flower_creature ghost human humanoid lizard mammal marine marine_humanoid reptile scalie spider spirit undead 2020 absurd_res digital_drawing_(artwork) digital_media_(artwork) english_text hi_res
2_horns ambiguous_gender anthro backwards_hat ball basketball basketball_(ball) basketball_court basketball_hoop black_border black_eyes blue_body blue_skin bone border brown_hair closed_smile clothed clothing eye_patch eyes_closed eyewear female feral fin floppy_ears fur glistening glistening_hair group hair hair_over_eyes hat head_fin head_spikes headgear headwear holding_basketball horn long_nose long_tail machine male mouth_closed open_mouth open_smile poker_face ponytail pupils quadruped red_hair sharp_teeth short_hair skeleton smile spikes spikes_(anatomy) sport standing style_emulation tail teeth teeth_showing white_body white_ears white_fur white_horn yellow_body yellow_sclera yellow_skin yellow_tail yellow_teeth bluestickboi deltarune undertale undertale_(series) annoying_dog_(undertale) frisk_(undertale) gaster kris_(deltarune) mettaton monster_kid papyrus_(undertale) sans_(undertale) spamton_g._spamton toriel undyne animated_skeleton boss_monster_(undertale) bovid canid canine canis caprine darkner domestic_dog fish goat human mammal marine monster robot undead artist_name crossover digital_media_(artwork) hi_res watermark
2_horns ambiguous_gender anthro backwards_hat ball basketball basketball_(ball) basketball_court basketball_hoop black_border black_eyes blue_body blue_skin bone border brown_hair closed_smile clothed clothing eye_patch eyes_closed eyewear female feral fin floppy_ears fur glistening glistening_hair group hair hair_over_eyes hat head_fin head_spikes headgear headwear holding_basketball horn long_nose long_tail machine male mouth_closed open_mouth open_smile poker_face ponytail pupils quadruped red_hair sharp_teeth short_hair skeleton smile spikes spikes_(anatomy) sport standing style_emulation tail teeth teeth_showing white_body white_ears white_fur white_horn yellow_body yellow_sclera yellow_skin yellow_tail yellow_teeth bluestickboi deltarune undertale undertale_(series) annoying_dog_(undertale) frisk_(undertale) gaster kris_(deltarune) mettaton monster_kid papyrus_(undertale) sans_(undertale) spamton_g._spamton toriel undyne animated_skeleton boss_monster_(undertale) bovid canid canine canis caprine darkner domestic_dog fish goat human mammal marine monster robot undead artist_name crossover digital_media_(artwork) hi_res watermark
5_fingers adolescent angry anthro apocalypse axe bangs black_sclera blonde_hair blood blue_body blue_eyes blue_skin bodily_fluids bone bottomwear breasts brown_body brown_fur brown_hair buckteeth clenched_teeth clothed clothing crying dark_hair delta_rune_(emblem) duo eyewear female fingers floppy_ears footwear freckles frown fully_clothed fur glasses group hair heart_(marking) heart_locket hole_(anatomy) hole_in_chest hopelessness horn horrified horror_(expression) hug hugging_another hugging_from_behind jacket jewelry kneeling landscape landscape_background light light_beam looking_up macro male marching markings micro mountain open_mouth orange_eyes parody pendant pink_eyes plant purple_body purple_skin raising_arm red_eyes red_nose running sad scared scared_face scarf shadow shirt shoes skeleton skirt smile smoke solo soul spikes spikes_(anatomy) spread_arms sunbeam sunlight sweater symbol tears teeth terrifying text topwear tree trio white_body white_clothing white_fur white_shirt white_topwear wide_eyed wounded yellow_sclera young young_anthro young_female young_human young_male yukimura4 attack_on_titan deltarune undertale undertale_(series) gaster kris_(deltarune) noelle_holiday ralsei susie_(deltarune) titan_(deltarune) bovid caprine darkner deer goat human humanoid lizard mammal new_world_deer reindeer reptile scalie titan_(attack_on_titan) absurd_res colored crossover english_text hi_res lighting long_image shaded tall_image
5_fingers adolescent angry anthro apocalypse axe bangs black_sclera blonde_hair blood blue_body blue_eyes blue_skin bodily_fluids bone bottomwear breasts brown_body brown_fur brown_hair buckteeth clenched_teeth clothed clothing crying dark_hair delta_rune_(emblem) duo eyewear female fingers floppy_ears footwear freckles frown fully_clothed fur glasses group hair heart_(marking) heart_locket hole_(anatomy) hole_in_chest hopelessness horn horrified horror_(expression) hug hugging_another hugging_from_behind jacket jewelry kneeling landscape landscape_background light light_beam looking_up macro male marching markings micro mountain open_mouth orange_eyes parody pendant pink_eyes plant purple_body purple_skin raising_arm red_eyes red_nose running sad scared scared_face scarf shadow shirt shoes skeleton skirt smile smoke solo soul spikes spikes_(anatomy) spread_arms sunbeam sunlight sweater symbol tears teeth terrifying text topwear tree trio white_body white_clothing white_fur white_shirt white_topwear wide_eyed wounded yellow_sclera young young_anthro young_female young_human young_male yukimura4 attack_on_titan deltarune undertale undertale_(series) gaster kris_(deltarune) noelle_holiday ralsei susie_(deltarune) titan_(deltarune) bovid caprine darkner deer goat human humanoid lizard mammal new_world_deer reindeer reptile scalie titan_(attack_on_titan) absurd_res colored crossover english_text hi_res lighting long_image shaded tall_image
bed bone clothing furniture male sad shirt skeleton sleeping topwear lotusthekat undertale undertale_(series) gaster papyrus_(undertale) sans_(undertale) animated_skeleton humanoid undead absurd_res comic hi_res
bed bone clothing furniture male sad shirt skeleton sleeping topwear lotusthekat undertale undertale_(series) gaster papyrus_(undertale) sans_(undertale) animated_skeleton humanoid undead absurd_res comic hi_res
ambiguous_gender bone book bottomwear clothing dialogue female furniture group hair horn hug lamp male pants skeleton sleeping sofa sound_effects speech_bubble text tired vowelless vowelless_sound_effect zzz lotusthekat undertale undertale_(series) frisk_(undertale) gaster papyrus_(undertale) sans_(undertale) toriel animated_skeleton bovid caprine goat human humanoid mammal undead absurd_res comic english_text hi_res huge_filesize
ambiguous_gender bone book bottomwear clothing dialogue female furniture group hair horn hug lamp male pants skeleton sleeping sofa sound_effects speech_bubble text tired vowelless vowelless_sound_effect zzz lotusthekat undertale undertale_(series) frisk_(undertale) gaster papyrus_(undertale) sans_(undertale) toriel animated_skeleton bovid caprine goat human humanoid mammal undead absurd_res comic english_text hi_res huge_filesize
ambiguous_gender bone bottomwear clothed clothing dialogue furniture group male not_furry_focus pants shirt skeleton sleeping sofa sound_effects speech_bubble text tired topwear vowelless vowelless_sound_effect zzz lotusthekat undertale undertale_(series) frisk_(undertale) gaster papyrus_(undertale) sans_(undertale) animated_skeleton human humanoid mammal undead absurd_res comic english_text hi_res
ambiguous_gender bone bottomwear clothed clothing dialogue furniture group male not_furry_focus pants shirt skeleton sleeping sofa sound_effects speech_bubble text tired topwear vowelless vowelless_sound_effect zzz lotusthekat undertale undertale_(series) frisk_(undertale) gaster papyrus_(undertale) sans_(undertale) animated_skeleton human humanoid mammal undead absurd_res comic english_text hi_res
anthro blush bone breast_grab breasts clothing dialogue duo eyewear fake_cat_ears fake_ears female fingering fingering_partner gaming genitals glasses hand_on_breast humanoid_on_anthro larger_male male male/female nipple_fetish nipple_pinch nipple_play overweight panties pinch playing_video_game plushie pussy sex size_difference skeleton smaller_female surprise text toony underwear vaginal vaginal_fingering teebsly mew_mew_kissy_cutie undertale undertale_(series) alphys gaster mew_mew_(undertale) animated_skeleton humanoid lizard reptile scalie undead character_cipher english_text hi_res translated wingdings_text
anthro blush bone breast_grab breasts clothing dialogue duo eyewear fake_cat_ears fake_ears female fingering fingering_partner gaming genitals glasses hand_on_breast humanoid_on_anthro larger_male male male/female nipple_fetish nipple_pinch nipple_play overweight panties pinch playing_video_game plushie pussy sex size_difference skeleton smaller_female surprise text toony underwear vaginal vaginal_fingering teebsly mew_mew_kissy_cutie undertale undertale_(series) alphys gaster mew_mew_(undertale) animated_skeleton humanoid lizard reptile scalie undead character_cipher english_text hi_res translated wingdings_text
black_clothing black_robe bone clothing creepy front_view grey_eyes hole_(anatomy) long_fingers looking_at_viewer robe simple_background skeleton torn_clothing white_background white_body havesomemoore undertale undertale_(series) gaster w.d_gaster animated_skeleton humanoid spirit undead flat_colors monochrome portrait
black_clothing black_robe bone clothing creepy front_view grey_eyes hole_(anatomy) long_fingers looking_at_viewer robe simple_background skeleton torn_clothing white_background white_body havesomemoore undertale undertale_(series) gaster w.d_gaster animated_skeleton humanoid spirit undead flat_colors monochrome portrait
anthro anthro_penetrated anus beaker belly bent_over black_sclera blue_eyes blush bodily_fluids bone breasts butt butt_grab clothed clothing coat duo erection eyes_closed eyewear eyewear_only female female_penetrated flustered glasses glasses_only hand_on_butt humanoid_on_anthro humanoid_penetrating humanoid_penetrating_anthro lab_coat laboratory_equipment laboratory_glassware looking_at_another looking_at_partner male male/female male_penetrating male_penetrating_anthro male_penetrating_female nipples non-mammal_breasts non-mammal_nipples nude penetration penile penile_penetration penis_in_pussy scales scientific_instrument sex size_difference skeleton slightly_chubby slightly_chubby_anthro slightly_chubby_female small_breasts sweat tail thick_tail toony topwear vaginal vaginal_penetration wearing_glasses white_body white_eyes yellow_body yellow_scales teebsly undertale undertale_(series) alphys gaster animated_skeleton humanoid lizard reptile scalie undead
anthro anthro_penetrated anus beaker belly bent_over black_sclera blue_eyes blush bodily_fluids bone breasts butt butt_grab clothed clothing coat duo erection eyes_closed eyewear eyewear_only female female_penetrated flustered glasses glasses_only hand_on_butt humanoid_on_anthro humanoid_penetrating humanoid_penetrating_anthro lab_coat laboratory_equipment laboratory_glassware looking_at_another looking_at_partner male male/female male_penetrating male_penetrating_anthro male_penetrating_female nipples non-mammal_breasts non-mammal_nipples nude penetration penile penile_penetration penis_in_pussy scales scientific_instrument sex size_difference skeleton slightly_chubby slightly_chubby_anthro slightly_chubby_female small_breasts sweat tail thick_tail toony topwear vaginal vaginal_penetration wearing_glasses white_body white_eyes yellow_body yellow_scales teebsly undertale undertale_(series) alphys gaster animated_skeleton humanoid lizard reptile scalie undead
1boy 1girl 2020s 2023 2d 2d_(artwork) animated_skeleton artist_name artist_watermark blue_breasts blue_nipples blue_tongue bottom_sans breasts clothed clothed_male clothing cum cum_on_face digital_media_(artwork) duo ech7474 ectopenis female_sans gaster gaster_(undertale) genderswap genderswap_(mtf) genitals gloves hooded_jacket hoodie jacket licking licking_face licking_penis male male/female monster multiple_views nipples nude off_shoulder orange_penis paizuri penis purple_background rule_63 sans sans_(undertale) sanster seme_gaster sex simple_background skeleton solid_color_background sweater tears top_gaster twitter uke_sans undead undertale undertale_(series) video_game_character video_games watermark white_gloves
1boy 1girl 2020s 2023 2d 2d_(artwork) animated_skeleton artist_name artist_watermark blue_breasts blue_nipples blue_tongue bottom_sans breasts clothed clothed_male clothing cum cum_on_face digital_media_(artwork) duo ech7474 ectopenis female_sans gaster gaster_(undertale) genderswap genderswap_(mtf) genitals gloves hooded_jacket hoodie jacket licking licking_face licking_penis male male/female monster multiple_views nipples nude off_shoulder orange_penis paizuri penis purple_background rule_63 sans sans_(undertale) sanster seme_gaster sex simple_background skeleton solid_color_background sweater tears top_gaster twitter uke_sans undead undertale undertale_(series) video_game_character video_games watermark white_gloves
2010s 2016 2boys 2d 2d_(artwork) animated_skeleton arms_behind_back artist_name beoteono black_tentacles blue_blush blue_penis blush bodily_fluids bottom_sans buttercupsticks clothed clothing cussing dominant dominant_male drooling duo ectopenis feet_out_of_frame fluids gaster gaster_(undertale) grabbing_another's_chin grabbing_chin grey_background hand_under_chin hands_behind_back male male/male male_focus male_only maledom malesub monster one_eye_closed partially_colored penis precum profanity sans sans_(undertale) sanster seme_gaster simple_background skeleton soul soul_sex submissive submissive_male swearing tentacle tentacle_on_male tentacles tentacles_around_legs tentacles_on_male text top_gaster uke_sans undead undertale undertale_(series) video_games yaoi
2010s 2016 2boys 2d 2d_(artwork) animated_skeleton arms_behind_back artist_name beoteono black_tentacles blue_blush blue_penis blush bodily_fluids bottom_sans buttercupsticks clothed clothing cussing dominant dominant_male drooling duo ectopenis feet_out_of_frame fluids gaster gaster_(undertale) grabbing_another's_chin grabbing_chin grey_background hand_under_chin hands_behind_back male male/male male_focus male_only maledom malesub monster one_eye_closed partially_colored penis precum profanity sans sans_(undertale) sanster seme_gaster simple_background skeleton soul soul_sex submissive submissive_male swearing tentacle tentacle_on_male tentacles tentacles_around_legs tentacles_on_male text top_gaster uke_sans undead undertale undertale_(series) video_games yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) ??? anal anal_fisting animated_skeleton anus black_and_white bottom_sans clitoris comic comic_page comic_panel cuntboy digital_media_(artwork) double_penetration drooling ectopussy edit edited english_text fingers_in_pussy fisting fisting_pussy gaster gaster_(undertale) grabbing_mouth large_filesize long_image male male/cuntboy monochrome monster mouth_held_open multiple_hands nczhhdyb pants_pulled_down pants_pulling pussy pussy_juice sans sans_(undertale) sanster seme_gaster sequence sequential skeleton solo_focus spoken_heart spoken_question_mark spread_anus spread_pussy tears text third-party_edit tongue tongue_out top_gaster uke_sans uncensored undead undertale undertale_(series) urethra vaginal vaginal_fisting video_games wet_pussy yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) ??? anal anal_fisting animated_skeleton anus black_and_white bottom_sans clitoris comic comic_page comic_panel cuntboy digital_media_(artwork) double_penetration drooling ectopussy edit edited english_text fingers_in_pussy fisting fisting_pussy gaster gaster_(undertale) grabbing_mouth large_filesize long_image male male/cuntboy monochrome monster mouth_held_open multiple_hands nczhhdyb pants_pulled_down pants_pulling pussy pussy_juice sans sans_(undertale) sanster seme_gaster sequence sequential skeleton solo_focus spoken_heart spoken_question_mark spread_anus spread_pussy tears text third-party_edit tongue tongue_out top_gaster uke_sans uncensored undead undertale undertale_(series) urethra vaginal vaginal_fisting video_games wet_pussy yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) ??? anal anal_fisting animated_skeleton anus black_and_white bottom_sans clitoris comic comic_page comic_panel cuntboy digital_media_(artwork) double_penetration drooling ectopussy edit edited english_text fingers_in_pussy fisting fisting_pussy gaster gaster_(undertale) grabbing_mouth large_filesize long_image male male/cuntboy monochrome monster mouth_held_open multiple_hands nczhhdyb pants_pulled_down pants_pulling pussy pussy_juice sans sans_(undertale) sanster seme_gaster sequence sequential skeleton solo_focus spoken_heart spoken_question_mark spread_anus spread_pussy tall_image tears text third-party_edit tongue tongue_out top_gaster uke_sans uncensored undead undertale undertale_(series) urethra vaginal vaginal_fisting video_games wet_pussy yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) ??? anal anal_fisting animated_skeleton anus black_and_white bottom_sans clitoris comic comic_page comic_panel cuntboy digital_media_(artwork) double_penetration drooling ectopussy edit edited english_text fingers_in_pussy fisting fisting_pussy gaster gaster_(undertale) grabbing_mouth large_filesize long_image male male/cuntboy monochrome monster mouth_held_open multiple_hands nczhhdyb pants_pulled_down pants_pulling pussy pussy_juice sans sans_(undertale) sanster seme_gaster sequence sequential skeleton solo_focus spoken_heart spoken_question_mark spread_anus spread_pussy tall_image tears text third-party_edit tongue tongue_out top_gaster uke_sans uncensored undead undertale undertale_(series) urethra vaginal vaginal_fisting video_games wet_pussy yaoi
1boy 2d 2d_(artwork) arm_support artist_name bad_id bad_tumblr_id black_clothing blush bulge clothed clothed_male digital_media_(artwork) english_text erection erection_under_clothes floor gaster gaster_(undertale) giaru_(artist) hand_on_own_crotch horny horny_male humanoid looking_down male male_only monster sitting sitting_on_floor solo solo_male text third-party_source tumblr_username undertale undertale_(series) video_games visible_breath wingdings
1boy 2d 2d_(artwork) arm_support artist_name bad_id bad_tumblr_id black_clothing blush bulge clothed clothed_male digital_media_(artwork) english_text erection erection_under_clothes floor gaster gaster_(undertale) giaru_(artist) hand_on_own_crotch horny horny_male humanoid looking_down male male_only monster sitting sitting_on_floor solo solo_male text third-party_source tumblr_username undertale undertale_(series) video_games visible_breath wingdings
2boys 2d 2d_(artwork) ahegao animated_skeleton artist_request blue_tongue blush bottom_sans crying_with_eyes_open dominant_pov english_text fangs gaster gaster_(undertale) hands hands_behind_head male male/male male_ahegao male_focus male_only moan monster multiple_hands pleasure_face pov sans sans_(undertale) sanster seme_gaster skeleton solo_focus text tongue tongue_out top_gaster uke_sans undead undertale undertale_(series) video_games yaoi
2boys 2d 2d_(artwork) ahegao animated_skeleton artist_request blue_tongue blush bottom_sans crying_with_eyes_open dominant_pov english_text fangs gaster gaster_(undertale) hands hands_behind_head male male/male male_ahegao male_focus male_only moan monster multiple_hands pleasure_face pov sans sans_(undertale) sanster seme_gaster skeleton solo_focus text tongue tongue_out top_gaster uke_sans undead undertale undertale_(series) video_games yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) anal anal_fisting animated_skeleton anus black_and_white bottom_sans clitoris comic comic_page comic_panel cuntboy double_penetration drooling ectopussy fisting fisting_pussy gaster gaster_(undertale) grabbing_mouth male male/cuntboy monochrome monster mouth_held_open multiple_hands nczhhdyb pussy sans sans_(undertale) sanster seme_gaster sequence sequential skeleton solo_focus tears tongue tongue_out top_gaster uke_sans uncensored undead undertale undertale_(series) vaginal vaginal_fisting video_games yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) anal anal_fisting animated_skeleton anus black_and_white bottom_sans clitoris comic comic_page comic_panel cuntboy double_penetration drooling ectopussy fisting fisting_pussy gaster gaster_(undertale) grabbing_mouth male male/cuntboy monochrome monster mouth_held_open multiple_hands nczhhdyb pussy sans sans_(undertale) sanster seme_gaster sequence sequential skeleton solo_focus tears tongue tongue_out top_gaster uke_sans uncensored undead undertale undertale_(series) vaginal vaginal_fisting video_games yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) ??? animated_skeleton anus black_and_white bottom_sans clitoris comic comic_page cuntboy ectopussy fingers_in_pussy gaster gaster_(undertale) male male/cuntboy monochrome monster multiple_hands nczhhdyb pants_pulled_down pants_pulling pussy pussy_juice sans sans_(undertale) sanster seme_gaster sequence sequential skeleton solo_focus spoken_heart spoken_question_mark spread_anus spread_pussy top_gaster uke_sans uncensored undead undertale undertale_(series) urethra video_games wet_pussy yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) ??? animated_skeleton anus black_and_white bottom_sans clitoris comic comic_page cuntboy ectopussy fingers_in_pussy gaster gaster_(undertale) male male/cuntboy monochrome monster multiple_hands nczhhdyb pants_pulled_down pants_pulling pussy pussy_juice sans sans_(undertale) sanster seme_gaster sequence sequential skeleton solo_focus spoken_heart spoken_question_mark spread_anus spread_pussy top_gaster uke_sans uncensored undead undertale undertale_(series) urethra video_games wet_pussy yaoi
1:1 1:1_aspect_ratio 2d 2d_(artwork) animated_skeleton blue_blush blue_tongue bottom_sans daron9 gaster gaster_(undertale) implied_penetration implied_sex korean_text male monster sans sans_(undertale) sanster seme_gaster skeleton solo_focus text tongue tongue_out top_gaster uke_sans undead undertale undertale_(series) unseen_male_face video_games
1:1 1:1_aspect_ratio 2d 2d_(artwork) animated_skeleton blue_blush blue_tongue bottom_sans daron9 gaster gaster_(undertale) implied_penetration implied_sex korean_text male monster sans sans_(undertale) sanster seme_gaster skeleton solo_focus text tongue tongue_out top_gaster uke_sans undead undertale undertale_(series) unseen_male_face video_games
2015 2d 2d_(artwork) animated_skeleton black_background blue_blush blush bottom_sans clothed duo gaster gaster_(undertale) groping hand hand_on_crotch hands male monster multiple_hands sans sans_(undertale) sanster seme_gaster shirt_up skeleton solo_focus suckmytrombone sweater top_gaster uke_sans undead undertale undertale_(series) video_games
2015 2d 2d_(artwork) animated_skeleton black_background blue_blush blush bottom_sans clothed duo gaster gaster_(undertale) groping hand hand_on_crotch hands male monster multiple_hands sans sans_(undertale) sanster seme_gaster shirt_up skeleton solo_focus suckmytrombone sweater top_gaster uke_sans undead undertale undertale_(series) video_games
2010s 2018 animated_skeleton ass_slap ass_spanking bottom_sans butt_slap butt_spanking completely_naked completely_nude crying gaster gaster_(undertale) grabbing_sheets gripping_sheets hand monster nude pf-pro-fucker pf_pro_fucker sans sans_(undertale) skeleton slapping slapping_butt solo_focus spanking spanking_ass spanking_butt tears trembling uke_sans undead undertale undertale_(series) unseen_character
2010s 2018 animated_skeleton ass_slap ass_spanking bottom_sans butt_slap butt_spanking completely_naked completely_nude crying gaster gaster_(undertale) grabbing_sheets gripping_sheets hand monster nude pf-pro-fucker pf_pro_fucker sans sans_(undertale) skeleton slapping slapping_butt solo_focus spanking spanking_ass spanking_butt tears trembling uke_sans undead undertale undertale_(series) unseen_character
2020s 2022 2d 2d_(artwork) animated_skeleton arm_grab bad_id bad_twitter_id black_and_white bottom_sans clothed covering_mouth digital_media_(artwork) fingering fingering_another fingering_partner gaster gaster_(undertale) grabbing_arm grabbing_hand hand hand_grab hand_on_mouth hands inactive_account male male_focus male_only monochrome monster monster_boy multiple_hands non-con non-consensual noncon nonconsensual pants_pull pants_pulled_down sans sans_(undertale) sanster seme_gaster shirt_lift shirt_pull shirt_up simple_background skeleton socks_on solo_focus top_gaster toubigaizi twitter uke_sans undead undertale undertale_(series) undressing unseen_character unseen_male_face video_game_character video_games white_hair yaoi
2020s 2022 2d 2d_(artwork) animated_skeleton arm_grab bad_id bad_twitter_id black_and_white bottom_sans clothed covering_mouth digital_media_(artwork) fingering fingering_another fingering_partner gaster gaster_(undertale) grabbing_arm grabbing_hand hand hand_grab hand_on_mouth hands inactive_account male male_focus male_only monochrome monster monster_boy multiple_hands non-con non-consensual noncon nonconsensual pants_pull pants_pulled_down sans sans_(undertale) sanster seme_gaster shirt_lift shirt_pull shirt_up simple_background skeleton socks_on solo_focus top_gaster toubigaizi twitter uke_sans undead undertale undertale_(series) undressing unseen_character unseen_male_face video_game_character video_games white_hair yaoi
2010s 2016 2boys 2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male black_body black_penis black_tentacles blue_blush blue_body blue_penis blue_tongue blush bottom_sans bottomless clothed drooling ectobody ectopenis ectoplasm gaster gaster_(undertale) goo grabbing_chin grabbing_face grabbing_own_penis gradient_background grey_background half-closed_eyes holding_own_penis hooded_jacket hoodie jacket larger_male male male/male male_only maledom malesub partially_clothed partially_nude penis precum safetytrance sans sans_(undertale) sanster skeleton small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom sweat tentacle tentacle_on_male tentacle_under_clothes tentacles tentacles_around_arms tentacles_around_legs tentacles_on_male tongue tongue_out uke_sans undead undertale undertale_(series) video_games yaoi
2010s 2016 2boys 2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male black_body black_penis black_tentacles blue_blush blue_body blue_penis blue_tongue blush bottom_sans bottomless clothed drooling ectobody ectopenis ectoplasm gaster gaster_(undertale) goo grabbing_chin grabbing_face grabbing_own_penis gradient_background grey_background half-closed_eyes holding_own_penis hooded_jacket hoodie jacket larger_male male male/male male_only maledom malesub partially_clothed partially_nude penis precum safetytrance sans sans_(undertale) sanster skeleton small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom sweat tentacle tentacle_on_male tentacle_under_clothes tentacles tentacles_around_arms tentacles_around_legs tentacles_on_male tongue tongue_out uke_sans undead undertale undertale_(series) video_games yaoi
2010s 2016 2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bottom_sans completely_naked completely_nude gaster gaster_(undertale) humanoid kissing larger_male male nude sans sans_(undertale) sanster simple_background skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom uke_sans undead undertale undertale_(series) video_games
2010s 2016 2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bottom_sans completely_naked completely_nude gaster gaster_(undertale) humanoid kissing larger_male male nude sans sans_(undertale) sanster simple_background skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom uke_sans undead undertale undertale_(series) video_games
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2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_tongue bottom_sans english_text from_behind gaster gaster_(undertale) heart-shaped_pupils heart_eyes humanoid humanoid_penetrating larger_male larger_penetrating larger_penetrating_smaller male male_penetrating monochrome nude one_eye_closed penetration sans sans_(undertale) sanster seme_gaster sex sex_from_behind skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom tesno204 text tongue tongue_out top_gaster topless topless_male uke_sans undead undertale undertale_(series) video_games
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2017 2d 2d_(artwork) animated_skeleton blue_blush blue_tongue blush bottom_sans crying crying_with_eyes_open from_behind gaster gaster_(undertale) grabbing_pillow male male_penetrating monster penetration sans sans_(undertale) sanster seme_gaster sex sinfulsanspar skeleton smiling tears tongue tongue_out top_gaster uke_sans undead undertale undertale_(series) video_games yaoi
2017 2d 2d_(artwork) animated_skeleton blue_blush blue_tongue blush bottom_sans crying crying_with_eyes_open from_behind gaster gaster_(undertale) grabbing_pillow male male_penetrating monster penetration sans sans_(undertale) sanster seme_gaster sex sinfulsanspar skeleton smiling tears tongue tongue_out top_gaster uke_sans undead undertale undertale_(series) video_games yaoi
2020s 2022 2boys 2d 2d_(artwork) abosinsin animated_skeleton bad_id bad_twitter_id big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_penis blush bottom_sans commission_art dialogue digital_media_(artwork) duo ectopenis ectoplasm edging english_text face_grab gaster gaster_(undertale) gay gay_sex grabbing_face grabbing_penis holding_face inactive_account larger_penetrating male male/male male_only male_penetrated male_penetrating male_penetrating_male monster orgasm_denial partially_colored penetration penis penis_grab purple_blush purple_penis sans sans_(undertale) sanster seme_gaster sitting skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom text third-party_source top_gaster twitter_username uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2020s 2022 2boys 2d 2d_(artwork) abosinsin animated_skeleton bad_id bad_twitter_id big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_penis blush bottom_sans commission_art dialogue digital_media_(artwork) duo ectopenis ectoplasm edging english_text face_grab gaster gaster_(undertale) gay gay_sex grabbing_face grabbing_penis holding_face inactive_account larger_penetrating male male/male male_only male_penetrated male_penetrating male_penetrating_male monster orgasm_denial partially_colored penetration penis penis_grab purple_blush purple_penis sans sans_(undertale) sanster seme_gaster sitting skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom text third-party_source top_gaster twitter_username uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2010s 2018 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bodily_fluids bottom_sans clothed clothed/nude completely_naked completely_nude crying duo fingering fingering_another fingering_partner fluids fully_clothed gaster gaster_(undertale) humanoid male male/male monochrome monster monster_boy naked nude pf-pro-fucker pf_pro_fucker sans sans_(undertale) sanster seme_gaster skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom tears top_gaster tumblr uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2010s 2018 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bodily_fluids bottom_sans clothed clothed/nude completely_naked completely_nude crying duo fingering fingering_another fingering_partner fluids fully_clothed gaster gaster_(undertale) humanoid male male/male monochrome monster monster_boy naked nude pf-pro-fucker pf_pro_fucker sans sans_(undertale) sanster seme_gaster skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom tears top_gaster tumblr uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2010s 2018 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub blush_lines bottom_sans duo gaster gaster_(undertale) humanoid male male/male monochrome monster monster_boy one_eye_closed pf-pro-fucker pf_pro_fucker sans sans_(undertale) sanster seme_gaster skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom sweat top_gaster tumblr uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2018 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub blush_lines bottom_sans duo gaster gaster_(undertale) humanoid male male/male monochrome monster monster_boy one_eye_closed pf-pro-fucker pf_pro_fucker sans sans_(undertale) sanster seme_gaster skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom sweat top_gaster tumblr uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2018 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bodily_fluids bottom_sans bottomless duo fingering fingering_another fingering_partner fluids gaster gaster_(undertale) humanoid lab_coat labcoat male male/male monochrome monster monster_boy pf-pro-fucker pf_pro_fucker sans sans_(undertale) sanster seme_gaster skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom top_gaster tumblr uke_sans undead undertale undertale_(series) video_game_character video_games
2010s 2018 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bodily_fluids bottom_sans bottomless duo fingering fingering_another fingering_partner fluids gaster gaster_(undertale) humanoid lab_coat labcoat male male/male monochrome monster monster_boy pf-pro-fucker pf_pro_fucker sans sans_(undertale) sanster seme_gaster skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom top_gaster tumblr uke_sans undead undertale undertale_(series) video_game_character video_games
2010s 2018 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed/nude duo ectoplasm fingering gaster gaster_(undertale) humanoid male male/male male_only monochrome monster monster_boy pf-pro-fucker pf_pro_fucker sans sans_(undertale) sanster seme_gaster skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom top_gaster tumblr uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2018 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed/nude duo ectoplasm fingering gaster gaster_(undertale) humanoid male male/male male_only monochrome monster monster_boy pf-pro-fucker pf_pro_fucker sans sans_(undertale) sanster seme_gaster skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom top_gaster tumblr uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
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