alphys amalgamate ambiguous_gender anthro astrobullet_(artist) canid canine clothing comic dialogue digital_media_(artwork) doorway duo_focus endogeny english_text eyewear female freckles glasses glowing glowing_eyes group hi_res humanoid inside laboratory lizard machine male mammal mettaton mettaton_ex reptile robot scalie text undertale undertale_(series)
alphys ambiguous_gender anthro astrobullet_(artist) bodily_fluids clothing comic crying dialogue digital_media_(artwork) duo english_text eyewear female freckles glasses glistening hi_res lizard machine mettaton mettaton_ex reptile robot scalie screen tears text undertale undertale_(series)
alphys amalgamate ambiguous_gender anthro astrobullet_(artist) clothing comic dialogue digital_media_(artwork) endogeny english_text female floor glistening group hi_res inside laboratory lemon_bread lizard machine mettaton mettaton_ex reptile robot scalie text tile tile_floor undertale undertale_(series)
ambiguous_gender aquatic backpack bone chara_(undertale) clothing cosplay crossover dark_link duo elemental_creature eye_patch eyewear fairy female fish flora_fauna flowey_the_flower frisk_(undertale) gem gerudo ghirahim ghost gloves group handwear happy_mask_salesman hat headgear headwear human link machine majora's_mask male mammal mask melee_weapon mettaton mettaton_ex mitsuyuki32 multiple_images nabooru napstablook navi nintendo ocarina_of_time plant robot shield simple_background skeleton skyward_sword solo spirit stick sword the_legend_of_zelda trio undertale undertale_(series) undyne weapon white_background yellow_sclera
2d-dungeon android animated animated_gif black_hair bust_portrait digital_media_(artwork) english_text hair high_framerate humanoid lips machine mettaton mettaton_ex not_furry pink_lips portrait robot robot_humanoid short_playtime solo text undertale undertale_(series)
2d-dungeon alpha_channel android animated animated_gif black_hair bust_portrait digital_media_(artwork) hair hair_over_eye high_framerate humanoid lips low_res machine mettaton mettaton_ex not_furry one_eye_obstructed pink_lips portrait robot robot_humanoid short_playtime simple_background smile smirk solo text thumbnail transparent_background undertale undertale_(series)
2d-dungeon alpha_channel android animated animated_gif black_hair bust_portrait digital_media_(artwork) hair hair_over_eye high_framerate humanoid lips low_res machine mettaton mettaton_ex not_furry one_eye_obstructed pink_lips portrait robot robot_humanoid short_playtime simple_background smile solo text thumbnail transparent_background undertale undertale_(series)
2d-dungeon alpha_channel android animated animated_gif black_hair bust_portrait digital_media_(artwork) eyes_closed hair hair_over_eye high_framerate humanoid lips low_res machine mettaton mettaton_ex not_furry one_eye_obstructed pink_lips portrait robot robot_humanoid short_playtime simple_background solo text thumbnail transparent_background undertale undertale_(series)
2d-dungeon 2d_animation alpha_channel android animated animated_gif black_hair bust_portrait digital_media_(artwork) hair hair_over_eye high_framerate humanoid lips low_res machine mettaton mettaton_ex motion_tweening not_furry one_eye_obstructed open_mouth pink_lips portrait robot robot_humanoid short_playtime simple_background solo text thumbnail transparent_background undertale undertale_(series)
2d-dungeon alpha_channel android animated animated_gif bite biting_own_tongue black_hair bust_portrait digital_media_(artwork) hair hair_over_eye high_framerate humanoid lips low_res machine mettaton mettaton_ex not_furry one_eye_obstructed pink_lips portrait robot robot_humanoid self_bite short_playtime simple_background solo text thumbnail tongue tongue_bite tongue_out transparent_background undertale undertale_(series)
2d-dungeon alpha_channel android animated animated_gif black_hair bust_portrait digital_media_(artwork) grin hair hair_over_eye high_framerate humanoid lips low_res machine mettaton mettaton_ex not_furry one_eye_obstructed pink_lips portrait robot robot_humanoid short_playtime simple_background smile smirk solo text thumbnail transparent_background undertale undertale_(series)
2016 alphys anthro black_hair clothed clothed_anthro clothing colored digital_drawing_(artwork) digital_media_(artwork) english_text female female_anthro foxtragic glistening gloves group hair hair_over_eye handwear humanoid light lighting male male_humanoid mammal mettaton mettaton_ex reptile scalie shaded text trio undertale undertale_(series) white_clothing white_gloves white_handwear
2016 absurd_res android digital_media_(artwork) femboy glistening hair hi_res humanoid insanity-paints_(artist) machine male male_humanoid mettaton mettaton_ex not_furry one_eye_closed robot robot_humanoid smile solo undertale undertale_(series) wink
ambiguous_gender animated_skeleton anthro aquatic armor basketball black_hair blue_clothing blue_sweater blue_topwear bodily_fluids bone boss_monster_(undertale) bovid box brother_(lore) brothers_(lore) caprine cardboard cardboard_box chara_(undertale) clothed clothing cloudy-eevee container demon female fish frisk_(undertale) fur glistening gloves green_clothing green_sweater green_topwear group hair handwear hat headgear headwear human knife machine male mammal melee_weapon mettaton mettaton_neo money papyrus_(undertale) pattern_clothing pattern_shirt pattern_sweater pattern_topwear polearm praying prison red_hair robot sans_(undertale) shirt sibling_(lore) skeleton spear striped_clothing striped_shirt striped_sweater striped_topwear stripes sweater tears topwear toriel undead undertale undertale_(series) undyne undyne_the_undying weapon white_body white_fur
2015 absurd_res alphys being_watched bodily_fluids comic crying english_text eyewear female glasses hair hi_res lizard long_image looking_at_another machine male melting mettaton red_hair reptile robot scalie tall_image tears text undertale undertale_(series) undyne undyne_the_undying yamsgarden
16:9 ambiguous_gender battle_tendency clothing duo eyes_closed frisk_(undertale) gloves handwear human humanoid japanese_text jojo's_bizarre_adventure jojo_pose machine male mammal meme mettaton mettaton_ex muscular not_furry novaphyer parody pattern_clothing pattern_shirt pattern_topwear pose robot shirt striped_clothing striped_shirt striped_topwear stripes style_emulation text topwear undertale undertale_(series) widescreen
animated_skeleton anthro asgore_dreemurr azurite-draws beard blonde_hair bone boss_monster_(undertale) bovid brother_(lore) brothers_(lore) caprine christmas clothed clothing coal comic comic_sans dialogue digital_media_(artwork) english_text facial_hair fire gift group hair hi_res holidays humor long_ears male mammal mettaton papyrus_(font) papyrus_(undertale) sans_(undertale) sibling_(lore) skeleton text text_box unavailable_at_source undead undertale undertale_(series)
2015 3_toes alphys android anthro areola belly black_hair boots breasts bunkakke clothed clothing dialogue digital_media_(artwork) duo english_text eyes_closed eyewear feet female female/female fingering footwear genitals glasses gloves hair handwear heart_symbol high_heeled_boots high_heels hindpaw humanoid humanoid_on_anthro lizard looking_pleasured lying machine mettaton mettaton_ex moan motion_lines nipples nude on_back open_mouth orange_body orange_scales overweight overweight_female paws penetration reptile robot scales scalie sex shoes simple_background smile text toes undertale undertale_(series) vaginal vaginal_fingering vulva white_background
2016 69_position anal android anthro asgore_dreemurr backsack balls beard blonde_hair bodily_fluids body_hair boss_monster_(undertale) bottomwear bovid breasts butt buttdawg caprine chest_hair cleavage clothed clothing digital_media_(artwork) dildo duo_focus erection exclamation_point facesitting facial_hair feet female from_front_position fur gaster genitals group hair hairy half-erect hindpaw horn humanoid humanoid_genitalia humanoid_on_anthro humanoid_penis interspecies larger_male larger_on_top larger_penetrated larger_rimmed long_ears looking_back lying machine male male/female male/male male_focus male_penetrated male_penetrating male_penetrating_male mammal mature_male mettaton mettaton_ex missionary_position motion_lines multicolored_body multicolored_fur multiple_images nipples nude on_back on_top open_mouth oral overweight overweight_male papyrus_(undertale) paws penetration penile penile_penetration penis perineum rimming robot sex sex_toy shorts shoulder_hair simple_background sitting sitting_on_another size_difference slap smaller_male smile spread_legs spreading standing sweat topless toriel two_tone_body two_tone_fur undertale undertale_(series) white_background white_body white_fur yellow_body yellow_fur
5:3 accessory alphys alternate_universe ambiguous_gender animated_skeleton anthro aquatic arachnid armless arthropod asgore_dreemurr beard blonde_hair board_game bone boss_monster_(undertale) bovid bow_(feature) bow_accessory bow_ribbon burgerpants canid canine canis caprine clothed clothing dmsaud1004 domestic_dog dress elemental_creature facial_hair female fire fire_creature fish frisk_(undertale) fur ghost grillby group hair hair_accessory hair_bow hair_ribbon hat headgear headwear horn human joseontale lesser_dog lizard male mammal mettaton mettaton_ex monster_kid muffet napstablook papyrus_(undertale) reptile ribbons sans_(undertale) scalie skeleton spider spirit tem temmie_(undertale) text text_on_clothing text_on_hat text_on_headgear text_on_headwear toriel undead undertale undertale_(series) undyne white_body white_fur woshua yunnori
android boots clothing drag_(fashion) erection footwear genitals glistening hair hair_over_eye herm high_heeled_boots high_heels humanoid intersex machine maleherm mettaton mettaton_ex not_furry one_eye_obstructed penis robot sackless shoes simple_background solo undertale undertale_(series) vulva
1:1 anal anal_penetration anthro anthro_penetrating anthro_penetrating_humanoid bratty_(undertale) catty_cattenheimer clothed clothing dildo domestic_cat erection felid feline felis female female_penetrating female_penetrating_male fur genitals group hair humanoid humanoid_genitalia humanoid_on_anthro humanoid_penetrated humanoid_penis interspecies machine male male/female male_on_anthro male_penetrated mammal mettaton mettaton_ex object_in_ass open_mouth pegging penetration penis purple_body purple_fur reptile robot scalie sex sex_toy sex_toy_in_ass sex_toy_insertion smile strapon toying_partner undertale undertale_(series)
2016 alternate_universe black_hair blush digital_media_(artwork) erection gaiki genitals glowing glowing_eyes group hair heart_symbol hi_res humanoid humanoid_genitalia humanoid_penis machine male male/male mettaton mettaton_(underfell) mettaton_ex mettaton_ex_(underfell) mettaton_neo nipples not_furry nude open_mouth penis robot selfcest sex simple_background smile square_crossover teeth tongue tongue_out underfell undertale undertale_(series)
digital_media_(artwork) erection genitals hi_res holding_object machine male mettaton not_furry nude penis robot simple_background solo undertale undertale_(series) unknown_artist what what_has_science_done why
alternate_universe android animated_skeleton blush bone clothing digital_media_(artwork) duo erection fangs genitals hair hotlegmeme humanoid machine male male/male metallic_body mettaton_(underfell) mettaton_ex_(underfell) multi_arm multi_limb not_furry open_mouth papyrus_(underfell) penis robot simple_background skeleton smile teeth tongue tongue_out undead underfell undertale undertale_(series) white_background
alternate_universe anal anal_penetration android animated_skeleton blush bone clothed clothing digital_media_(artwork) duo genitals hair heart_symbol hotlegmeme humanoid machine male male/male male_penetrated male_penetrating male_penetrating_male mettaton_(underfell) mettaton_ex_(underfell) multi_arm multi_eye multi_limb not_furry open_mouth papyrus_(underfell) penetration penis robot sex simple_background skeleton teeth undead underfell undertale undertale_(series) white_background
android balls clothed clothing digital_media_(artwork) drag_(fashion) drag_queen erection femboy genitals glowing hair hair_over_eye heart_eyes heart_symbol hotlegmeme humanoid humanoid_genitalia humanoid_penis long_hair looking_at_viewer machine male metal_penis mettaton mettaton_ex not_furry one_eye_obstructed penis robot smile solo teeth undertale undertale_(series)
clothed clothing digital_media_(artwork) drag_(fashion) drag_king duo femboy glowing hair humanoid long_hair machine male male/male mettaton mettaton_ex mettaton_neo not_furry open_mouth robot selfcest simple_background square_crossover tongue undertale undertale_(series)
digital_media_(artwork) english_text erection genitals humor machine male mettaton not_furry penis robot simple_background solo text undertale undertale_(series) unknown_artist what what_has_science_done white_background why
2015 alphys anthro big_breasts biped blonde_hair blush breasts brown_eyes cleavage clothed clothing digital_media_(artwork) dress eyebrows eyelashes eyewear female fully_clothed glasses glitter hair half-length_portrait hi_res lizard long_hair mikeaniki non-mammal_breasts portrait reptile scalie signature simple_background solo sparkles undertale undertale_(series) white_background
ambiguous_gender comic digital_media_(artwork) duo english_text frisk_(undertale) hair hi_res human humanoid humor long_hair machine male mammal mettaton mettaton_neo monochrome not_furry open_mouth robot simple_background text undertale undertale_(series) unknown_artist
anal anal_penetration animated_skeleton anus balls bone butt clothing digital_media_(artwork) duo erection femboy genitals hair humanoid humanoid_genitalia humanoid_penis long_hair machine male male/male male_penetrated male_penetrating male_penetrating_male mettaton mettaton_ex not_furry papyrus_(undertale) penetration penis robot sex skeleton teeth tongue undead undertale undertale_(series) yamsgarden
9:16 accessory ambiguous_gender avian bird bodily_fluids bow_(feature) bow_tie comic crying door dragon eyewear father_(lore) glasses hi_res humor male mettaton mythological_creature mythological_scalie mythology necktie parent_(lore) pun rug sad scalie sculpture snowdrake's_father statue tears undertale undertale_(series) unknown_artist water
1:1 2015 andromorph andromorph/male anthro asgore_dreemurr beard big_fingers blonde_hair blush boots boss_monster_(undertale) bovid caprine clothed clothing crossdressing crossgender digital_media_(artwork) dongoverlord drag_(fashion) duo erection facial_hair femboy fingering footwear fur genitals hair high_heeled_boots high_heels horn humanoid intersex intersex/male larger_male legwear long_ears long_hair machine male male_fingering_andromorph mammal mature_anthro mature_male mettaton mettaton_ex mta_crossgender mti_crossgender muscular mustache open_mouth penis robot sex shoes simple_background size_difference smaller_andromorph smaller_intersex tail teeth thigh_boots thigh_highs tongue tongue_out undertale undertale_(series) vaginal vaginal_fingering vulva white_body white_fur
bodily_fluids cum cum_on_face dialogue digital_media_(artwork) duo english_text erection genital_fluids genitals gesture handjob machine male male/male mettaton monochrome motion_lines not_furry penile penis raised_finger raised_pinky robot sex simple_background speech_bubble text undertale undertale_(series)
animated_skeleton balls bodily_fluids bone clothed clothing cum digital_media_(artwork) duo erection femboy genital_fluids genitals glowing hair humanoid_genitalia humanoid_penis machine male male/male mettaton mettaton_ex not_furry open_mouth orgasm papyrus_(undertale) penis robot sex skeleton smile teeth tongue tongue_out undead undertale undertale_(series) yamsgarden
balls bodily_fluids clothed clothing cum digital_media_(artwork) erection femboy genital_fluids genitals group hair hair_over_eye heart_symbol hotlegmeme human looking_at_viewer machine male male/male mammal mettaton mettaton_ex monochrome not_furry one_eye_obstructed open_mouth penis robot sex tongue tongue_out undertale undertale_(series)
animated_skeleton blush bone clothed clothing digital_media_(artwork) duo hair hotlegmeme machine male male/male mettaton_neo monochrome not_furry robot sans_(undertale) simple_background skeleton smile undead undertale undertale_(series)
blush bodily_fluids brachyzoid cum digital_media_(artwork) female gem generation_6_pokemon genital_fluids genitals gold_(metal) gold_tooth humanoid improvised_sex_toy looking_pleasured mega_evolution mega_sableye navel nintendo nipples nude open_mouth penetration pokemon pokemon_(species) red_eyes saliva sharp_teeth simple_background solo teeth tongue vaginal vaginal_fluids vaginal_penetration vulva
alphys alphys_(underfell) alternate_universe animal_humanoid anthro aquatic aquatic_humanoid bite blood blush bodily_fluids breasts clawing clothing digital_media_(artwork) eye_patch eyewear female female/female fish fish_humanoid genital_fluids genitals glasses group hair humanoid humanoid_on_anthro lizard nipples open_mouth red_hair reptile scalie sex slightly_chubby smile teeth text thebigmonstersucc tongue tongue_out underfell undertale undertale_(series) underwear undyne_(underfell) vaginal_fluids vulva
1:1 2016 alternate_universe ambiguous_gender android clothed clothing digital_media_(artwork) duo gaiki hair half-closed_eyes humanoid looking_at_viewer low_res machine mettaton mettaton_(underfell) mettaton_ex mettaton_ex_(underfell) narrowed_eyes not_furry open_mouth robot smile teeth tongue tongue_out underfell undertale undertale_(series)
andromorph andromorph/male animated_skeleton black_hair bone clothed clothing crossdressing crossgender digital_media_(artwork) duo femboy genitals hair heart_symbol hi_res hotlegmeme humanoid intersex intersex/male machine male mettaton mettaton_neo monochrome mta_crossgender mti_crossgender not_furry papyrus_(undertale) robot simple_background skeleton teeth tongue undead undertale undertale_(series) vulva
anal anal_penetration android balls black_hair clothed clothing digital_media_(artwork) drag_(fashion) drag_king duo erection feet genitals glistening hair heart_symbol hi_res human humanoid looking_at_viewer machine male male/male male_penetrated male_penetrating male_penetrating_male mammal mettaton mettaton_neo not_furry penetration penis robot sex sex_toy smile undertale undertale_(series)
anal anus bdsm bodily_fluids bondage bonegard bound butt digital_media_(artwork) drooling english_text ghost hair hi_res machine male napstabot not_furry robot saliva sex_toy simple_background solo spirit tears text undertale undertale_(series) vibrator white_background white_hair
3:4 anal anal_masturbation anal_penetration anus bodily_fluids butt cum digital_media_(artwork) duo erection femboy genital_fluids genitals ghost hair hi_res humanoid_genitalia humanoid_penis machine male masturbation napstablook napstabot not_furry penetration penile penile_masturbation penis robot sex_toy simple_background spirit tears text toying_self undertale undertale_(series) vibrator white_background white_hair
animated_skeleton bone cigarillo clothed clothing dialogue english_text erection genitals humanoid_genitalia humanoid_penis male not_furry open_mouth orange_penis papyrus_(undertale) penis skeleton smoke smoking solo text thebigmonstersucc undead undertale undertale_(series)
anthro asgore_dreemurr beard blonde_hair blush boss_monster_(undertale) bovid caprine clothing cloudstrifeahegao comic digital_media_(artwork) duo english_text erection facial_hair feet femboy fur genitals glistening hair heart_symbol hi_res long_ears machine male male/male mammal mettaton mettaton_ex muscular open_mouth penis robot submissive submissive_male teeth text undertale undertale_(series) white_body white_fur
2015 anal anal_penetration animated_skeleton balls black_hair blush bodily_fluids bone clothing cum cum_in_ass cum_inside digital_media_(artwork) femboy genital_fluids genitals group hair heart_symbol hotlegmeme humanoid legwear machine male male/male male_penetrated male_penetrating male_penetrating_male mettaton mettaton_ex mettaton_neo not_furry open_mouth papyrus_(undertale) penetration penis robot selfcest sex skeleton square_crossover undead undertale undertale_(series)
2016 animated_skeleton balls bone clothed clothing dialogue digital_media_(artwork) duo english_text erection food genitals hotlegmeme humanoid humanoid_genitalia humanoid_penis machine male male/male mettaton mettaton_ex not_furry open_mouth penis robot sans_(undertale) simple_background skeleton smile text undead undertale undertale_(series)
2016 blush digital_media_(artwork) erection femboy food food_fetish food_play genitals hair hair_over_eye hi_res humanoid machine male mettaton mettaton_ex not_furry one_eye_obstructed penetration penis robot simple_background solo undertale undertale_(series) unknown_artist what white_background why
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