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2016 android big_pupils black_and_white black_hair bodily_fluids close-up cutaway dialogue dilated_pupils femboy hair humanoid japanese laugh machine male mettaton mettaton_ex monochrome not_furry open_mouth portrait pupils rie_(artist) robot robot_humanoid shocked short_hair simple_background smile standing stripes surprise sweat sweatdrop text three-quarter_portrait translated undertale undertale_(series) alphys animated_skeleton asgore_dreemurr asriel_dreemurr beard better_version_at_source bone boss_monster_(undertale) bovid cape caprine clothing delta_rune_(emblem) elemental_creature eye_patch eyewear facial_hair fish flora_fauna flowey_the_flower frisk_(undertale) glasses group horn human humanoid lizard machine mammal marine melee_weapon mettaton mettaton_ex monkeykm moomin papyrus_(undertale) plant polearm red_eyes reptile robot sans_(undertale) scalie skeleton stripes symbol the_moomins toriel undead undertale undertale_(series) undyne weapon 2016 english_text humanoid machine male mettaton mettaton_ex monochrome not_furry robot simple_background sketch snao solo text undertale undertale_(series) white_background 2016 big_breasts breasts crossgender female greyscale humanoid machine mettaton mettaton_ex monochrome not_furry robot snao solo undertale undertale_(series) 2016 big_breasts breasts crossgender english_text female humanoid machine mettaton mettaton_ex not_furry robot snao solo text undertale undertale_(series) 2016 big_breasts breasts crossgender female hi_res humanoid machine mettaton mettaton_ex monochrome not_furry robot sketch snao solo undertale undertale_(series) 2016 big_breasts breasts crossgender female greyscale hi_res humanoid machine mettaton mettaton_ex monochrome not_furry robot snao solo undertale undertale_(series) 2017 3:4 alphys avoid_posting black_heart blood bodily_fluids boots clothing dinosaur extinct footwear gloves gore handwear heart_symbol hi_res lizard machine mettaton mettaton_ex prehistoric_species reptile robot scalie torotheking undertale undertale_(series) alphys animated_skeleton annoying_dog_(undertale) anthro asgore_dreemurr asriel_dreemurr beard bone boss_monster_(undertale) bovid canid canine canis caprine castle crown cutlery delta_rune_(emblem) domestic_dog elemental_creature facial_hair female fish floating flora_fauna flower flowey_the_flower fork frisk_(undertale) ghost goat group headgear human humanoid kitchen_utensils lizard machine male mammal marine mature_anthro mature_female mature_male mettaton mettaton_ex monster_kid napstablook papyrus_(undertale) plant reptile robot rokuyon sans_(undertale) scalie shovel skeleton spirit symbol tools toriel tree undead undertale undertale_(series) undyne watering_can absurd_res ambiguous_gender brown_hair clothing comic english_text footwear frisk_(undertale) hair heart_symbol hi_res high_heels human lips long_image machine mammal mettaton mettaton_ex pink_eyes pink_lips question_mark robot shoes sweater tall_image text topwear undertale undertale_(series) unknown_artist 2017 belly big_belly black_and_white greyscale hair hand_on_belly hi_res machine male mettaton mettaton_ex monochrome not_furry pregnant pregnant_male robot simple_background smile solo theannoyingnpc undertale undertale_(series) 1girl 1other 2boys :3 :d androgynous android animal_ears apron bad_id bad_pixiv_id blush brown_hair burgerpants closed_eyes drooling fangs food frisk_(undertale) furry g_perarikku gloves goat_ears hair_over_one_eye mettaton mettaton_ex multiple_boys open_mouth oven_mitts pie short_hair sleeves_rolled_up smile steam toriel translated undertale :3 :d androgynous bad_id bad_pixiv_id banner black_hair brown_hair burgerpants closed_eyes eyepatch fang fins frisk_(undertale) g_perarikku grin hair_over_one_eye hands_in_pockets head_fins headband hood hoodie mettaton mettaton_ex microphone monster_girl multiple_boys open_mouth papyrus_(undertale) ponytail sans_(undertale) sharp_teeth short_hair skeleton smile teeth trembling undertale undyne zzz 2016 alphys animated_skeleton annoying_dog_(undertale) anthro arachnid arthropod asgore_dreemurr asriel_dreemurr beard blonde_hair bone boss_monster_(undertale) bovid bratty_(undertale) canid canine canis caprine catty_(undertale) chara_(undertale) crocodile crocodilian crocodylid dessert dogamy dogaressa doggo_(undertale) domestic_cat domestic_dog eyes_always_closed eyes_closed facial_hair felid feline felis female feral fish food frisk_(undertale) ghost greater_dog grillby group hair human humanoid kissing lagomorph large_group leporid lesser_dog lizard machine mad_dummy male mammal marine mature_anthro mature_female mature_male mettaton mettaton_ex monster_kid muffet mustache napstablook nicecream_man papyrus_(undertale) pastry pie rabbit reptile robot sans_(undertale) scalie skeleton spider spirit tem temmie_(undertale) toriel undead undertale undertale_(series) undyne zilven 2017 alphys balls black_hair blush bodily_fluids boots clothed clothing cum english_text erection eroticphobia footwear genital_fluids genitals hair hair_over_eye humanoid machine male masturbation mettaton mettaton_ex napstablook not_furry one_eye_obstructed penile penile_masturbation penis robot solo spread_legs spreading text undertale undertale_(series) undyne white_balls 2017 alphys balls black_hair blush bodily_fluids boots clothed clothing cum cum_on_hand cum_on_penis cumshot ejaculation erection eroticphobia footwear genital_fluids genitals hair hair_over_eye humanoid machine male masturbation mettaton mettaton_ex napstablook not_furry one_eye_obstructed orgasm orgasm_face penile penile_masturbation penis robot solo spread_legs spreading undertale undertale_(series) undyne white_balls alphys belly big_belly comic english_text female hand_on_belly humanoid machine male mettaton mettaton_ex monochrome octo-risotto orange_and_white robot robot_humanoid scalie text undertale undertale_(series) url anthro black_sclera femboy generation_4_pokemon lagomorph lopunny machine male mammal mettaton mettaton_ex miamaha nintendo pokemon pokemon_(species) robot shiny_pokemon simple_background solo undertale undertale_(series) yellow_eyes android big_breasts bite biting_lip biting_own_lip breasts clothing corset female heart_symbol hi_res huge_breasts humanoid legs_up lingerie lips looking_at_viewer machine mettaton mettaton_ex not_furry overweight panties robot self_bite simple_background slb smile solo thick_thighs topwear undertale undertale_(series) underwear white_background anthro armpit_hair balls being_watched big_balls big_penis bite biting_lip biting_own_lip body_hair breasts canid canine cunnilingus disney erection eulipotyphlan female female/female foursome genitals goof_troop group group_sex hedgehog humanoid lips looking_at_another machine male male/female male_penetrating mammal masturbation mettaton mettaton_ex nipple_fetish nipple_piercing nipple_play nipple_suck nipples oral peg_pete penetration penis piercing power_rangers pubes pussy rita_repulsa robot sega sega_genesis self_bite sex slb sonic_the_hedgehog_(series) sucking thick_penis undertale undertale_(series) vaginal vaginal_penetration 3others :3 :d alphys androgynous annoying_dog asgore_dreemurr bad_id bad_tumblr_id black_hair brown_hair cape chara_(undertale) closed_eyes everyone eye_contact facing_viewer flowey_(undertale) food frisk_(undertale) frown furry glasses goat_girl grin hair_over_one_eye hands_in_pockets heart horns jacket knife looking_at_another mary_cagle meatball mettaton mettaton_ex monster_kid_(undertale) multiple_others napstablook open_mouth orange_scarf own_hands_together papyrus_(undertale) pasta plate red_cape red_hair sans_(undertale) scarf sharp_teeth shirt slippers smile spaghetti striped_clothes striped_shirt tail teeth temmie toriel undertale undyne w.d._gaster 2017 absolutely_everyone alphys amalgamate ambiguous_gender animated_skeleton anthro arachnid arthropod asgore_dreemurr asriel_dreemurr asriel_dreemurr_(god_form) bodily_fluids bone boss_monster_(undertale) bottomwear bovid bratty_(undertale) burgerpants canid canine canis caprine catty_(undertale) clothed clothing crying delta_rune_(emblem) dessert detailed_background digital_media_(artwork) distracting_watermark dogamy dogaressa doggo_(undertale) domestic_dog duo endogeny eyes_closed eyewear felid female feral fire fish flower flowey_the_flower food frisk_(undertale) froggit fur ghost glasses goat goo_creature grass grillby group hair heart_symbol hi_res horn hug human humanoid large_group light lizard long_ears machine male mammal marine mettaton mettaton_ex monster_kid muffet multiple_images napstablook open_mouth pants papyrus_(undertale) pastry petals pie pillar plant reptile robot sans_(undertale) scalie shirt skeleton smile snow spider spirit sunlight sweater symbol tears tem temmie_(undertale) topwear toriel tree undead undertale undertale_(series) undyne walkingmelonsaaa water watermark white_body white_fur young alphys androgynous armor arthropod_girl asgore_dreemurr asriel_dreemurr bad_id bad_pixiv_id beard blue_skin blush brown_hair closed_eyes colored_skin crown cup everyone extra_arms extra_eyes eyepatch facial_hair fewer_digits fins flower flowey_(undertale) frisk_(undertale) furry furry_male g_perarikku glasses gloves grin hair_over_one_eye head_fins heart hood hoodie horns mettaton mettaton_ex monster_girl monster_kid_(undertale) muffet multiple_boys multiple_girls napstablook open_mouth papyrus_(undertale) ponytail red_hair sans_(undertale) scarf sharp_teeth shirt short_hair shorts skeleton smile spider_girl striped_clothes striped_shirt striped_sweater sweater teacup teeth toriel undertale undyne yellow_skin ambiguous_gender ambiguous_penetrated android animated digital_media_(artwork) duo erection eyes_closed femboy genitals hotlegmeme loop low_res machine male male/ambiguous male_penetrating male_penetrating_ambiguous mettaton mettaton_ex not_furry oral penetration penis robot sex short_playtime solo_focus source_request undertale undertale_(series) alphys ambiguous_gender animal_humanoid animated_skeleton arachnid armor arthropod asgore_dreemurr asriel_dreemurr beard blue_body blue_fur bone boss_monster_(undertale) bovid burgerpants caprine castle clothed clothing container crown cup dessert distracting_watermark electronics elemental_creature eyewear facial_hair fangs female fire fire_creature fish fish_humanoid flower food frisk_(undertale) fur ghost glasses goat grillby group hat headgear headphones headwear holding_container holding_cup holding_object horn humanoid ice_cream lagomorph leporid lizard long_ears lying machine male mammal marine marine_humanoid mettaton mettaton_ex midriff muffet napstablook nicecream_man pankax papyrus_(undertale) pasta pastry petals pie plant rabbit rabbit_shopkeeper reptile robot sans_(undertale) scalie sitting skeleton spaghetti spider spirit stripes tea_cup teapot teeth text text_on_clothing text_on_hat text_on_headwear toriel undead undertale undertale_(series) undyne watermark white_body white_fur 4_arms adult_swim animal_humanoid arachnid arachnid_humanoid arthropod arthropod_humanoid blade blush cartoon_network clothing crossover crown female grey_body grey_skin group hanna-barbera headgear humanoid humor interspecies jealous kissing larger_male love machine male markings metal mettaton mettaton_ex missile muffet multi_arm multi_limb pigtails plant purple_body purple_skin red_eyes robot romantic romantic_couple shrub size_difference space_ghost_(series) spider spider_humanoid the_brak_show thundercleese undertale undertale_(series) whitexkitty wrist_rocket android anon areola big_breasts black_hair boots breasts clothing crossgender duo female footwear hair humanoid jamesab machine mettaton mettaton_ex nipples not_furry robot undertale undertale_(series) alphys ambiguous_gender android animal_humanoid animated_skeleton arachnid arachnid_humanoid arthropod arthropod_humanoid asgore_dreemurr asriel_dreemurr asriel_dreemurr_(god_form) beard black_hair bone boss_monster_(undertale) bovid caprine cave_story chara_(undertale) clothing crossover digital_media_(artwork) elemental_creature eye_patch eyewear facial_hair felid female fiefio fish fish_humanoid flora_fauna flowey_the_flower frisk_(undertale) fur goat group hair happy headshot_portrait hi_res horn human humanoid lizard long_ears machine mad_dummy male mammal marine marine_humanoid mettaton mettaton_ex monster_kid muffet napstablook papyrus_(undertale) parody pixel_(artwork) plant portrait red_hair reptile robot sans_(undertale) scalie skeleton smile spider_humanoid style_emulation tem temmie_(undertale) toriel undead undertale undertale_(series) undyne white_body white_fur belly big_belly blush bodily_fluids dialogue drooling english_text getinthegut heart_symbol humanoid machine male mettaton mettaton_ex not_furry robot saliva text tongue undertale undertale_(series) vore abdominal_bulge actually-mettaton after_vore anon belly better_version_at_source big_belly black_hair bodily_fluids boots bulge butt clothing colored_saliva dialogue english_text eyewear fangs footwear glasses hair heart_symbol hi_res high_heels huge_belly humanoid hyper hyper_belly machine male mettaton mettaton_ex open_mouth pink_eyes pink_saliva robot rumbling_stomach saliva sharp_teeth shoes simple_background sitting slosh sunglasses teeth text tongue tongue_out undertale undertale_(series) unusual_bodily_fluids unusual_saliva vore white_background wide_hips :| alphys ambiguous_gender anthro clothed clothing coat comic cybernetics cyborg digital_media_(artwork) duo female group isabunnie lab_coat lizard machine male mettaton mettaton_ex monster_kid mtt_brand_legs open_mouth prosthetic prosthetic_arm prosthetic_limb reptile robot robotics scalie shirt simple_background smug thought_bubble tongue tongue_out topwear undertale undertale_(series) white_background wide_eyed yelling 2017 backpack clothing dress japanese_text luggage machine male mettaton mettaton_ex nam not_furry robot solo suit text translation_request undertale undertale_(series) 1boy altimaen_iten android beckoning belt black_eyeshadow black_hair black_leotard black_pantyhose black_sleeves boots checkered_floor closed_mouth colored_inner_hair eyeshadow full_body gloves hair_between_eyes heart high_heel_boots high_heels highres knee_boots knees leotard lips looking_at_viewer makeup male_focus mettaton mettaton_ex multicolored_hair pantyhose pink_eyes pink_footwear pink_hair short_hair short_sleeves smirk solo sparkle speaker stage stage_lights third-party_source undertale white_belt white_gloves anthro armpit_hair asgore_dreemurr atlantart body_hair boss_monster_(undertale) bovid caprine duo hi_res machine male mammal mettaton mettaton_ex musclegut muscular muscular_male robot simple_background sketch solo_focus text undertale undertale_(series) balls black_hair briefs clothing crotch_window determination erection genitals gloves gosth grey_balls grey_body grey_penis hair hair_over_eye hands_on_hips handwear hi_res humanoid luckymax2012 machine male metal_penis mettaton mettaton_ex not_furry one_eye_obstructed penis pose power_stance purple_eyes rivets robot robot_penis segmented_armor show sketch solo spiky_hair standing translucent translucent_balls undertale undertale_(series) underwear white_clothing white_gloves white_handwear alphys animal_humanoid bodily_fluids building clothing crying electronics english_text female fish fish_humanoid group house hug humanoid humor kasunshine laugh lizard machine male marine marine_humanoid meme mettaton mettaton_ex microphone news plant reaction_image reptile robot scalie simple_background snow suit tears text tree undertale undertale_(series) undyne url winter 2boys 2koma android barefoot black_hair boots bottomless comic eyelashes eyes_closed eyeshadow frisk_(undertale) gloves greyscale hair_over_one_eye instant_loss_2koma koshiitai mating_press mettaton mettaton_ex missionary monochrome multiple_boys open_mouth penis sex short_hair sparkle striped striped_shirt t-shirt translation_request undertale yaoi 2016 alphys amalgamate ambiguous_gender animated_skeleton anthro asgore_dreemurr blonde_hair bone boss_monster_(undertale) bovid caprine clothed clothing coat colored elemental_creature endogeny eye_patch eyes_closed eyewear facial_hair female fish flora_fauna flower flower_pot flowey_the_flower frisk_(undertale) fur gaster ghost glasses group hair horn human humanoid lab_coat lizard long_ears lynxgriffin machine male mammal marine mettaton mettaton_ex napstablook papyrus_(undertale) plant reptile robe robot sans_(undertale) scalie skeleton smile spirit topwear toriel undead undertale undertale_(series) undyne white_body white_fur 2016 absurd_res alphys amalgamate ambiguous_gender animated_skeleton annoying_dog_(undertale) anthro asgore_dreemurr bed bone boss_monster_(undertale) bovid building canid canine canis caprine child clothed clothing colored comic dialogue domestic_dog dresser elemental_creature endogeny english_text eyes_always_closed eyes_closed feral fish flora_fauna flower flower_pot flowey_the_flower food frisk_(undertale) furniture gaster ghost group hi_res hoodie house human humanoid inside ladder lamp laugh lizard long_image lying lynxgriffin machine male mammal marine mettaton mettaton_ex napstablook one_eye_closed outside papyrus_(undertale) photo picture_frame pillow plant plushie poster reptile robot sans_(undertale) scalie sitting skeleton sky smile sound_effects speech_bubble spirit star table tall_image text tongue tongue_out topwear toriel undead underground undertale undertale_(series) undyne window wink young 2016 3:5 absurd_res alien anthro athletic athletic_anthro athletic_male blurred_background bulge clothed clothing cosplay digital_media_(artwork) felid fur geno28_(artist) hair heart_symbol hi_res kurt_the_thunderfloof looking_at_viewer male mammal mettaton mettaton_ex signature solo undertale undertale_(series) 2016 android angry animal_humanoid animated_skeleton annoying_dog_(undertale) anthro arachnid arachnid_humanoid armor arthropod arthropod_humanoid asgore_dreemurr beard black_hair black_nose blonde_hair bone boots boss_monster_(undertale) bovid bread brown_hair canid canine canis caprine chainsaw claws clothing container croissant cup dessert domestic_dog doughnut drinking elemental_creature english_text eye_patch eyes_closed eyewear facial_hair female feral fire fish fish_humanoid flora_fauna flowey_the_flower food footwear frisk_(undertale) fur glistening gloves group hair handwear happy heart_symbol hoodie horn human humanoid insect legwear long_hair machine male mammal marine marine_humanoid mettaton mettaton_ex muffet nervous open_mouth papyrus_(undertale) pastry plant ponytail power_tool red_hair robe robot sans_(undertale) shirt shoes shoulder_pads skeleton slippers smile spider_humanoid stick tem temmie_(undertale) text tights tools topwear toriel undead undertale undertale_(series) undyne uwasa weapon white_body white_fur 2016 ambiguous_gender android bedsheet_ghost digital_media_(artwork) femboy ghost group humanoid kritterart machine male mettaton mettaton_ex napstablook not_furry robot simple_background spirit square_crossover undertale undertale_(series)