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alphys animated_skeleton anthro better_version_at_source black_and_white bodily_fluids bone boxers_(clothing) chara_(undertale) clothed clothing comic dialogue english_text eyewear glasses hair human humanoid lizard mammal monochrome reptile sans_(undertale) scalie skeleton speech_bubble squatlord sweat text undead undertale undertale_(series) underwear 1other 2boys 4girls alphys androgynous arthropod_girl asriel_dreemurr bad_id bad_pixiv_id brown_hair closed_eyes commentary_request evil_smile extra_arms extra_eyes flower flowey_(undertale) frisk_(undertale) furry furry_male g_perarikku grin heart highres hood hoodie long_sleeves muffet multiple_boys multiple_girls open_mouth sans_(undertale) shirt short_hair shorts skeleton smile spider_girl striped_clothes striped_shirt teeth toriel undertale undyne 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 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canine cape caprine catty_(undertale) chara_(undertale) clothing colored_fire cubesona dogressa elemental_creature elemental_humanoid english_text eyewear facial_hair felid female fire fire_creature fish flower flowey_the_flower frisk_(undertale) fuku_fire gaster gerson ghost glasses goat green_fire grillby group hair hat headgear headwear heart_symbol hi_res horn human humanoid lagomorph large_group leporid lineup male mammal marine melee_weapon mettaton model_sheet muffet muscular muscular_male napstablook nipples papyrus_(undertale) pecs photoshop_flowey plant rabbit rabbit_shopkeeper reptile robe sans_(undertale) scalie shyren skeleton smile spider spirit sword tem temmie_(undertale) text text_on_clothing text_on_hat text_on_headwear thick_thighs toriel turtle undertale undertale_(series) undyne weapon alphys animated anthro blush bodily_fluids digital_media_(artwork) english_text eyewear female glasses looking_at_viewer loop reptile scalie short_playtime solo sweat teeth text 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embarrassed exclamation_point eyes_closed eyewear fangs feet female female/female fin fish fish_humanoid foot_on_face genital_fluids genitals glasses heart_symbol humanoid humanoid_on_anthro internal japanese_text lab_coat looking_pleasured marine marine_humanoid multiple_positions nam nipple_bite nipple_fetish nipple_play nipples open_mouth oral pussy reptile scalie sex small_breasts spread_pussy spreading teeth text toes tongue tongue_out topwear translated undertale undertale_(series) undyne vaginal 3_fingers 3_toes 4_fingers alphys animal_humanoid anthro bare_shoulders barefoot blue_body blue_skin blush breasts claws clothing coat duo ear_fins eye_patch eyewear feet female female/female fin fingering fingers fish fish_humanoid foreplay genitals glasses grope hair hand_on_breast hi_res humanoid humanoid_on_anthro lab_coat lizard marine marine_humanoid mightyworld nude open_mouth plump_labia pussy red_hair reptile scales scalie simple_background size_difference teeth third-party_edit 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yellow_body yellow_skin 1:1 alphys ambiguous_gender animated_skeleton anthro asgore_dreemurr bedsheet_ghost blonde_hair bone boss_monster_(undertale) bovid cape caprine cave_story clothing cloud crossover digital_media_(artwork) elemental_creature eyewear fish flora_fauna flowey_the_flower forest frisk_(undertale) ghost glasses group hair hawfstuff horn human humanoid lizard machine mammal marine mettaton monster_kid mountain napstablook papyrus_(undertale) pixel_(artwork) plant reptile robot sans_(undertale) scalie skeleton spirit style_emulation toriel tree undead undertale undertale_(series) undyne alphys ambiguous_gender anthro asriel_dreemurr bebetterbop boss_monster_(undertale) bovid caprine child controller covering covering_eyes covering_face english_text eyewear female frisk_(undertale) glasses goat group human lizard long_ears male mammal question_mark remote_control reptile scalie stripes text undertale undertale_(series) young alphys animated_skeleton asgore_dreemurr asriel_dreemurr better_version_at_source bone boss_monster_(undertale) bovid caprine child clear_sky delta_rune_(emblem) english_text father_(lore) fish frisk_(undertale) ghost group hand_holding heart_symbol human humanoid letters lizard machine mammal marine mettaton mother_(lore) napstablook papyrus_(undertale) parent_(lore) reptile robot sans_(undertale) scalie skeleton sky snow spirit symbol text toriel undead undertale undertale_(series) undyne young yourmobi 2017 alphys bed belly blush breasts claws clothing cute dress eyewear female glasses invalid_tag looking_at_viewer monster navel reptile scalie slightly_chubby smile solo teeth undertale vaughn_xero_(artist) video_games alphys artist_request comic undertale undyne valentine_day alphys anthro bodily_fluids breasts cleavage clothed clothing dress eyewear female flying_sweatdrops glasses mangneto multiple_images non-mammal_breasts open_mouth overweight overweight_female scalie smile solo sweat sweatdrop thick_thighs undertale 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small_breasts sssonic2 undertale undertale_(series) undyne white_background 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 alphys animal_humanoid anthro blue_body blue_skin blush breasts cleavage clothed clothing dialogue digital_media_(artwork) duo english_text eyewear female fish fish_humanoid glasses hair hi_res humanoid humanoid_focus lizard marine marine_humanoid merunyaa ponytail red_hair reptile scalie sharp_teeth simple_background teeth text torn_clothing undertale undertale_(series) undyne white_background 2017 absurd_res accident alphys anthro areola big_breasts big_butt blush bottomless breasts butt cameron_(skunkdude13) canon_x_oc clothed clothing conditional_dnp digitaldomain123 duo erect_nipples facesitting female female_on_top head_between_cheeks hi_res huge_breasts huge_butt larger_female lizard male male/female male_on_bottom nipples non-mammal_breasts non-mammal_nipples on_bottom on_top reptile scalie sitting_on_another size_difference slipping smaller_male undertale undertale_(series) alphys armless better_version_at_source child conditional_dnp earthsong9405 eyewear frisk_(undertale) glasses green_eyes group human 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feet female female/female genitals glasses grey_background heart_symbol lab_coat looking_pleasured merbunnie_(artist) monochrome oral pussy rimming saliva scientist sex simple_background sketch soles teeth toe_claws toes tongue tongue_out topwear undertale undertale_(series) undyne 16:9 alphys animated avoid_posting black_and_white blush bodily_fluids clothing duo embarrassed eye_patch eyewear female fish grin hair korram laugh marine meme meme_clothing monochrome monster open_mouth scalie smile sweater tears topwear undertale undertale_(series) undyne virgin_killer_sweater widescreen alphys anthro areola belly big_areola big_breasts blush breasts cloth clothing eyewear female genitals glasses inuki legwear lizard looking_at_viewer navel nipples nude pussy reptile scalie solo third-party_edit undertale undertale_(series) absurd_res age_difference alphys animated_skeleton anthro asriel_dreemurr bone boss_monster_(undertale) bovid candy caprine chara_(undertale) comic delta_rune_(emblem) dessert dialogue english_text female fire fish food frisk_(undertale) full_moon goat hi_res hot_dog human humanoid lizard long_image mammal marine marshmallow mature_anthro mature_female moon mother_(lore) mother_and_child_(lore) mother_and_son_(lore) night older_female papyrus_(undertale) parent_(lore) parent_and_child_(lore) parent_and_son_(lore) red_eyes reptile sans_(undertale) scalie skeleton son_(lore) symbol tall_image tc-96 teeth text toriel undead undertale undertale_(series) undyne after_vore alphys anthro ask-glutton-alphys belly better_version_at_source big_belly blush eyewear glasses hand_on_belly lizard low_res reptile rumbling_stomach scalie simple_background undertale undertale_(series) vore yellow_body yellow_skin