animated_skeleton basketball bone bottomwear clothed clothing comic dialogue digital_media_(artwork) english_text greyscale hat headgear headwear hi_res humanoid japanese_text jojo's_bizarre_adventure jojo_quote male meme monochrome not_furry papyrus_(font) papyrus_(undertale) parody shorts skeleton solo text undead undertale undertale_(series) unknown_artist
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
2016 absurd_res amalgamate ambient_arthropod ambient_butterfly ambient_flier ambient_insect ambiguous_gender arthropod butterfly canid canine canis creepy domestic_dog eldritch_abomination endogeny english_text everyman female group hi_res insect lemon_bread lepidopteran liquid mammal memoryhead monster nightmare_fuel reaper_bird silvergeki snowdrake's_mother text tongue traditional_media_(artwork) undertale undertale_(series) what_has_magic_done what_has_science_done
abs anthro asriel_dreemurr athletic athletic_anthro athletic_male biped boss_monster_(undertale) bovid caprine clothed clothing front_view genitals goat hi_res horn male mammal navel pecs penis penis_base pinup pose seyrmo signature solo standing stretching topless towel undertale undertale_(series)
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)
:3 ambiguous_gender android anthro clothing cybernetics cyborg darkshreaders eyewear fingerless_gloves gloves gun handwear machine meme parody ranged_weapon robot solo sunglasses t-800_series_(terminator) tem temmie_(undertale) terminator_(franchise) terminator_gun_pose_(meme) terminators_(terminator) the_terminator_(terminator) undertale undertale_(series) weapon
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)
anthro chocorutt clothing female flower grey_hair hair hi_res mammal pattern_clothing pattern_shirt pattern_topwear plant rose_(flower) shirt simple_background solo striped_clothing striped_shirt striped_topwear stripes tem temmie_(undertale) topwear undertale undertale_(series)
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
2016 aquatic clothing dialogue english_text eye_patch eyewear female fish geeflakes gills hair ponytail red_hair sharp_teeth smile solo teeth text undertale undertale_(series) undyne
aftertale animated_skeleton bone clothed clothing comic dialogue door elemental_creature english_text flora_fauna flowey_the_flower loverofpiggies male not_furry plant sans_(undertale) skeleton teeth text undead undertale undertale_(series)
2016 alternate_universe animated_skeleton blush bone bulge clothed clothing comic comic_(under(her)tail) comic_sans crossgender dialogue digital_media_(artwork) english_text exclamation_point female frisk_(undertale) hoodie human humor male mammal not_furry papyrus_(font) papyrus_(undertale) parody pun sans_(undertale) skeleton snow tempus_(under(her)tail) text thewill topwear undead under(her)tail undertale undertale_(series)
aquatic elpandamangrande eye_patch eyewear female fish flat_chested graphite_(artwork) grin hair long_hair membrane_(anatomy) monochrome muscular muscular_female non-mammal_hair shark sharp_teeth simple_background sketch slim smile solo teeth traditional_media_(artwork) undertale undertale_(series) undyne webbed_hands white_background
2016 animal_humanoid aquatic aquatic_humanoid biped black_and_white clothed clothing eye_patch eyewear fangs female fish fish_humanoid hair humanoid kkhoppang long_hair midriff monochrome muscular muscular_female navel open_mouth ponytail scar sharp_teeth simple_background sketch solo standing teeth tongue undertale undertale_(series) undyne
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
anal anus bodily_fluids boots butt clothed clothing crossdressing cum cum_in_ass cum_in_mouth cum_inside cum_on_face cum_on_feet cumshot drag_(fashion) drag_king ejaculation erection feet fellatio femboy foot_fetish foot_play footjob footwear genital_fluids genitals glistening group handjob hi_res high_heeled_boots high_heels humanoid humanoid_genitalia humanoid_penis machine male male/male male_penetrated male_penetrating male_penetrating_male mettaton mettaton_ex not_furry oral orgasm penetration penile penis redcladking robot sex shoes solo_focus two-footed_footjob undertale undertale_(series)
2016 alternate_universe andromorph andromorph/male crossgender digital_media_(artwork) duo femboy gaiki genitals glowing glowing_eyes hair half-closed_eyes humanoid intersex intersex/male long_hair machine male mettaton mettaton_(underfell) mettaton_ex mettaton_ex_(underfell) mta_crossgender mti_crossgender multi_arm multi_eye multi_limb narrowed_eyes not_furry open_mouth robot selfcest sex smile square_crossover tongue tongue_out underfell undertale undertale_(series) vaginal vulva
2016 anthro bratty_(undertale) catty_cattenheimer crocodile crocodilian digital_media_(artwork) domestic_cat felid feline felis female food group heart_symbol hotlegmeme lying machine male male/female mammal mettaton mettaton_ex monochrome open_mouth reptile robot scalie sex spread_legs spreading undertale undertale_(series) vaginal
blush clothed clothing digital_media_(artwork) duo erection femboy genitals glistening gloves hair handwear humanoid humanoid_genitalia humanoid_penis machine male male/male mettaton mettaton_ex not_furry open_mouth penis robot simple_background smile solo_focus text undertale undertale_(series)
2016 android clothed clothing digital_media_(artwork) erection eyeshadow femboy gaiki genitals gloves hair handwear humanoid humanoid_genitalia humanoid_penis looking_at_viewer machine makeup male mettaton mettaton_ex not_furry open_mouth penis red_eyes robot smile solo tongue tongue_out undertale undertale_(series)
anthro black_hair ceiling ceiling_cat cosumik female fur hair mammal meme parody solo tem temmie_(undertale) undertale undertale_(series) white_body white_fur
1:3 absurd_res animated_skeleton bone comic english_text female hi_res humor male pain profanity pun sans_(undertale) serious skeleton tem temmie_(undertale) text undead undertale undertale_(series) unknown_artist
anal anal_fingering anthro anus big_butt black_hair blonde_hair blush bratty_(undertale) butt catty_cattenheimer clothing disembodied_penis domestic_cat duo erection felid feline felis female female/female fingering fingering_partner fur genitals green_body green_scales hair licking lyme-slyme male male/female mammal multicolored_hair paws penis plump_labia presenting_partner purple_body purple_eyes purple_fur reptile scales scalie sex slightly_chubby smile teeth thick_thighs third-party_edit tongue tongue_out two_tone_hair undertale undertale_(series) vulva wide_hips yellow_eyes
absurd_res ambiguous_gender animated_skeleton armor bone clothing gloves handwear headgear helmet hi_res jmw12 nightclub sans_(undertale) skeleton solo undead undertale undertale_(series)
ambiguous_gender animated animated_gif anthro cosumik duo female frisk_(undertale) human longcat mammal meme short_playtime tem temmie_(undertale) undertale undertale_(series)
anthro black_hair cosumik female fur hair mammal meme monorail_cat parody solo tem temmie_(undertale) undertale undertale_(series) white_body white_fur
ambiguous_gender animated animated_gif anthro bodily_fluids dankodeadzone fur grey_body grey_fur mammal meme money reaction_image short_playtime simple_background solo sweat sweating_towel_guy tem temmie_(undertale) undertale undertale_(series) white_background white_body white_fur
2016 absurd_res animated_skeleton anthro aquatic bone comic dialogue english_text female fish frisk_(undertale) haileythesato hi_res human long_image male mammal papyrus_(undertale) skeleton tall_image text undead undertale undertale_(series) undyne
4_toes anthro anus autofootjob back_boob balls barefoot biped blush bodily_fluids bottomwear bottomwear_pull breasts butt canid canine canis clothed clothing clothing_lift clothing_pull cobalt_snow conditional_dnp crossgender crossover cum cumshot dialogue digital_drawing_(artwork) digital_media_(artwork) disney doggo_(undertale) domestic_dog duo ejaculation embarrassed english_text erection feet felid flat_colors foot_fetish foot_play foreskin front_view genital_fluids genitals gynomorph headgear hi_res humanoid_genitalia humanoid_penis intersex inviting jin_(cobalt_snow) judy_hopps lagomorph legs_up leporid locker locker_room looking_at_viewer looking_back looking_pleasured lying male mammal masturbation monochrome mostly_nude multiple_images nipples nude on_back orgasm pantherine pants pants_pull penile penile_masturbation penis penis_poking_out presenting presenting_penis rabbit rear_view reclining retracted_foreskin shirt shirt_lift shower_room signature sitting sketch sniffing sniffing_clothes sniffing_while_masturbating solo solo_focus standing stealth_masturbation talking_to_viewer tank_top text tiger toes topwear towel two-footed_autofootjob undertale undertale_(series) underwear underwear_sniffing unwanted_erection vera_(species) zootopia
2015 anthro blush boss_monster_(undertale) bovid caprine clothing female fur grey_background mammal mothercrow nipple_outline one-piece_swimsuit red_eyes simple_background solo swimwear thick_thighs toriel undertale undertale_(series) white_body white_fur wide_hips
2015 alphys anthro big_butt breasts butt butt_slap duo female huge_butt lizard machine mettaton monochrome mothercrow nipples non-mammal_breasts nude reptile robot scalie scared simple_background slap slightly_chubby small_breasts spanking surprised thick_thighs undertale undertale_(series) wide_hips
2015 alphys anthro anus blush breasts butt disembodied_hand duo eyewear female fingering genitals glasses lizard machine mettaton monochrome mothercrow nipples non-mammal_breasts nude raised_leg raised_tail reptile robot scalie scared simple_background tail undertale undertale_(series) vulva wide_hips
2015 anthro aquatic breasts clothed clothing duo female fish frisk_(undertale) genitals human larger_female male mammal monochrome mothercrow muscular muscular_female nipples nude simple_background size_difference smaller_male undertale undertale_(series) undyne vulva
2016 5:8 absurd_res anthro asriel_dreemurr barefoot biped blush boss_monster_(undertale) bottomwear bovid bracelet caprine clothed clothing crop_top dancing disco eyes_closed family_guy feet femboy front_view goat hi_res jasper_(family_guy) jewelry male mammal midriff open_mouth roarey_raccoon shirt shorts signature simple_background smile solo tank_top topwear undertale undertale_(series) young young_anthro
4:3 anthro asriel_dreemurr bodily_fluids boss_monster_(undertale) bovid caprine child crying flying_fox_(artist) goat male mammal simple_background solo tears undertale undertale_(series) young young_anthro young_male
1:1 2015 animal_print animated_skeleton annoyed anthro barefoot bone bottomwear canid canine canis cheetah_print clothed clothing collar crossed_arms doggo_(undertale) domestic_dog feet frisk_(undertale) frown group human jeneco male mammal pants petting sans_(undertale) shirt sitting skeleton snow spiked_collar spikes tank_top topwear undead undertale undertale_(series)
16:9 ambiguous_gender animated anthro asriel_dreemurr bed boss_monster_(undertale) bovid caprine child cry_(artist) cuddling dialogue duo eyes_closed frisk_(undertale) furniture goat human long_playtime male mammal profanity sleeping sound undertale undertale_(series) video widescreen young young_ambiguous young_anthro young_human young_male
alphys ambiguous_gender angerelic animated_skeleton anthro aquatic asgore_dreemurr asriel_dreemurr asriel_dreemurr_(god_form) beard bodily_fluids bone boss_monster_(undertale) bovid caprine clothing crying digital_media_(artwork) eye_patch eyewear facial_hair fish frisk_(undertale) fur goat group hi_res horn human lol_comments long_ears male mammal melee_weapon mettaton mettaton_ex papyrus_(undertale) sans_(undertale) scalie skeleton smile sword tears toriel undead undertale undertale_(series) undyne weapon white_body white_fur
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