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)
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
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
2015 abs alphys anal anal_penetration anthro anus aquatic areola armwear athletic athletic_female ball_gag bdsm big_breasts blush breasts buttplug clothing da_goddamn_batguy dialogue digital_media_(artwork) dildo dominant double_penetration duo elbow_gloves english_text erect_nipples female female/female female_penetrating fingerless_gloves fish gag gagged garter_straps genitals gloves handwear hi_res kneeling larger_dom larger_penetrated legwear lizard mettaton muscular muscular_female nipples non-mammal_breasts penetration plug_(sex_toy) reptile scalie sex_toy size_difference spread_legs spreading stockings strapon submissive teeth text thigh_highs tomboy undertale undertale_(series) undyne vaginal vaginal_penetration vulva
2015 5_fingers alalampone amalgamate ambiguous_gender black_background black_hair clothed clothing digital_media_(artwork) duo femboy fingers ghost goo_creature goo_transformation hair humanoid low_res machine male melting merging mettaton mettaton_ex multi_eye napstablook nightmare_fuel not_furry robot simple_background spirit transformation undertale undertale_(series) what_has_science_done
amalgamate ambiguous_gender digital_media_(artwork) duo english_text ghost goo_creature goo_transformation low_res machine male melting merging mettaton monster napstablook not_furry on_model open_mouth pixel_(artwork) robot simple_background spirit sprite text transformation undead undertale undertale_(series) unknown_artist what_has_science_done
anthro blush bodily_fluids burgerpants clothed clothing cum dialogue domestic_cat duo english_text erection felid feline felis femboy genital_fluids genitals hair humanoid machine makeup male male/male mammal mettaton mettaton_ex penis smile text toxicgummy undertale undertale_(series)
2016 amalgamate anthro asgore_dreemurr asriel_dreemurr boss_monster_(undertale) bovid caprine clothed clothing depressing digital_media_(artwork) english_text female fur goat goo-connected_lips goo_creature horn looking_at_viewer male mammal melting merging nightmare_fuel open_mouth pixel_(artwork) sad simple_background sprite style_emulation text toriel undertale undertale_(series) unknown_artist what_has_magic_done what_has_science_done white_body white_fur
android blush clothed clothing digital_media_(artwork) duo femboy hair heart_symbol hotlegmeme humanoid machine male male/male mettaton mettaton_ex mettaton_neo monochrome not_furry robot selfcest simple_background square_crossover undertale undertale_(series)
android blush bodily_fluids boots clothed clothing digital_media_(artwork) drag_(fashion) drag_king femboy footwear genital_fluids glistening gloves hair handwear hi_res high_heeled_boots high_heels holding_crotch humanoid machine male mettaton mettaton_ex not_furry omorashi open_mouth peeing robot shoes simple_background solo tongue tongue_out undertale undertale_(series) unknown_artist urine urine_on_ground urine_pool urine_stream watersports
1:1 clothed clothing dialogue digital_media_(artwork) duo english_text explicitly_stated_nonconsent femboy forced genitals hair hi_res humanoid machine male male/male mettaton mettaton_ex not_furry open_mouth penetration penis rape robot sex teeth text undertale undertale_(series)
5:3 alphys animated_skeleton anthro aquatic blush bone breasts clothing digital_media_(artwork) english_text eye_patch eyewear female fish freckles glasses group hair humanoid lizard looking_at_viewer machine male mettaton mettaton_ex nsfwshamecave open_mouth papyrus_(undertale) red_hair reptile sans_(undertale) scalie simple_background skeleton smile teeth text tongue undead undertale undertale_(series) undyne
1:1 ambiguous_gender anal anal_penetration bdsm blush bondage bound clothing dialogue digital_media_(artwork) duo hair hi_res human humanoid japanese_text leash machine mammal mettaton mettaton_ex not_furry open_mouth penetration robot sex smile teeth text tongue tongue_out translation_request undertale undertale_(series)
clothing deadsalesman dress hiding machine male mettaton moon not_furry plant robot solo stage stairs star undertale undertale_(series) vines
ambiguous_gender clothing colorful_theme deadsalesman digital_media_(artwork) duo frisk_(undertale) human machine male mammal mettaton not_furry pattern_clothing pattern_shirt pattern_topwear robot shirt striped_clothing striped_shirt striped_topwear stripes topwear undertale undertale_(series)
ambiguous_gender animated animated_gif aquatic arachnid armless arthropod being_watched bone boss_monster_(undertale) bovid brother_(lore) brothers_(lore) caprine chara_(undertale) disembodied_hand ensoul female fish frisk_(undertale) ghost glowing glowing_eyes hand_on_arm hand_on_head hand_on_shoulder human looking_at_another machine male mammal melee_weapon mettaton monster_kid muffet papyrus_(undertale) pillar polearm robot sans_(undertale) short_playtime sibling_(lore) skeleton spear spider spirit tem temmie_(undertale) toriel undertale undertale_(series) undyne undyne_the_undying weapon
absolutely_everyone absurd_res amalgamate ambiguous_gender animated_skeleton anthro aquatic asgore_dreemurr asriel_dreemurr blonde_hair bone boss_monster_(undertale) bovid canid canine canis caprine chara_(undertale) dogamy dogaressa doggo_(undertale) domestic_dog endogeny female fish flowey_the_flower frisk_(undertale) gaster ghost goat greater_dog grillby group hair hi_res horn human large_group long_ears long_image machine male mammal marytan mettaton moldsmal napstablook onionsan papyrus_(undertale) river_person_(undertale) robot sans_(undertale) skeleton spirit tall_image tem temmie_(undertale) toriel undead undertale undertale_(series) undyne
3:4 blush bored clothed clothing comic digital_media_(artwork) drag_(fashion) drag_king english_text group hair humanoid machine male mettaton mettaton_ex not_furry nsfwshamecave open_mouth robot silhouette sleeping smile solo_focus text underlust undertale undertale_(series)
3:4 android blush clothed clothing comic digital_media_(artwork) english_text eyewear glasses hair humanoid machine male mettaton mettaton_ex not_furry nsfwshamecave offscreen_character open_mouth robot robot_humanoid smile solo text underlust undertale undertale_(series)
3:4 bodily_fluids clothed clothing comic crying digital_media_(artwork) english_text eyewear glasses hair humanoid machine male mettaton mettaton_ex not_furry nsfwshamecave robot tears text underlust undertale undertale_(series)
3:4 animated_skeleton blush bodily_fluids bone clothed clothing comic crying digital_media_(artwork) english_text eyewear glasses group hair humanoid machine male mettaton mettaton_ex not_furry nsfwshamecave robot sans_(undertale) skeleton tears text undead underlust undertale undertale_(series)
3:4 blush bodily_fluids clothed clothing comic crying digital_media_(artwork) english_text hair humanoid machine male mettaton mettaton_ex not_furry nsfwshamecave robot tears text underlust undertale undertale_(series)
android black_hair clothed clothing digital_media_(artwork) drag_(fashion) drag_king femboy hair hair_over_eye hotlegmeme humanoid machine male mettaton mettaton_ex not_furry one_eye_obstructed open_mouth robot smile solo undertale undertale_(series)
alternate_universe clothed clothing digital_media_(artwork) drag_(fashion) drag_king duo fan_character femboy hair humanoid korean_text machine makeup male mettaton mettaton_(underfell) mettaton_ex mettaton_ex_(underfell) multi_arm multi_eye multi_limb not_furry robot selfcest simple_background square_crossover teeth text translated underfell undertale undertale_(series) unknown_artist
2016 boots clothed clothing crossdressing dancing digital_media_(artwork) drag_(fashion) drag_queen femboy footwear glistening gloves hair handwear hi_res high_heeled_boots high_heels holding_fixture hotlegmeme humanoid legwear looking_at_viewer machine male mettaton mettaton_ex not_furry performance pole pole_dancing robot shoes solo stripper_pole thigh_boots thigh_highs undertale undertale_(series) underwear
anal anal_penetration animal_humanoid backsack balls bedroom_eyes blush butt buttplug cat_humanoid clothed clothing collar felid felid_humanoid feline feline_humanoid femboy genitals hair half-closed_eyes humanoid looking_at_viewer machine male mammal mammal_humanoid mettaton mettaton_ex narrowed_eyes nude penetration plug_(sex_toy) robot seductive sex_toy simple_background smile solo text tongue tongue_out undertale undertale_(series)
1:1 ambiguous_gender blush bodily_fluids cum digital_media_(artwork) duo genital_fluids ghost hair happstablook heart_symbol looking_at_viewer male not_furry open_mouth simple_background smile solo soulplay spirit undertale undertale_(series) white_background
ambiguous_gender digital_media_(artwork) duo ghost hair happstablook heart_symbol hi_res not_furry open_mouth sex simple_background spirit undertale undertale_(series) white_background
2016 5:4 android boots butt clothed clothing doomthewolf english_text femboy footwear glistening hair hair_over_eye half-closed_eyes high_heeled_boots high_heels humanoid long_hair looking_at_viewer machine male mettaton mettaton_ex monochrome narrowed_eyes not_furry one_eye_obstructed open_mouth robot robot_humanoid shadow shoes simple_background sitting sketch smile solo teeth text tongue undertale undertale_(series) url white_background
accessory alphys anthro aquatic arachnid armless arthropod asgore_dreemurr asriel_dreemurr beard bluemaroonss bone boss_monster_(undertale) bovid bow_(feature) bow_accessory bow_ribbon brother_(lore) brothers_(lore) cape caprine clothing container cousins_(lore) crown cup digital_media_(artwork) electronics eyewear facial_hair fish flower flowey_the_flower frisk_(undertale) gesture ghost glasses goat group hair_accessory hair_bow hair_ribbon headgear headphones hi_res horn human lizard machine mammal mettaton mettaton_ex monster_kid muffet napstablook papyrus_(undertale) plant reptile ribbons robot sans_(undertale) scalie sibling_(lore) skeleton spider spirit teapot toriel twin_bows twin_hair_bows umbrella undertale undertale_(series) undyne waving
anal anal_penetration animated_skeleton bdsm blush bodily_fluids bondage bone bound clothed clothing cum digital_media_(artwork) duo erection femboy genital_fluids genitals hair heart_symbol humanoid long_hair machine male male/male male_penetrated male_penetrating male_penetrating_male mettaton mettaton_ex not_furry open_mouth orgasm papyrus_(undertale) penetration penis robot sex skeleton smile tongue tongue_out undead undertale undertale_(series) yamsgarden
2016 alphys android animated_skeleton anthro aquatic asriel_dreemurr blue_clothing blue_sweater blue_topwear bone boss_monster_(undertale) bovid caprine chara_(undertale) chugiya clothing dakimakura dakimakura_design elemental_creature female fish flora_fauna flower flower_creature flowey_the_flower food frisk_(undertale) goat green_clothing green_sweater green_topwear group heart_symbol human humanoid ketchup kissing machine male mammal mettaton mettaton_ex pattern_clothing pattern_sweater pattern_topwear plant reptile robot romantic romantic_couple sans_(undertale) scalie selfcest simple_background skeleton square_crossover striped_clothing striped_sweater striped_topwear stripes sweater topwear undead undertale undertale_(series) undyne
1:1 ambiguous_gender blush digital_media_(artwork) duo ghost hair happstablook heart_symbol incest_(lore) low_res napstablook not_furry open_mouth sex simple_background smile spirit undertale undertale_(series) white_background
4:5 anthro boots canid canine canis clothing drag_(fashion) duo footwear fur glistening grey_body grey_fur heart_symbol ice_wolf_(undertale) lifting machine male mammal meter mettaton mettaton_ex potatudoodles robot shoes simple_background sparkles star undertale undertale_(series) wolf
alphys ambiguous_gender anthro aquatic asgore_dreemurr bone boss_monster_(undertale) bovid brother_(lore) brothers_(lore) caprine elemental_creature female fire fish flora_fauna flower flowey_the_flower frisk_(undertale) group horn human lizard machine male mammal melee_weapon mettaton napstablook papyrus_(undertale) plant polearm reptile robot sans_(undertale) scalie sibling_(lore) silhouette simple_background skeleton spear temmie_chang toriel trident undertale undertale_(series) undyne weapon
accessory alphys ambiguous_gender animated animated_gif annoying_dog_(undertale) anthro aquatic arachnid armless arthropod asgore_dreemurr asriel_dreemurr beard bedsheet_ghost beverage blonde_hair book boss_monster_(undertale) bovid bow_(feature) bow_accessory bow_ribbon burgerpants canid canine canis cape caprine clothing confetti dessert domestic_cat domestic_dog dummy elemental_creature eye_patch eyewear facial_hair felid feline felis female fish flora_fauna flower flower_creature flowey_the_flower food frisk_(undertale) fur ghost glasses goat greater_dog group hair hair_accessory hair_bow hair_ribbon hat headgear headwear horn hot_dog human jester lagomorph leporid lizard long_ears machine mad_dummy male mammal mettaton monster_kid mouse muffet murid murine mustache napstablook nicecream_man papyrus_(undertale) pasta pastry pie plant rabbit red_hair reptile ribbons robot rodent scalie scarf short_playtime simple_background spaghetti spider spirit stick tea teapot tem temmie_(undertale) toriel twin_bows twin_hair_bows undertale undertale_(series) undyne unoobang white_background white_body white_fur
1:2 accessory android better_version_at_source black_hair clothed clothing cosplay crossover david_bowie david_bowie_(artist) drag_(fashion) drag_king full-length_portrait gloves hair hair_over_eye handwear hi_res humanoid irreplaceable_bvas looking_at_viewer machine male mettaton mettaton_ex mrgwynplaine necktie not_furry one_eye_obstructed portrait real_world reflection robot robot_humanoid smile solo standing suit undertale undertale_(series)
alpha_channel anthro blue_body blue_fur canid canine canis clothing crop_top crossover dbkit domestic_cat domestic_dog dreadlocks electronics elemental_creature elemental_humanoid english_text eye_contact felid feline felis female flora_fauna flower flower_creature flower_humanoid fur grin group hi_res humanoid katy_kat looking_at_another machine male mammal mettaton microphone midriff parappa parappa_the_rapper petting plant plant_humanoid robot shirt simple_background smile sony_corporation sony_interactive_entertainment sunny sunny_funny text topwear transparent_background undertale undertale_(series)
android animated animated_gif bodily_fluids drag_(fashion) erection femboy genital_fluids genitals glistening glowing glowing_genitalia glowing_penis humanoid humanoid_genitalia humanoid_penis inviting looking_at_viewer machine male masturbation metal_penis mettaton mettaton_ex not_furry penile penile_masturbation penis precum robot short_playtime smuttywitch solo undertale undertale_(series)
clothing digital_media_(artwork) drag_(fashion) drag_queen english_text erection femboy genitals glistening hair hair_over_eye humanoid machine male mettaton mettaton_ex not_furry one_eye_obstructed open_mouth penis robot simple_background smile solo sparkles text undertale undertale_(series)
2016 blush clothed clothing crossdressing dialogue digital_media_(artwork) english_text femboy gaiki machine male mettaton not_furry robot solo text undertale undertale_(series)
blush cross digital_media_(artwork) disembodied_penis drag_(fashion) drag_king erection femboy genitals hair heart_symbol humanoid intersex machine male maleherm mettaton mettaton_ex not_furry penetration penis robot simple_background smile solo tongue undertale undertale_(series) white_background
blush bodily_fluids cum eyelashes female genital_fluids ghost hair happstablook not_furry pink_body smile solo spirit undertale undertale_(series)
4_legs alien big_breasts black_and_white breasts davidsanchan digital_media_(artwork) english_text female humanoid jerry_(undertale) monochrome monster multi_leg multi_limb not_furry nude simple_background solo text undertale undertale_(series) what why
3:2 animated_skeleton bone clothed clothing dialogue digital_media_(artwork) drag_(fashion) drag_king duo english_text erection femboy genitals hair humanoid machine male male/male mettaton mettaton_ex monochrome not_furry open_mouth penis robot sans_(undertale) simple_background skeleton smile teeth text undead undertale undertale_(series) unknown_artist white_background
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