animated_skeleton bone brother_(lore) brothers_(lore) clothed clothed_male clothing colored digital_media_(artwork) duo eyes_closed forest foxtragic fully_clothed fully_clothed_male incest_(lore) kissing kissing_bough light lighting male male/male mistletoe not_furry papyrus_(undertale) plant sans_(undertale) shaded sibling_(lore) skeleton snow tree undead undertale undertale_(series)
anthro big_breasts biped blush boss_monster_(undertale) bovid breast_rest breasts caprine clothed clothing crossed_arms dk- english_text female heart_symbol horn looking_at_viewer mammal simple_background solo standing text toriel undertale undertale_(series)
absurd_res alternate_universe breasts crossgender demon female glistening hair hi_res humanoid lnemdave mammal membrane_(anatomy) membranous_wings mettaton mettaton_(underfell) mettaton_ex_(underfell) not_furry simple_background solo standing underfell undertale undertale_(series) wings
aftertale animated_skeleton bone brother_(lore) brothers_(lore) chara_(undertale) clothed clothing coat comic dialogue english_text human jacket loverofpiggies mammal monster not_furry papyrus_(undertale) plant sans_(undertale) scarf sibling_(lore) skeleton speech_bubble teeth text topwear tree undead undertale undertale_(series) yelling
aftertale animated_skeleton bone brother_(lore) brothers_(lore) chara_(undertale) clothed clothing coat comic dialogue english_text human jacket loverofpiggies mammal monster not_furry open_mouth papyrus_(undertale) sans_(undertale) scarf shocked sibling_(lore) skeleton speech_bubble surprised teeth text topwear undead undertale undertale_(series)
aftertale animated_skeleton bone brother_(lore) brothers_(lore) chara_(undertale) comic dialogue english_text human loverofpiggies mammal monster not_furry papyrus_(undertale) sans_(undertale) shocked sibling_(lore) skeleton speech_bubble surprised teeth text undead undertale undertale_(series)
animal_genitalia animal_penis anthro asriel_dreemurr_(god_form) balls big_balls big_penis bodily_fluids boss_monster_(undertale) bovid caprine condom condom_balloon cum equine_genitalia equine_penis erection excessive_cum excessive_genital_fluids filled_condom genital_fluids genitals huge_balls huge_penis hyper hyper_balls hyper_genitalia hyper_penis male mammal penis precum resting_on_condom sexual_barrier_device solo svadil throbbing undertale undertale_(series)
3:4 accessory anal anal_penetration anthro anus asriel_dreemurr_(god_form) balls black_sclera blush bodypaint boss_monster_(undertale) bovid butt butt_grab caprine cock_ring dialogue duo english_text erection fangs femboy flowey_the_flower foreskin genitals glistening hand_on_butt horn inuzu jewelry male male/male male_penetrated male_penetrating male_penetrating_male mammal one_eye_closed open_mouth partially_retracted_foreskin penetration penis penis_accessory penis_jewelry sex speech_bubble straddling teeth text undertale undertale_(series)
anthro asriel_dreemurr_(god_form) black_sclera boss_monster_(undertale) bovid boxer_briefs brown_hair bulge caprine clothing diamobster digital_media_(artwork) dragon duo goat grey_body grey_scales hair horn koru_(diamobster) lizard mammal mythological_creature mythological_scalie mythology reptile scales scalie tail unavailable_at_source undertale undertale_(series) underwear yellow_sclera
1:1 alternate_universe animated_skeleton blood blue_eyes bodily_fluids bone clothing crying english_text fangs gloves handwear humanoid kerchief male not_furry sans_(undertale) shirt skeleton smolneko solo tears teeth text topwear undead underswap undertale undertale_(series) wounded
animated animated_gif anthro arachnid arthropod blush boss_monster_(undertale) bovid caprine dark duo eyes_closed female female/female fur horn hug kissing mammal muffet multi_arm multi_limb short_playtime sinisk spider toriel undertale undertale_(series) white_body white_fur
aaron_(undertale) alcohol alpha_channel anthro beer beverage biped blush bodily_fluids bottle bottomless clothed clothing container domestic_cat felid feline felis female hi_res interstellarimaginations magazine male mammal monster pawpads pink_pawpads reading shirt sitting solo speech_bubble sweat tem temmie_(undertale) topwear undertale undertale_(series)
asgore_dreemurr beard bodily_fluids boss_monster_(undertale) bovid bridge caprine clothed clothing comic crying duo facial_hair female fur horn japanese_text long_ears male mammal rie_(artist) star tears text toriel translated undertale undertale_(series) white_body white_fur
asgore_dreemurr beard blush boss_monster_(undertale) bovid bridge caprine clothed clothing comic duo facial_hair female fur horn japanese_text long_ears male mammal night rie_(artist) star text toriel translated undertale undertale_(series) white_body white_fur
2016 4:3 5_fingers anthro biped blush breasts brown_body brown_fur digital_media_(artwork) ear_piercing featureless_breasts female fingers flamyphantom1 fur hair looking_at_viewer mammal multi_ear murid murine open_mouth piercing rat rodent simple_background smile solo standing teeth text tongue undertale undertale_(series)
2016 4:3 5_fingers anthro biped breasts digital_media_(artwork) ear_piercing female fingers flamyphantom1 fur greyscale hair looking_at_viewer mammal monochrome murid murine open_mouth piercing rat rodent simple_background smile solo standing teeth text tongue undertale undertale_(series)
absurd_res ankk anthro anthro_penetrated balls big_breasts blush bodily_fluids boss_monster_(undertale) bottomless bovid breasts caprine clothed clothing cowgirl_position cum cum_in_vagina cum_inside duo erection female female_on_human female_on_top female_penetrated first_person_view frisk_(undertale) from_front_position genital_fluids genitals heart_symbol hi_res horn human human_on_anthro human_penetrating human_penetrating_anthro human_penetrating_female human_pov interspecies lactating male male/female male_on_anthro male_on_bottom male_penetrating male_penetrating_anthro male_penetrating_female male_pov mammal mature_anthro mature_female milk nipples on_bottom on_top one_eye_closed open_mouth penetrating_pov penetration penile penile_penetration penis penis_in_vagina pubes sex solo_focus straddling sweat text toriel translated undertale undertale_(series) vaginal vaginal_penetration vulva
2016 absurd_res animated_skeleton aquatic armor black_bars blue_eyes bodily_fluids bone brown_hair clenched_teeth clothed clothed_human clothed_male clothing colored comic comic_sans dialogue digital_media_(artwork) ellipsis english_text exclamation_point eye_patch eyes_closed eyewear female fish foxtragic frisk_(undertale) fully_clothed fully_clothed_human fully_clothed_male gloves glowing glowing_eyes greeting group hair handwear hi_res human humanoid interrobang letterbox long_image male mammal monster not_furry_focus one_eye_closed open_mouth papyrus_(font) papyrus_(undertale) question_mark red_eyes red_hair sans_(undertale) scar scarf sharp_teeth signature skeleton speech_bubble stick sweat tall_image teeth text undead undertale undertale_(series) undyne water weapon
3d_(artwork) 9:16 alien alien_humanoid animal_humanoid anus aquatic aquatic_humanoid balls blue_balls blue_body blue_penis blue_skin breasts cartoon_network clothed clothing crossgender crossover digital_media_(artwork) duo erection female fish fish_humanoid ftg_crossgender fti_crossgender gem_(species) genitals green_body green_skin gynomorph hair hi_res homeworld_gem_uniform humanoid intersex interspecies monster nipples penis peridot_(gem_species) peridot_(steven_universe) red_hair side_boob simple_background size_difference steven_universe text undertale undertale_(series) undyne url vulva wo262
animated animated_gif anthro bench biped book boss_monster_(undertale) bovid caprine clothing eyewear female fur glasses horn long_ears low_res mammal on_bench robe short_playtime sitting smoaer solo thumbnail toriel undertale undertale_(series) white_body white_fur
arachnid arthropod black_hair blush bodily_fluids clothed clothing dress drooling female hair heart_eyes heart_symbol humanoid looking_at_viewer muffet multi_arm multi_eye multi_limb nekuzx open_mouth open_smile pink_tongue purple_background purple_body purple_eyes purple_skin purple_theme ribbons saliva simple_background smile solo spider tongue undertale undertale_(series)
2d_animation 3:4 anal animated animated_gif anthro balls boss_monster_(undertale) bovid canid canine canis caprine duo erection feet female female_penetrated frame_by_frame genitals ice_wolf_(undertale) knot male male/female male_penetrating male_penetrating_female mammal monochrome muscular penetration penis sex short_playtime simple_background smoaer thick_penis toriel undertale undertale_(series) vulva wolf
2016 aged_up anthro asriel_dreemurr ball_suck balls big_balls big_penis black_sclera blackbear bodily_fluids boss_monster_(undertale) bottomless bovid caprine claws clothed clothed/nude clothing dripping duo erection foreskin frisk_(undertale) genital_fluids genitals goat green_eyes grin hair handjob horn huge_balls huge_penis human human_on_anthro humanoid_genitalia humanoid_penis hyper hyper_genitalia hyper_penis interspecies kneeling long_penis lying male male/male mammal muscular nude on_back oral partially_retracted_foreskin penile penis precum precum_drip red_hair retracted_foreskin sex small_but_hung smile sucking thick_penis undertale undertale_(series) vein veiny_penis watermark yellow_eyes
2_toes 3_toes 4_toes 5:3 activision anal anal_penetration animal_humanoid anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro anus areola balls bandicoot big_breasts big_butt biped boss_monster_(undertale) bovid breast_play breasts buru_(jaynatorburudragon) butt capcom caprine cat_humanoid conditional_dnp crash_bandicoot crash_bandicoot_(series) darkstalkers dragon duo erect_nipples erection european_mythology feet felicia_(darkstalkers) felid felid_humanoid feline feline_humanoid female female_penetrated foot_fetish foot_play footjob gaping gaping_anus generation_4_pokemon genitals huge_breasts human human_on_anthro human_penetrating human_penetrating_anthro humanoid interspecies jaynatorburudragon lucario male male/female male_on_anthro male_penetrating male_penetrating_female mammal mammal_humanoid marsupial mature_anthro mature_female multiple_images mythological_creature mythological_scalie mythology nina_cortex nintendo nipple_piercing nipples nude penetration penile penis piercing pillow pokemon pokemon_(species) scalie sex solo solo_focus tail titfuck toes toriel two-footed_footjob undertale undertale_(series) vulva western_dragon wyvern
abs absurd_res aquatic blush bodily_fluids breasts captainjingo comic derp_eyes duo female fingering fish genital_fluids genitals hi_res innie_vulva kissing male male/female non-mammal_breasts third-party_edit undertale undertale_(series) undyne vaginal_fluids vulva
accessory black_and_white bow_(feature) bow_accessory bow_ribbon breasts centered_hair_bow eyelashes female ghost ghost_tail group hair hair_accessory hair_bow hair_ribbon male marina_(noill) monochrome monster_girl_(genre) not_furry o-den open_mouth ribbons smile spirit tongue tongue_out undertale undertale_(series)
accessory black_and_white blush bodily_fluids bow_(feature) bow_accessory bow_ribbon centered_hair_bow eyelashes female ghost ghost_tail group hair hair_accessory hair_bow hair_ribbon heart_symbol male marina_(noill) monochrome monster_girl_(genre) not_furry o-den open_mouth ribbons spirit suggestive sweat symbol-shaped_eyes tongue tongue_out undertale undertale_(series) unusual_eyes x_pupils
accessory anthro black_and_white bodily_fluids boss_monster_(undertale) bovid bow_(feature) bow_accessory bow_ribbon caprine caught_in_the_act centered_hair_bow eyelashes female ghost ghost_tail group hair hair_accessory hair_bow hair_ribbon heart_symbol male mammal marina_(noill) monochrome monster_girl_(genre) o-den ribbons spirit suggestive sweat sweatdrop symbol-shaped_eyes tongue tongue_out toriel undertale undertale_(series) unusual_eyes x_eyes
3:4 anthro asriel_dreemurr boss_monster_(undertale) bovid bovid_horn cape caprine caprine_horn chris_sawyer clothing curved_horn delta_rune_(emblem) goat goat_ears half-length_portrait heart_symbol hi_res horn looking_aside male mammal mane monochrome neutral_expression portrait ridged_horn robe simple_background solo symbol undertale undertale_(series)
animated_skeleton bone brother_(lore) brothers_(lore) butt_slap clothing comic contact_onomatopoeia dialogue digital_media_(artwork) eli-sin-g_(artist) english_text impact_onomatopoeia male not_furry onomatopoeia papyrus_(undertale) sans_(undertale) sibling_(lore) skeleton slap smack_(sound_effect) sound_effects spanking speech_bubble text undead undertale undertale_(series) undressing
angry animated_skeleton blush bodily_fluids bone brother_(lore) brothers_(lore) clothing comic dialogue digital_media_(artwork) eli-sin-g_(artist) ellipsis english_text male not_furry papyrus_(undertale) sans_(undertale) sibling_(lore) skeleton speech_bubble sweat text undead undertale undertale_(series)
4:5 animated_skeleton blush bodily_fluids bone border brother_(lore) brothers_(lore) clothing comic dialogue digital_media_(artwork) eli-sin-g_(artist) ellipsis english_text half_naked imminent_sex male male/male not_furry papyrus_(font) papyrus_(undertale) sans_(undertale) sibling_(lore) skeleton sweat text text_box undead undertale undertale_(series) white_border
anthro anthrofied areola big_breasts breasts fanning fanning_self felid female genitals hair hi_res huge_breasts mammal monochrome nipples nude open_:3 sagging_breasts simple_background solo tail tail_motion tailwag tem temmie_(undertale) undertale undertale_(series) vulva
2015 animated_skeleton bone bottomwear clothed clothing digital_media_(artwork) footwear humanoid male not_furry sans_(undertale) shadow shoes shorts signature skeleion skeleton smile solo standing sweater topwear undead undertale undertale_(series)
2015 animated_skeleton bone bottomwear clothed clothing digital_media_(artwork) fully_clothed heart_symbol humanoid male not_furry one_eye_closed sans_(undertale) shaded shorts signature skeleion skeleton smile solo sweater topwear undead undertale undertale_(series) wink
2015 2:3 animated_skeleton blood bodily_fluids bone bottomwear clothed clothing death digital_media_(artwork) english_text footwear heart_symbol humanoid male not_furry sans_(undertale) shaded shoes shorts signature skeleion skeleton solo sweater text topwear undead undertale undertale_(series) wounded
2016 4:3 action_pose ambiguous_gender anthro aquatic belt bente36 blue_body boots bottomwear brown_hair clothing duo eye_patch eyewear female fish flexing footwear frisk_(undertale) hair human jacket mammal multiple_images pants ponytail pose red_hair shirt shoes short_hair simple_background smile tank_top tomboy topwear undertale undertale_(series) undyne white_background
2016 4:3 ambiguous_gender anthro aquatic bente36 blue_clothing blue_sweater blue_topwear chara_(undertale) clothing english_text female fish frisk_(undertale) green_clothing green_sweater green_topwear group human mammal pattern_clothing pattern_sweater pattern_topwear striped_clothing striped_sweater striped_topwear stripes sweater text topwear undertale undertale_(series) undyne
2016 4:3 ambiguous_gender anthro bente36 blue_clothing blue_sweater blue_topwear chara_(undertale) clothing english_text female frisk_(undertale) glistening green_clothing green_sweater green_topwear group human machine male mammal mettaton mettaton_ex pattern_clothing pattern_sweater pattern_topwear robot striped_clothing striped_sweater striped_topwear stripes sweater text topwear undertale undertale_(series)
2016 4:3 4_toes alphys ambiguous_gender anthro barefoot bente36 blue_clothing blue_sweater blue_topwear blush chara_(undertale) clothing coat english_text eyewear feet female frisk_(undertale) glasses green_clothing green_sweater green_topwear group human lab_coat letter lizard mammal open_mouth pattern_clothing pattern_sweater pattern_topwear reptile scales scalie simple_background striped_clothing striped_sweater striped_topwear stripes sweater teeth text toes topwear undertale undertale_(series) yellow_body yellow_scales
4:5 android anthro asgore_dreemurr ball_gown beard beast_(disney) beauty_and_the_beast belle_(beauty_and_the_beast) boss_monster_(undertale) bovid caprine cosplay crossover dancing disney elemental_creature facial_hair flora_fauna flowey_the_flower group hi_res horn long_ears machine male male/male mammal mature_anthro mature_male mettaton mettaton_ex plant qubelord robot simple_background undertale undertale_(series)
anthro arachnid arthropod boss_monster_(undertale) bovid caprine clothed clothing dress duo eyes_closed fangs female female/female flower fur horn larger_female long_ears mammal muffet multi_arm multi_eye multi_limb plant purple_body purple_skin robe simple_background sitting size_difference smaller_female smile spider teeth toriel undertale undertale_(series) unknown_artist white_background white_body white_fur
2d_animation animated animated_gif anthro anthro_penetrated big_breasts biped blue_eyes blush boss_monster_(undertale) bouncing_breasts bovid breasts caprine clitoris curvy_figure duo erection female female_focus female_on_human female_penetrated frame_by_frame from_front_position fur genitals horn huge_breasts human human_on_anthro human_penetrating human_penetrating_anthro hyper hyper_breasts interspecies lying male male/female male_on_anthro male_penetrating male_penetrating_female mammal missionary_position nipples nude on_back open_mouth patreon patreon_logo penetration penile penile_penetration penis penis_in_vagina sex short_playtime slightly_chubby solo_focus spread_legs spreading third-party_edit toriel toto_draw undertale undertale_(series) vaginal vaginal_penetration voluptuous vulva website_logo white_body white_fur
animal_humanoid arachnid arachnid_humanoid arthropod arthropod_humanoid black_hair cosplay fangs female hair hands_on_hips hi_res hood humanoid khuzang marvel muffet multi_arm multi_eye multi_limb purple_eyes solo spider-gwen spider_humanoid teeth undertale undertale_(series)
2d_animation animated anthro big_breasts blue_eyes blush boss_monster_(undertale) bouncing_breasts bovid breasts caprine clitoris curvy_figure duo erection female female_focus female_penetrated frame_by_frame from_front_position fur genitals horn huge_breasts human human_on_anthro interspecies lying male male/female male_penetrating male_penetrating_female mammal missionary_position nipples no_sound nude on_back open_mouth patreon patreon_logo penetration penile penile_penetration penis penis_in_vagina sex short_playtime slightly_chubby solo_focus spread_legs spreading third-party_edit toriel toto_draw undertale undertale_(series) vaginal vaginal_penetration video voluptuous vulva website_logo white_body white_fur
anthro arms_around_neck artist_name asking asking_another asking_where asriel_dreemurr boss_monster_(undertale) bottomwear bovid caprine chara_(undertale) cloak clothed clothing colored crown dark_souls dialogue duo english_text eyes_closed fromsoftware fur goat happy headgear hood human kneeling knife long_ears long_sleeve_shirt lorian_elder_prince lothric_younger_prince male mammal ningenzoo offscreen_character open_mouth open_smile pants pattern_clothing pattern_shirt pattern_topwear shirt simple_background smile speech_bubble star striped_clothing striped_shirt striped_topwear stripes swinging_arms text topwear undertale undertale_(series) white_background white_body white_fur
alternate_universe ambiguous_gender animated_skeleton blue_eyes bone boots bottomwear clothing crossover footwear generation_1_pokemon gloves handwear heart_symbol hi_res keksbela kerchief nintendo pants pokemon pokemon_(species) sans_(undertale) shell shirt shoes simple_background sitting skeleton smile solo squirtle topwear turtle_shell undead underswap undertale undertale_(series) watermark white_background
ambiguous_gender animated_skeleton bone bottomwear bulbasaur clothing crossover footwear generation_1_pokemon hoodie keksbela legwear lying nintendo not_furry pokemon pokemon_(species) sans_(undertale) shoes shorts skeleton sleeping slippers smile socks solo sound_effects topwear undead undertale undertale_(series) vowelless vowelless_sound_effect watermark zzz
alternate_universe ambiguous_gender animated_skeleton black_sclera bone bottomwear charmander clothing crossover fire flaming_tail footwear generation_1_pokemon gold_(metal) gold_tooth hi_res jacket keksbela nintendo pokemon pokemon_(species) red_eyes sans_(underfell) shoes shorts simple_background skeleton smile sneakers solo sweater tail topwear undead underfell undertale undertale_(series) watermark white_background
animated animated_gif animated_skeleton bone clothed clothing digital_media_(artwork) footwear gaster_blaster glowing glowing_eyes hi_res hiyakim hoodie not_furry sans_(undertale) shoes short_playtime skeleton slippers smile topwear undead undertale undertale_(series)
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