2015 alternate_universe animated_skeleton anthro aquatic asgore_(underfell) bone boss_monster_(undertale) bovid caprine chibimu clothing doctor_alphys_(underfell) english_text eyewear female fish fur glasses group happy horn male mammal mettaton_(underfell) mettaton_ex_(underfell) papyrus_(underfell) sans_(underfell) skeleton smile teeth text toriel_(underfell) undead underfell undertale undertale_(series) undyne_(underfell) white_body white_fur
2015 4:5 alternate_universe anthro asgore_(underfell) boss_monster_(undertale) bovid caprine chibimu color_contrast fur horn looking_at_viewer looking_back male mammal red_eyes simple_background solo underfell undertale undertale_(series) warm_colors white_background white_body white_fur
1:1 alternate_universe ambiguous_penetration anthro asgore_(underfell) bodily_fluids boss_monster_(undertale) bovid breasts caprine drawg_t duo facial_hair female female_penetrated horn japanese_text male male/female male_penetrating male_penetrating_female mammal mature_anthro mature_female mature_male nude open_mouth orgasm penetration sex simple_background sweat text toriel_(underfell) underfell undertale undertale_(series)
4:3 age_difference alternate_universe anal anal_penetration anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro armlet asgore_(underfell) asriel_dreemurr_(god_form) beard blush bodily_fluids boss_monster_(undertale) bovid caprine crying dialogue dominant dominant_male duo facial_hair father_(lore) father_and_child_(lore) father_and_son_(lore) forced from_front_position horn incest_(lore) japanese_text long_ears lying male male/male male_penetrated male_penetrating male_penetrating_male male_rape male_raped male_raping_male mammal mating_press mature_male missionary_position monochrome mustache older_male older_penetrated on_back parent_(lore) parent_and_child_(lore) parent_and_son_(lore) penetration penile penile_penetration pyon_nyan rape sex son_(lore) son_dom_father_sub son_penetrating_father submissive submissive_male tears text translation_check underfell undertale undertale_(series) younger_male
1:1 2017 abs absurd_res alternate_universe anso/rez anthro armpit_hair asgore_(underfell) asgore_dreemurr balls barazoku bdsm beard biceps black_hair blonde_hair blue_eyes bodily_fluids body_hair bondage boss_monster_(undertale) bound bovid bulge butt caprine chest_hair clothed clothing collar crying detailed_bulge digital_media_(artwork) dominant dominant_male duo erection facial_hair fangs flower fur garden genital_fluids genital_outline genitals grin hair hair_grab hairy hairy_balls half-erect hi_res horn humanoid_genitalia humanoid_penis kneeling leash long_ears male male/male mammal mature_anthro mature_male musclegut muscular muscular_dom muscular_male muscular_sub nude pecs penis penis_outline plant precum pubes red_eyes scar selfcest smile square_crossover stained_glass_window submissive submissive_male tears teeth thong topless touching_hair underfell undertale undertale_(series) underwear vines white_body white_fur window
1:1 5_fingers alternate_universe animasanimus anthro anus asgore_(underfell) asgore_dreemurr autofellatio balls beard big_muscles big_pecs biped black_penis boss_monster_(undertale) bovid butt caprine crown erection facial_hair fingers flexible flower genitals hair headgear hi_res horn huge_pecs humanoid_genitalia humanoid_penis king legs_behind_head legs_up long_ears long_hair lying male mammal masturbation mature_anthro mature_male moan muscular muscular_anthro muscular_male mustache nipples nude on_back open_mouth oral oral_masturbation pecs penile penile_masturbation penis perineum plant presenting presenting_anus presenting_hindquarters red_eyes red_hair royalty saggy_balls solo spread_butt spreading underfell undertale undertale_(series) white_body white_skin
2018 4_fingers alternate_universe anthro areola asgore_(underfell) asgore_dreemurr bald_crotch balls barefoot beard big_areola big_breasts big_nipples biped blonde_hair blonde_pubes blush body_hair boss_monster_(undertale) bovid breasts brown_hair brown_pubes buttdawg caprine casual_nudity crotch_lines digital_media_(artwork) erection facial_hair feet female fingers foreskin fur genitals glans group hair happy_trail heterochromia hi_res horn humanoid_genitalia humanoid_penis humanoid_vulva innie_vulva long_ears male mammal mature_anthro mature_female mature_male monotone_body monotone_breasts monotone_fur monotone_hair monotone_pubes navel nipple_piercing nipples nude overweight overweight_female overweight_male partially_retracted_foreskin penis piercing pink_areola pink_glans pink_nipples pubes pubic_mound red_eyes scar simple_background social_nudity standing toriel toriel_(underfell) underfell undertale undertale_(series) vein veiny_penis vulva white_background white_balls white_body white_breasts white_fur white_penis yellow_sclera
alphanox anthro asgore_(underfell) clothing dungeon facial_hair male melee_weapon monochrome muscular polearm scythe solo undertale undertale_(series) underwear weapon
age_difference alternate_universe anal anal_penetration anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro aquatic asgore_(underfell) asgore_dreemurr balls beard black_hair blue_body blush bodily_fluids bovid breasts butt butt_grab caprine claws crown cum cum_in_ass cum_inside detailed_background duo eye_patch eyes_closed eyewear facial_hair fangs female female_penetrated fish from_front_position fur genital_fluids genitals goat hair hairy hand_on_butt headgear horn interspecies long_ears looking_pleasured lying male male/female male_penetrating male_penetrating_female mammal mastery_position mature_anthro mature_male muscular muscular_female nipples older_male on_bottom on_top open_mouth orgasm orgasm_face penetration penile penile_penetration penis penis_in_ass pyrogina red_eyes red_hair scar sex sweat teeth tongue underfell undertale undertale_(series) undyne vein veiny_penis white_body white_fur younger_female
age_difference alternate_universe anthro anthro_on_anthro aquatic asgore_(underfell) asgore_dreemurr beard black_hair blue_body blush bodily_fluids bovid breasts caprine claws collar dominant dominant_male duo eye_patch eyewear facial_hair fangs female female_penetrated fish from_behind_position fur genitals goat hair horn interspecies larger_male long_ears looking_pleasured male male/female male_penetrating male_penetrating_female mammal mature_anthro mature_male muscular muscular_female nipples older_male open_mouth open_smile orgasm orgasm_face penetration penis pyrogina red_eyes red_hair saliva scar sex simple_background size_difference smile submissive submissive_female teeth tongue underfell undertale undertale_(series) undyne white_body white_fur younger_female
2022 3d_(artwork) 4k 9:16 absurd_res alternate_universe anthro areola arm_hair artist_name asgore_(underfell) asgore_dreemurr balls beard biceps big_balls big_penis black_hair blonde_hair body_hair boss_monster_(undertale) bovid caprine chest_hair clenched_teeth darkflash23 detailed_background digital_media_(artwork) duo eye_roll eyebrows facial_hair father_dom_son_sub fingers fucked_silly fur genitals goat hair hairy hand_on_penis handjob hi_res horn hug hugging_another hugging_from_behind humanoid_genitalia humanoid_hands humanoid_penis jerked_silly leg_hair long_ears male male/male mammal mature_anthro mature_male muscular muscular_anthro muscular_male nipples nude obscured_penetration obscured_sex pecs penetration penile penis raised_eyebrows reach_around red_eyes scar selfcest sex sharp_teeth short_hair simple_eyes slightly_chubby smile source_filmmaker_(artwork) square_crossover standing teeth text tongue tongue_out underfell undertale undertale_(series) watermark white_body white_fur yellow_sclera
ambysweetdragon arthropod asgore_(underfell) bovid caprine goat hornet humanoid hymenopteran insect male mammal muscular muscular_male pecs solo undertale undertale_(series) vespid wasp
alternate_universe anal anal_penetration anthro anus areola asgore_(underfell) assmore_derear avian balls beak bed bedroom big_areola big_breasts big_butt big_penis bird black_hair blush bodily_fluids boss_monster_(undertale) bovid breasts breath butt candle caprine choker crossgender crossover crown crying cum cum_in_ass cum_in_vagina cum_inside darkriallet detailed_background dominant dominant_gynomorph dominant_intersex double_penetration eyelashes feathers female female_penetrated floppy_ears fluffy fluffy_tail ftg_crossgender fti_crossgender fur furniture genital_fluids genitals goat group gynomorph gynomorph/female gynomorph_penetrating gynomorph_penetrating_female hair headgear hellaverse helluva_boss hi_res horn intersex intersex/female intersex_penetrating intersex_penetrating_female jewelry long_ears looking_pleasured mammal motion_lines mtg_crossgender mti_crossgender muscular muscular_gynomorph muscular_intersex necklace nipples nude on_bed owl owl_demon pawpads penetration penis pupils red_eyes red_sclera sex smile stella_(helluva_boss) tail tears thick_thighs tongue tongue_out toriel_(underfell) trio underfell undertale undertale_(series) vaginal vaginal_penetration white_body white_feathers white_fur white_pupils yellow_sclera
absurd_res alternate_universe anthro asgore_(underfell) asgore_dreemurr beard bovid cape caprine clothing facial_hair goat hi_res horn long_ears male mammal siyeqi solo underfell undertale_(series)
alternate_universe altertale anthro asgore_(altertale) asgore_(storyshift) asgore_(underfell) asgore_(underswap) asgore_dreemurr beverage blush bone boss_monster_(undertale) bouquet cake deltarune dessert digital_media_(artwork) dracozhilla duo flower flower_bouquet food hi_res hug humanoid kissing larger_male looming male male/male pixel_(artwork) plant sans_(altertale) sans_(storyshift) sans_(underfell) sans_(underswap) sans_(undertale) size_difference skeleton slightly_chubby smaller_male storyshift tacos tea underfell underswap undertale_(series)
alternate_universe ambiguous_gender animal_humanoid anthro asgore_(underfell) asgore_(underswap) asgore_dreemurr beverage boss_monster_(undertale) canid canine cat_humanoid deltarune digital_media_(artwork) dirt dracozhilla duo embarrassed felid felid_humanoid feline feline_humanoid female ghost hi_res hug humanoid larger_female larger_male mad_dummy male male/female mammal mammal_humanoid melee_weapon mew_mew_(undertale) pigtails pixel_(artwork) polearm size_difference slightly_chubby smaller_female smaller_male spirit tea training_dummy trident underfell underswap undertale undertale_(series) weapon
absurd_res alternate_universe anal anal_penetration asgore_(underfell) asgore_dreemurr beard belly belly_squish bodily_fluids bovid caprine cum cum_in_ass cum_inflation cum_inside dominant duo facial_hair genital_fluids goat hi_res horn human impregnation impregnation_kink inflation larger_dom leaking_cum male male/male mammal moobs muscular muscular_male overweight overweight_male ovum penetration penile penile_penetration penis_in_ass pregnant pregnant_male questionable_consent sex size_difference squish tears underfell undertale undertale_(series) weonraro123
absurd_res alternate_universe animal_humanoid anthro asgore_(underfell) asgore_dreemurr beard blonde_hair body_hair boss_monster_(undertale) bovid bovine caprine chest_hair digital_media_(artwork) duo facial_hair fur goat hair hi_res horn humanoid long_ears male male/male mammal mature_male muscular nipples nude pecs red_eyes the_nick.r underfell undertale undertale_(series) white_body white_fur
abdominal_bulge absurd_res anal anal_penetration anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro asgore_(underfell) asgore_dreemurr background_character balls beard big_balls big_muscles big_penis bodily_fluids bovid caprine carrying_another carrying_partner cthulhu cthulhu_mythos cum cum_in_ass cum_inflation cum_inside dominant duo ejaculation eldritch_abomination facial_hair genital_fluids genitals goat h._p._lovecraft hair heart_symbol hi_res huge_balls huge_penis huge_thighs human impregnation inflation lactating lactating_during_sex larger_dom male male/male male_impregnating_male male_impregnation male_lactation mammal musclegut muscular muscular_anthro muscular_male overweight overweight_anthro overweight_male ovum penetration penis pregnant pregnant_male public public_sex sex size_difference smaller_penetrated sperm_cell thick_thighs train undertale_(series) vehicle weonraro123
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