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alternate_universe anal anal_sex anthro anus areola asgore_(underfell) asgore_au asmore ass avian balls beak bed bedroom big_areola big_breasts big_butt big_penis bird black_hair blush bodily_fluids boss_monster bovid breasts breath candle caprine choker crossover crown crying cum cum_in_ass cum_in_pussy cum_inside darkriallet deep_penetration detailed_background dickgirl/female dominant dominant_gynomorph dominant_intersex double_penetration double_team double_teamed eyelashes feathers female female_penetrated floppy_ears fluffy fluffy_tail ftg_crossgender fti_crossgender fur furniture futa_on_female futadom futanari futanari/female genital_fluids genitals goat group gynomorph gynomorph/female gynomorph_penetrating gynomorph_penetrating_female hair headgear helluva_boss hi_res horn intersex intersex/female intersex_penetrating intersex_penetrating_female jewelry long_ears looking_pleasured mammal mmm_threesome motion_lines mtg_crossgender mti_crossgender muscular muscular_gynomorph muscular_intersex naked necklace nipples nude on_bed owl owl_demon pawpads penetration penis pupils queen_asmore red_eyes red_sclera rule_63 sex smile stella_(helluva_boss) tail tears thick_thighs tongue tongue_out toriel_(underfell) toriel_au trio under_her_tail underfell undertale undertale_(series) undertale_au vaginal_penetration white_body white_feathers white_fur white_pupils yellow_sclera
alternate_universe anal anal_sex anthro anus areola asgore_(underfell) asgore_au asmore ass avian balls beak bed bedroom big_areola big_breasts big_butt big_penis bird black_hair blush bodily_fluids boss_monster bovid breasts breath candle caprine choker crossover crown crying cum cum_in_ass cum_in_pussy cum_inside darkriallet deep_penetration detailed_background dickgirl/female dominant dominant_gynomorph dominant_intersex double_penetration double_team double_teamed eyelashes feathers female female_penetrated floppy_ears fluffy fluffy_tail ftg_crossgender fti_crossgender fur furniture futa_on_female futadom futanari futanari/female genital_fluids genitals goat group gynomorph gynomorph/female gynomorph_penetrating gynomorph_penetrating_female hair headgear helluva_boss hi_res horn intersex intersex/female intersex_penetrating intersex_penetrating_female jewelry long_ears looking_pleasured mammal mmm_threesome motion_lines mtg_crossgender mti_crossgender muscular muscular_gynomorph muscular_intersex naked necklace nipples nude on_bed owl owl_demon pawpads penetration penis pupils queen_asmore red_eyes red_sclera rule_63 sex smile stella_(helluva_boss) tail tears thick_thighs tongue tongue_out toriel_(underfell) toriel_au trio under_her_tail underfell undertale undertale_(series) undertale_au vaginal_penetration white_body white_feathers white_fur white_pupils yellow_sclera
2022 3d 3d_(artwork) absurd_res alternate_universe anthro areola arm_hair artist_name asgore_(underfell) asgore_au asgore_dreemurr asgorecest balls bara beard biceps big_balls big_penis black_hair blonde_hair body_hair boss_monster bovid caprine chest_hair darkflash23 detailed_background digital_media_(artwork) duo embrace facial_hair fingers fur gay genitals goat hair hand_on_penis handjob hi_res horn hug hugging_from_behind leg_hair long_ears male male/male male_only mammal mature_anthro mature_male muscular muscular_anthro muscular_male nipples nude penile penis red_eyes scar selfcest sex sharp_teeth short_hair simple_eyes slightly_chubby smile source_filmmaker square_crossover standing teeth tongue tongue_out underfell undertale undertale_(series) undertale_au video_games watermark white_body white_fur yaoi yellow_sclera
2022 3d 3d_(artwork) absurd_res alternate_universe anthro areola arm_hair artist_name asgore_(underfell) asgore_au asgore_dreemurr asgorecest balls bara beard biceps big_balls big_penis black_hair blonde_hair body_hair boss_monster bovid caprine chest_hair darkflash23 detailed_background digital_media_(artwork) duo embrace facial_hair fingers fur gay genitals goat hair hand_on_penis handjob hi_res horn hug hugging_from_behind leg_hair long_ears male male/male male_only mammal mature_anthro mature_male muscular muscular_anthro muscular_male nipples nude penile penis red_eyes scar selfcest sex sharp_teeth short_hair simple_eyes slightly_chubby smile source_filmmaker square_crossover standing teeth tongue tongue_out underfell undertale undertale_(series) undertale_au video_games watermark white_body white_fur yaoi yellow_sclera
age_difference alternate_universe anthro anthro_on_anthro asgore_(underfell) asgore_au asgore_dreemurr black_hair blue_body blush bodily_fluids bovid breasts caprine claws collar dominant dominant_male duo eye_patch eyepatch eyewear fangs female fish fur furry genitals goat horn interspecies looking_pleasured male mammal marine mature_anthro mature_male muscular muscular_female nipples older_male open_mouth open_smile orgasm orgasm_face penis pyrogina red_eyes red_hair saliva scar sex simple_background size_difference smile stomach_bulge straight submissive submissive_female tongue underfell undertale undertale_(series) undertale_au undyne undyne_(underfell) undyne_au white_fur younger_female
age_difference alternate_universe anthro anthro_on_anthro asgore_(underfell) asgore_au asgore_dreemurr black_hair blue_body blush bodily_fluids bovid breasts caprine claws collar dominant dominant_male duo eye_patch eyepatch eyewear fangs female fish fur furry genitals goat horn interspecies looking_pleasured male mammal marine mature_anthro mature_male muscular muscular_female nipples older_male open_mouth open_smile orgasm orgasm_face penis pyrogina red_eyes red_hair saliva scar sex simple_background size_difference smile stomach_bulge straight submissive submissive_female tongue underfell undertale undertale_(series) undertale_au undyne undyne_(underfell) undyne_au white_fur younger_female
age_difference alternate_universe anal anthro anthro_on_anthro asgore_(underfell) asgore_au asgore_dreemurr ass ass_grab black_hair blue_body blush bodily_fluids bovid breasts caprine claws closed_eyes crown cum cum_in_ass cum_inside detailed_background duo eye_patch eyepatch eyewear fangs female fish from_front_position fur furry genital_fluids genitals goat horn interspecies looking_pleasured lying male mammal marine mastery_position mature_anthro mature_male muscular muscular_female nipples older_male on_bottom on_top open_mouth orgasm orgasm_face penis pyrogina red_eyes red_hair scar sex size_difference straight sweat testicles tongue underfell undertale undertale_(series) undertale_au undyne undyne_(underfell) undyne_au vein veiny_penis white_fur younger_female
age_difference alternate_universe anal anthro anthro_on_anthro asgore_(underfell) asgore_au asgore_dreemurr ass ass_grab black_hair blue_body blush bodily_fluids bovid breasts caprine claws closed_eyes crown cum cum_in_ass cum_inside detailed_background duo eye_patch eyepatch eyewear fangs female fish from_front_position fur furry genital_fluids genitals goat horn interspecies looking_pleasured lying male mammal marine mastery_position mature_anthro mature_male muscular muscular_female nipples older_male on_bottom on_top open_mouth orgasm orgasm_face penis pyrogina red_eyes red_hair scar sex size_difference straight sweat testicles tongue underfell undertale undertale_(series) undertale_au undyne undyne_(underfell) undyne_au vein veiny_penis white_fur younger_female
1boy 1girls 2020 alternate_color alternate_universe anthro anthro_only anus areola asgore_(swapfell) asgore_au asgore_dreemurr asgoriel ass bed big_breasts big_penis blonde_pubes blush bodily_fluids body_hair boss_monster bovid breasts caprine chubby_female covering_face crown duo erection female female_focus fingers floppy_ears fur furniture genitals goat grey_body grey_fur holding_leg horn humanoid_genitalia humanoid_penis male male_focus mammal mature_female nipples nude open_mouth penis pubes pussy sex simple_background slightly_chubby small_tail smush-sin spread_legs spreading straight swapfell sweat thick_thighs toriel toriel_(swapfell) toriel_au undertale undertale_au undertale_fanfiction unseen_male_face video_games white_body white_fur
1boy 1girls 2020 alternate_color alternate_universe anthro anthro_only anus areola asgore_(swapfell) asgore_au asgore_dreemurr asgoriel ass bed big_breasts big_penis blonde_pubes blush bodily_fluids body_hair boss_monster bovid breasts caprine chubby_female covering_face crown duo erection female female_focus fingers floppy_ears fur furniture genitals goat grey_body grey_fur holding_leg horn humanoid_genitalia humanoid_penis male male_focus mammal mature_female nipples nude open_mouth penis pubes pussy sex simple_background slightly_chubby small_tail smush-sin spread_legs spreading straight swapfell sweat thick_thighs toriel toriel_(swapfell) toriel_au undertale undertale_au undertale_fanfiction unseen_male_face video_games white_body white_fur
1boy 1girls 2020 alternate_universe anthro anthro_only anus asgore_(swapfell) asgore_au asgore_dreemurr asgoriel ball_fondling balls beard big_penis blonde_hair blonde_pubes blush bodily_fluids body_hair boss_monster bovid cape caprine chest_hair clothed clothing cum cum_on_face cum_on_penis duo erection facial_hair female fluffy_ears fondling fur genital_fluids genitals goat grey_body grey_fur hair handjob heart hood horn humanoid_genitalia humanoid_penis long_ears looking_pleasured male male_focus mammal mature_male mostly_nude musclegut nipples nude open_mouth partially_clothed penile penis perineum red_eyes sex simple_background sitting slightly_chubby smush-sin solo spread_legs spreading straight swapfell toriel toriel_(swapfell) toriel_au undertale undertale_au video_games white_background white_body white_fur
1boy 1girls 2020 alternate_universe anthro anthro_only anus asgore_(swapfell) asgore_au asgore_dreemurr asgoriel ball_fondling balls beard big_penis blonde_hair blonde_pubes blush bodily_fluids body_hair boss_monster bovid cape caprine chest_hair clothed clothing cum cum_on_face cum_on_penis duo erection facial_hair female fluffy_ears fondling fur genital_fluids genitals goat grey_body grey_fur hair handjob heart hood horn humanoid_genitalia humanoid_penis long_ears looking_pleasured male male_focus mammal mature_male mostly_nude musclegut nipples nude open_mouth partially_clothed penile penis perineum red_eyes sex simple_background sitting slightly_chubby smush-sin solo spread_legs spreading straight swapfell toriel toriel_(swapfell) toriel_au undertale undertale_au video_games white_background white_body white_fur
2018 2boys 2girls 4_fingers alternate_universe anthro anthro_only asgore_(underfell) asgore_au asgore_dreemurr balls beard big_breasts biped blonde_hair blush boss_monster bovid breasts buttdawg caprine chubby clothing digital_media_(artwork) erection facial_hair female fingers fur genitals hair heterochromia hi_res horn horns long_ears male mammal mature_female muscular nipple_piercing nipples nude nude_male penis piercing red_eyes scar simple_background standing toriel toriel_(underfell) toriel_au underfell undertale undertale_au undertale_fanfiction video_games white_background white_body white_fur yellow_sclera
2018 2boys 2girls 4_fingers alternate_universe anthro anthro_only asgore_(underfell) asgore_au asgore_dreemurr balls beard big_breasts biped blonde_hair blush boss_monster bovid breasts buttdawg caprine chubby clothing digital_media_(artwork) erection facial_hair female fingers fur genitals hair heterochromia hi_res horn horns long_ears male mammal mature_female muscular nipple_piercing nipples nude nude_male penis piercing red_eyes scar simple_background standing toriel toriel_(underfell) toriel_au underfell undertale undertale_au undertale_fanfiction video_games white_background white_body white_fur yellow_sclera
2018 alternate_universe angry artist_name asgore_(underfell) asgore_au asgore_dreemurr bara black_hair body_hair boss_monster bovid boxers_(clothing) broken_horn caprine chest_hair clothing dialogue english_text fangs fur goat hair happy_trail horns male male_only mammal moobs mostly_nude penis presenting presenting_penis pubes red_eyes slightly_chubby text thelionsinner underfell undertale undertale_au undertale_fanfiction underwear video_games white_fur yellow_sclera
2018 alternate_universe angry artist_name asgore_(underfell) asgore_au asgore_dreemurr bara black_hair body_hair boss_monster bovid boxers_(clothing) broken_horn caprine chest_hair clothing dialogue english_text fangs fur goat hair happy_trail horns male male_only mammal moobs mostly_nude penis presenting presenting_penis pubes red_eyes slightly_chubby text thelionsinner underfell undertale undertale_au undertale_fanfiction underwear video_games white_fur yellow_sclera
2017 abs alternate_universe anso/rez anthro armpit_hair asgore_(underfell) asgore_au asgore_dreemurr asgorecest ass balls barazoku beard biceps black_hair blonde_hair blue_eyes body_hair bondage boss_monster bound bulge caprine chest_hair collar crying dark_hair duo erection facial_hair fan_character fangs flower fur furry garden gay gay_domination goat grin hair_grab hairy hairy_balls half-erect horn humanoid_penis kneeling leash long_ears male male_only maledom malesub mammal musclegut muscular muscular_male nude pecs penis penis_outline plant precum pubic_hair scar selfcest smile square_crossover stained_glass_window tears topless underfell undertale undertale_au undertale_fanfiction underwear vines white_fur window yaoi
2017 abs alternate_universe anso/rez anthro armpit_hair asgore_(underfell) asgore_au asgore_dreemurr asgorecest ass balls barazoku beard biceps black_hair blonde_hair blue_eyes body_hair bondage boss_monster bound bulge caprine chest_hair collar crying dark_hair duo erection facial_hair fan_character fangs flower fur furry garden gay gay_domination goat grin hair_grab hairy hairy_balls half-erect horn humanoid_penis kneeling leash long_ears male male_only maledom malesub mammal musclegut muscular muscular_male nude pecs penis penis_outline plant precum pubic_hair scar selfcest smile square_crossover stained_glass_window tears topless underfell undertale undertale_au undertale_fanfiction underwear vines white_fur window yaoi
alternate_universe anthro anthro_only asgore_(underfell) asgore_au asgore_dreemurr asgoriel caprine female goat horns japanese_text male male/female mammal monochrome monster red_eyes sex straight text toriel toriel_(underfell) toriel_au underfell undertale undertale_au undertale_fanfiction unknown_artist video_games yellow_sclera
alternate_universe anthro anthro_only asgore_(underfell) asgore_au asgore_dreemurr asgoriel caprine female goat horns japanese_text male male/female mammal monochrome monster red_eyes sex straight text toriel toriel_(underfell) toriel_au underfell undertale undertale_au undertale_fanfiction unknown_artist video_games yellow_sclera
2boys 2d alternate_universe anthro artist_name asgore_au asgore_dreemurr beard before_sex black_hair color colored crown duo duo_focus erect_penis erection facial_hair frottage furry gay hi_res horn horns humanoid_robot long_legs looking_at_penis looking_down looking_pleasured male male_only mettaton mettaton_ex penis penis_out precum robot robot_humanoid shiroiyagi simple_background size_difference testicles text underfell underfell_asgore undertale undertale_au video_games yaoi
2boys 2d alternate_universe anthro artist_name asgore_au asgore_dreemurr beard before_sex black_hair color colored crown duo duo_focus erect_penis erection facial_hair frottage furry gay hi_res horn horns humanoid_robot long_legs looking_at_penis looking_down looking_pleasured male male_only mettaton mettaton_ex penis penis_out precum robot robot_humanoid shiroiyagi simple_background size_difference testicles text underfell underfell_asgore undertale undertale_au video_games yaoi
alternate_universe anthro anthro_penetrating anthro_penetrating_humanoid artist_name asgore_(underfell) asgore_au asgore_dreemurr balls black_hair boss_monster clitoris crown cuntboy cuntboy/male dark_hair duo erect_penis erection holding holding_legs horn horns humanoid_penetrated humanoid_robot intersex legs legs_apart legs_held_open legs_spread mettaton mettaton_ex monster penetration penis pubic_hair pussy robot_humanoid rule_63 sex shiroiyagi size_difference sweat sweating tear tears uncensored underfell underfell_asgore undertale undertale_au vaginal vaginal_penetration vaginal_sex video_games
alternate_universe anthro anthro_penetrating anthro_penetrating_humanoid artist_name asgore_(underfell) asgore_au asgore_dreemurr balls black_hair boss_monster clitoris crown cuntboy cuntboy/male dark_hair duo erect_penis erection holding holding_legs horn horns humanoid_penetrated humanoid_robot intersex legs legs_apart legs_held_open legs_spread mettaton mettaton_ex monster penetration penis pubic_hair pussy robot_humanoid rule_63 sex shiroiyagi size_difference sweat sweating tear tears uncensored underfell underfell_asgore undertale undertale_au vaginal vaginal_penetration vaginal_sex video_games
2015 2boys 2d alternate_universe ambiguous_gender android artist_name asgore_(underfell) asgore_au asgore_dreemurr beard bedroom big_penis black_hair boots boss_monster caprine chest_hair clothing color colored crown dark_hair detailed_background duo erect_penis erection facial_hair femboy footwear fur girly high_heels horn horns humanoid humanoid_penis humanoid_robot looking_at_another machine male mammal mettaton mettaton_ex monster penis penis_out pillow poster precum retracted_foreskin robot robot_humanoid shiroiyagi shoes size_difference touching_penis uncut underfell underfell_asgore undertale undertale_au video_games white_body white_fur yaoi
2015 2boys 2d alternate_universe ambiguous_gender android artist_name asgore_(underfell) asgore_au asgore_dreemurr beard bedroom big_penis black_hair boots boss_monster caprine chest_hair clothing color colored crown dark_hair detailed_background duo erect_penis erection facial_hair femboy footwear fur girly high_heels horn horns humanoid humanoid_penis humanoid_robot looking_at_another machine male mammal mettaton mettaton_ex monster penis penis_out pillow poster precum retracted_foreskin robot robot_humanoid shiroiyagi shoes size_difference touching_penis uncut underfell underfell_asgore undertale undertale_au video_games white_body white_fur yaoi