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1girl 2023 absurd_res anal anal_penetration angry anthro anus ass beige_fur big_breasts black_eyes blush blush_lines bondage boots boots_only breasts canid canine canis ceroba_ketsukane comic dialogue english_text exposed_breasts female_focus fox hair_ribbon heeled_boots high_res kokobiel long_hair looking_at_viewer mammal milf mostly_nude motion_lines multicolored_body nipples orange_hair pink_nipples ponytail pubic_hair pussy ripping_clothing sharp_teeth sound_effects sucking_nipple sweat sweatdrop tail tail_grab tentacle tentacle_around_leg tentacle_around_tail tentacle_in_ass tentacle_rape tentacles_around_breasts text undertale_(series) undertale_yellow vine_bondage vine_tentacles vines
1girl 2023 absurd_res anal anal_penetration angry anthro anus ass beige_fur big_breasts black_eyes blush blush_lines bondage boots boots_only breasts canid canine canis ceroba_ketsukane comic dialogue english_text exposed_breasts female_focus fox hair_ribbon heeled_boots high_res kokobiel long_hair looking_at_viewer mammal milf mostly_nude motion_lines multicolored_body nipples orange_hair pink_nipples ponytail pubic_hair pussy ripping_clothing sharp_teeth sound_effects sucking_nipple sweat sweatdrop tail tail_grab tentacle tentacle_around_leg tentacle_around_tail tentacle_in_ass tentacle_rape tentacles_around_breasts text undertale_(series) undertale_yellow vine_bondage vine_tentacles vines
2boys 2d 2d_(artwork) animated_skeleton bottom_sans bound clothed digital_media_(artwork) duo flowans flower flowey_the_flower flowsans gay interspecies looking_at_another looking_at_each_other looking_at_partner male male/male male_only monochrome monster monster_boy mouth_gag plant plant_tentacle restrained sans sans_(undertale) seme_flowey simple_background skeleton submissive tentacle tentacle_on_male tentacles_on_male top_flowey uke_sans undead undertale undertale_(series) ut-2828282928 video_game_character video_games vine_tentacles vines white_background yaoi
2boys 2d 2d_(artwork) animated_skeleton bottom_sans bound clothed digital_media_(artwork) duo flowans flower flowey_the_flower flowsans gay interspecies looking_at_another looking_at_each_other looking_at_partner male male/male male_only monochrome monster monster_boy mouth_gag plant plant_tentacle restrained sans sans_(undertale) seme_flowey simple_background skeleton submissive tentacle tentacle_on_male tentacles_on_male top_flowey uke_sans undead undertale undertale_(series) ut-2828282928 video_game_character video_games vine_tentacles vines white_background yaoi
2boys 2d 2d_(artwork) animated_skeleton bottom_sans bound clothed convenient_censoring convenient_censorship digital_media_(artwork) duo flowans flower flowey_the_flower flowsans gay implied_penetration interspecies korean_text male male/male male_only monochrome monster monster_boy mouth_forced_open plant plant_tentacle restrained sans sans_(undertale) seme_flowey simple_background skeleton soul soul_sex submissive tentacle tentacle_on_male tentacle_rape tentacle_sex tentacles_around_legs tentacles_on_male text top_flowey uke_sans undead undertale undertale_(series) ut-2828282928 video_game_character video_games vine_tentacles vines white_background yaoi
2boys 2d 2d_(artwork) animated_skeleton bottom_sans bound clothed convenient_censoring convenient_censorship digital_media_(artwork) duo flowans flower flowey_the_flower flowsans gay implied_penetration interspecies korean_text male male/male male_only monochrome monster monster_boy mouth_forced_open plant plant_tentacle restrained sans sans_(undertale) seme_flowey simple_background skeleton soul soul_sex submissive tentacle tentacle_on_male tentacle_rape tentacle_sex tentacles_around_legs tentacles_on_male text top_flowey uke_sans undead undertale undertale_(series) ut-2828282928 video_game_character video_games vine_tentacles vines white_background yaoi
1boy 2010s 2017 dominant dominant_male english_text flower flowey_the_flower male male_only plant plant_tentacle seme_flowey sinfulsanspar sketch solo_male talking_to_viewer tentacle tentacles text top_flowey undertale undertale_(series) vine_tentacles vines white_background
1boy 2010s 2017 dominant dominant_male english_text flower flowey_the_flower male male_only plant plant_tentacle seme_flowey sinfulsanspar sketch solo_male talking_to_viewer tentacle tentacles text top_flowey undertale undertale_(series) vine_tentacles vines white_background
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton belly bottom_sans digital_media_(artwork) duo ectobelly ectobody eggs eggs_in_belly eggs_in_stomach flowans flower flowey_the_flower flowsans male male/male male_only monochrome nonconsensual oviposition plant sans sans_(undertale) seme_flowey sex_toy skeleton tentacle thesourceofmysins top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines yaoi
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton belly bottom_sans digital_media_(artwork) duo ectobelly ectobody eggs eggs_in_belly eggs_in_stomach flowans flower flowey_the_flower flowsans male male/male male_only monochrome nonconsensual oviposition plant sans sans_(undertale) seme_flowey sex_toy skeleton tentacle thesourceofmysins top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines yaoi
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton belly bottom_sans duo easter ectobelly ectobody eggs eggs_in_belly eggs_in_stomach flowans flower flowey_the_flower flowsans happy_easter male male/male male_only nonconsensual oviposition plant sans sans_(undertale) seme_flowey skeleton tentacle thesourceofmysins top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines yaoi
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton belly bottom_sans duo easter ectobelly ectobody eggs eggs_in_belly eggs_in_stomach flowans flower flowey_the_flower flowsans happy_easter male male/male male_only nonconsensual oviposition plant sans sans_(undertale) seme_flowey skeleton tentacle thesourceofmysins top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines yaoi
2boys animated_skeleton blue_blush blue_penis blush bottom_sans bound bound_arms duo ectopenis flowans flower flowey_the_flower flowsans jacket male male_only monster partially_colored penis plant precum sans sans_(undertale) seme_flowey skeleton sweat top_flowey uke_sans undead undertale undertale_(series) vine_bondage vine_tentacles vines white_background yaoi
2boys animated_skeleton blue_blush blue_penis blush bottom_sans bound bound_arms duo ectopenis flowans flower flowey_the_flower flowsans jacket male male_only monster partially_colored penis plant precum sans sans_(undertale) seme_flowey skeleton sweat top_flowey uke_sans undead undertale undertale_(series) vine_bondage vine_tentacles vines white_background yaoi
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton blue_penis bottom_sans bottomless bottomless_male cum cumshot digital_media_(artwork) drooling duo ectopenis ejaculation flowans flower flowey_the_flower gay genitals grin ladybumtickler male male/male male_only monster monster_boy penile penis plant sans sans_(undertale) seme_flowey skeleton smile sniggysmut tentacle tentacle_around_penis tentacle_on_male tentaclejob tentacles_around_ankles tentacles_around_arms tentacles_around_legs tentacles_on_male text top_flowey tumblr uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines white_background yaoi yellow_flower
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton blue_penis bottom_sans bottomless bottomless_male cum cumshot digital_media_(artwork) drooling duo ectopenis ejaculation flowans flower flowey_the_flower gay genitals grin ladybumtickler male male/male male_only monster monster_boy penile penis plant sans sans_(undertale) seme_flowey skeleton smile sniggysmut tentacle tentacle_around_penis tentacle_on_male tentaclejob tentacles_around_ankles tentacles_around_arms tentacles_around_legs tentacles_on_male text top_flowey tumblr uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines white_background yaoi yellow_flower
2boys 2d 2d_(artwork) 4_fingers animated_skeleton blue_blush blue_penis blush bone bottom_sans clothed dark_background digital_media_(artwork) duo ectopenis flowans flower flowey_the_flower flowsans genitals gradient_background interspecies male male/male male_only monster penis plant purple_background sans sans_(undertale) seme_flowey simple_background skeleton smile sweat tentacle tentacle_on_male tentaclejob tentacles_on_male testicle text tinybeasts tinynsfw top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines yaoi
2boys 2d 2d_(artwork) 4_fingers animated_skeleton blue_blush blue_penis blush bone bottom_sans clothed dark_background digital_media_(artwork) duo ectopenis flowans flower flowey_the_flower flowsans genitals gradient_background interspecies male male/male male_only monster penis plant purple_background sans sans_(undertale) seme_flowey simple_background skeleton smile sweat tentacle tentacle_on_male tentaclejob tentacles_on_male testicle text tinybeasts tinynsfw top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines yaoi
1:1 1:1_aspect_ratio 2015 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton blue_blush blue_penis blush bodily_fluids bottom_sans bound bound_arms clothed clothing digital_media_(artwork) drooling duo ectopenis flowans flower flowey_the_flower flowsans fluids genitals goopynoms grey_background interspecies jacket male male/male male_only malesub monochrome monster monster_boy off_shoulder pants_down pants_pulled_down penis plant plant_tentacle sans sans_(undertale) seme_flowey sex simple_background skeleton submissive submissive_male tentacle tentacle_around_penis tentacle_on_male tentacles_on_male top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines yaoi yellow_flower
1:1 1:1_aspect_ratio 2015 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton blue_blush blue_penis blush bodily_fluids bottom_sans bound bound_arms clothed clothing digital_media_(artwork) drooling duo ectopenis flowans flower flowey_the_flower flowsans fluids genitals goopynoms grey_background interspecies jacket male male/male male_only malesub monochrome monster monster_boy off_shoulder pants_down pants_pulled_down penis plant plant_tentacle sans sans_(undertale) seme_flowey sex simple_background skeleton submissive submissive_male tentacle tentacle_around_penis tentacle_on_male tentacles_on_male top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines yaoi yellow_flower
1:1 1:1_aspect_ratio 2015 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton blue_blush blush bodily_fluids bottom_sans bound bound_arms clothed clothing digital_media_(artwork) drooling duo flowans flower flowey_the_flower flowsans fluids goopynoms grey_background interspecies jacket male male/male male_only malesub monochrome monster monster_boy off_shoulder pants_down pants_pulled_down plant plant_tentacle sans sans_(undertale) seme_flowey sex simple_background skeleton submissive submissive_male tentacle tentacle_on_male tentacles_on_male top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines yaoi yellow_flower
1:1 1:1_aspect_ratio 2015 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton blue_blush blush bodily_fluids bottom_sans bound bound_arms clothed clothing digital_media_(artwork) drooling duo flowans flower flowey_the_flower flowsans fluids goopynoms grey_background interspecies jacket male male/male male_only malesub monochrome monster monster_boy off_shoulder pants_down pants_pulled_down plant plant_tentacle sans sans_(undertale) seme_flowey sex simple_background skeleton submissive submissive_male tentacle tentacle_on_male tentacles_on_male top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines yaoi yellow_flower
1girl 1human 2d 2d_(artwork) aged_up artist_logo boots bottomwear breasts brown_boots brown_hair brown_pants brown_shoes brown_shorts character_name clothed clothed_female clothed_human clothing digital_media_(artwork) female_focus female_frisk female_human flower flowey_the_flower frisk frisk_(undertale) home-cooking homecookinglove human long_sleeves midriff nipples nude nude_female nude_human off_shoulder pants plant plant_tentacle pussy shoes shorts sitting striped_shirt tentacle tentacle_on_female text topwear undertale undertale_(series) video_game_character video_games vine_tentacles vines yellow_flower
1girl 1human 2d 2d_(artwork) aged_up artist_logo boots bottomwear breasts brown_boots brown_hair brown_pants brown_shoes brown_shorts character_name clothed clothed_female clothed_human clothing digital_media_(artwork) female_focus female_frisk female_human flower flowey_the_flower frisk frisk_(undertale) home-cooking homecookinglove human long_sleeves midriff nipples nude nude_female nude_human off_shoulder pants plant plant_tentacle pussy shoes shorts sitting striped_shirt tentacle tentacle_on_female text topwear undertale undertale_(series) video_game_character video_games vine_tentacles vines yellow_flower
1boy 1girl 1human 2010s 2016 2d 2d_(artwork) aged_up artist_name breasts completely_nude completely_nude_female cum cum_inside english_text female female_frisk female_human female_penetrated femsub flower flowey_the_flower flowisk frisk frisk_(undertale) human human_penetrated ladybumtickler nipples nude nude_female nude_male plant plant_tentacle plany sniggysmut solo_human submissive submissive_female talking_to_another talking_to_partner tentacle tentacle_on_female tentacles_around_arms tentacles_around_legs text tumblr undertale undertale_(series) vaginal vaginal_penetration video_game_character video_games vine_tentacles vines white_background yellow_flower
1boy 1girl 1human 2010s 2016 2d 2d_(artwork) aged_up artist_name breasts completely_nude completely_nude_female cum cum_inside english_text female female_frisk female_human female_penetrated femsub flower flowey_the_flower flowisk frisk frisk_(undertale) human human_penetrated ladybumtickler nipples nude nude_female nude_male plant plant_tentacle plany sniggysmut solo_human submissive submissive_female talking_to_another talking_to_partner tentacle tentacle_on_female tentacles_around_arms tentacles_around_legs text tumblr undertale undertale_(series) vaginal vaginal_penetration video_game_character video_games vine_tentacles vines white_background yellow_flower
2boys 2d 2d_(artwork) animated_skeleton artist_request blue_blush blue_hoodie blue_jacket blue_penis blue_tongue blush bottom_sans bound clothed clothing cum cumshot digital_media_(artwork) drooling duo ectopenis ejaculation flowans flower flowey_the_flower flowsans genitals grey_background hooded_jacket hoodie jacket male male/male male_only monster monster_boy orgasm penis plant plant_tentacle sans sans_(undertale) seme_flowey sex simple_background skeleton submissive tentacle tentacle_on_male tentaclejob tongue top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines wink yaoi yellow_flower
2boys 2d 2d_(artwork) animated_skeleton artist_request blue_blush blue_hoodie blue_jacket blue_penis blue_tongue blush bottom_sans bound clothed clothing cum cumshot digital_media_(artwork) drooling duo ectopenis ejaculation flowans flower flowey_the_flower flowsans genitals grey_background hooded_jacket hoodie jacket male male/male male_only monster monster_boy orgasm penis plant plant_tentacle sans sans_(undertale) seme_flowey sex simple_background skeleton submissive tentacle tentacle_on_male tentaclejob tongue top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines wink yaoi yellow_flower
2010s 2015 2boys 2d 2d_(artwork) animated_skeleton artist_signature black_background blue_blush blue_eye blue_jacket blue_penis blush bodily_fluids bottom_sans bound clothed clothing dark_background digital_media_(artwork) drooling duo ectopenis elatedsceptre flowans flower flowey_the_flower flowsans genital_fluids genitals glowing glowing_penis hooded_jacket interspecies jacket long_tongue looking_down male male/male male_only monster monster_boy penis plant plant_tentacle red_eyes sans sans_(undertale) seme_flowey sex simple_background skeleton submissive tentacle tentacle_on_male thorns tongue_out top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines yaoi yellow_flower
2010s 2015 2boys 2d 2d_(artwork) animated_skeleton artist_signature black_background blue_blush blue_eye blue_jacket blue_penis blush bodily_fluids bottom_sans bound clothed clothing dark_background digital_media_(artwork) drooling duo ectopenis elatedsceptre flowans flower flowey_the_flower flowsans genital_fluids genitals glowing glowing_penis hooded_jacket interspecies jacket long_tongue looking_down male male/male male_only monster monster_boy penis plant plant_tentacle red_eyes sans sans_(undertale) seme_flowey sex simple_background skeleton submissive tentacle tentacle_on_male thorns tongue_out top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines yaoi yellow_flower
1:1 1:1_aspect_ratio 2015 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton blue_blush blue_penis blush bodily_fluids bottom_sans bound bound_arms clothed clothing digital_media_(artwork) drooling duo duplicate ectopenis flowans flower flowey_the_flower flowsans fluids goopynoms grey_background interspecies jacket male male/male male_only malesub monochrome monster monster_boy off_shoulder pants_down pants_pulled_down penis plant plant_tentacle sans sans_(undertale) seme_flowey sex simple_background skeleton submissive submissive_male tentacle tentacle_on_male tentacles_on_male top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines yaoi yellow_flower
1:1 1:1_aspect_ratio 2015 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton blue_blush blue_penis blush bodily_fluids bottom_sans bound bound_arms clothed clothing digital_media_(artwork) drooling duo duplicate ectopenis flowans flower flowey_the_flower flowsans fluids goopynoms grey_background interspecies jacket male male/male male_only malesub monochrome monster monster_boy off_shoulder pants_down pants_pulled_down penis plant plant_tentacle sans sans_(undertale) seme_flowey sex simple_background skeleton submissive submissive_male tentacle tentacle_on_male tentacles_on_male top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines yaoi yellow_flower
2boys 2d 2d_(artwork) against_wall animated_skeleton blue_blush blue_penis blush bottom_sans clothed clothing digital_media_(artwork) duo ectopenis flowans flower flowey_the_flower flowsans grey_background imminent_sex interspecies male male/male male_only monster monster_boy penis plant plant_penis plant_tentacle sans sans_(undertale) seme_flowey sex simple_background skeleton submissive sweat tentacle tentacle_around_penis tentacle_on_male tentaclejob top_flowey uke_sans undead undertale undertale_(series) unknown_artist video_game_character video_games vine_tentacles vinejob vines yaoi yellow_flower
2boys 2d 2d_(artwork) against_wall animated_skeleton blue_blush blue_penis blush bottom_sans clothed clothing digital_media_(artwork) duo ectopenis flowans flower flowey_the_flower flowsans grey_background imminent_sex interspecies male male/male male_only monster monster_boy penis plant plant_penis plant_tentacle sans sans_(undertale) seme_flowey sex simple_background skeleton submissive sweat tentacle tentacle_around_penis tentacle_on_male tentaclejob top_flowey uke_sans undead undertale undertale_(series) unknown_artist video_game_character video_games vine_tentacles vinejob vines yaoi yellow_flower
2020s 2022 2boys 2d 2d_(artwork) absurd_res absurdres anal anal_sex anal_through_clothes animated_skeleton autofootjob big_penis blue_blush blue_hoodie blue_jacket blue_penis blush bodily_fluids bone bottom_sans bound clothed clothed_rape clothing cum cum_in_ass cum_inside cum_on_face cum_on_own_face cum_on_self digital_media_(artwork) duo ectopenis ejaculation flowans flower flowey_the_flower foot_fetish foot_play footjob footwear forced fully_clothed genital_fluids genitals hi_res hooded_jacket hoodie humanoid looking_at_genitalia looking_at_own_penis looking_at_penis looking_down looking_down_at_self male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy penetration penis plant plant_tentacle rape sans sans_(undertale) self_footjob seme_flowey sex sex_through_clothes simple_background skeleton socks submissive tentacle tentacle_on_male tentacle_penetration tentacle_rape testicles top_flowey topwear uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines white_background yaoi yellow_flower
2020s 2022 2boys 2d 2d_(artwork) absurd_res absurdres anal anal_sex anal_through_clothes animated_skeleton autofootjob big_penis blue_blush blue_hoodie blue_jacket blue_penis blush bodily_fluids bone bottom_sans bound clothed clothed_rape clothing cum cum_in_ass cum_inside cum_on_face cum_on_own_face cum_on_self digital_media_(artwork) duo ectopenis ejaculation flowans flower flowey_the_flower foot_fetish foot_play footjob footwear forced fully_clothed genital_fluids genitals hi_res hooded_jacket hoodie humanoid looking_at_genitalia looking_at_own_penis looking_at_penis looking_down looking_down_at_self male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy penetration penis plant plant_tentacle rape sans sans_(undertale) self_footjob seme_flowey sex sex_through_clothes simple_background skeleton socks submissive tentacle tentacle_on_male tentacle_penetration tentacle_rape testicles top_flowey topwear uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines white_background yaoi yellow_flower
2boys 2d 2d_(artwork) animated_skeleton artist_name blue_blush blue_penis blush bottom_sans choquiton completely_naked completely_nude completely_nude_male digital_media_(artwork) duo ectopenis flowans flower flowey_the_flower flowsans genitals glowing glowing_genitalia glowing_penis looking_at_genitalia looking_at_penis male male/male male_only malesub monochrome monster monster_boy nude nude_male partially_colored penis plant plant_tentacle rape sans sans_(undertale) seme_flowey sex simple_background skeleton submissive submissive_male tentacle tentacle_around_penis tentacle_on_male tentaclejob tentacles top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines yaoi
2boys 2d 2d_(artwork) animated_skeleton artist_name blue_blush blue_penis blush bottom_sans choquiton completely_naked completely_nude completely_nude_male digital_media_(artwork) duo ectopenis flowans flower flowey_the_flower flowsans genitals glowing glowing_genitalia glowing_penis looking_at_genitalia looking_at_penis male male/male male_only malesub monochrome monster monster_boy nude nude_male partially_colored penis plant plant_tentacle rape sans sans_(undertale) seme_flowey sex simple_background skeleton submissive submissive_male tentacle tentacle_around_penis tentacle_on_male tentaclejob tentacles top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vinejob vines yaoi
2020s 2022 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton basho_lizard blue_tongue bodily_fluids bottom_sans clothed crying digital_media_(artwork) duo ectotongue flowans flower flowey_the_flower flowsans fluids interspecies male male/male male_only monster monster_boy pixiv_id_7835302 plant plant_tentacle sans sans_(undertale) seme_flowey sequence sequential skeleton soul_sex submissive sweat tears tentacle tentacle_on_male tentacles_under_clothes tongue tongue_out top_flowey trembling twitching uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines white_background yaoi yellow_flower
2020s 2022 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton basho_lizard blue_tongue bodily_fluids bottom_sans clothed crying digital_media_(artwork) duo ectotongue flowans flower flowey_the_flower flowsans fluids interspecies male male/male male_only monster monster_boy pixiv_id_7835302 plant plant_tentacle sans sans_(undertale) seme_flowey sequence sequential skeleton soul_sex submissive sweat tears tentacle tentacle_on_male tentacles_under_clothes tongue tongue_out top_flowey trembling twitching uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines white_background yaoi yellow_flower
2020s 2022 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton basho_lizard bottom_sans clothed digital_media_(artwork) duo flowans flower flowey_the_flower flowsans interspecies male male/male male_only monster monster_boy pixiv_id_7835302 plant plant_tentacle sans sans_(undertale) seme_flowey sequence sequential skeleton soul_sex submissive sweat tentacle tentacle_on_male tentacles_under_clothes top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines white_background yaoi yellow_flower
2020s 2022 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton basho_lizard bottom_sans clothed digital_media_(artwork) duo flowans flower flowey_the_flower flowsans interspecies male male/male male_only monster monster_boy pixiv_id_7835302 plant plant_tentacle sans sans_(undertale) seme_flowey sequence sequential skeleton soul_sex submissive sweat tentacle tentacle_on_male tentacles_under_clothes top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines white_background yaoi yellow_flower
2020s 2022 2boys 2d 2d_(artwork) animated_skeleton blood blue_blush blush bottom_sans claws clothed crying digital_media_(artwork) domination drooling duo flowans flower flowey_the_flower flowsans hoodie injury interspecies japanese_text logo_(pixiv_id_30462562) male monster monster_boy one_eye_closed penetration pinned_down plant plant_tentacle plant_tentacles rape sans sans_(undertale) seme_flowey sex skeleton solo_focus submissive sweat tears tentacle tentacle_in_mouth tentacle_rape tentacle_sex tentacles_around_legs text top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines white_background yaoi
2020s 2022 2boys 2d 2d_(artwork) animated_skeleton blood blue_blush blush bottom_sans claws clothed crying digital_media_(artwork) domination drooling duo flowans flower flowey_the_flower flowsans hoodie injury interspecies japanese_text logo_(pixiv_id_30462562) male monster monster_boy one_eye_closed penetration pinned_down plant plant_tentacle plant_tentacles rape sans sans_(undertale) seme_flowey sex skeleton solo_focus submissive sweat tears tentacle tentacle_in_mouth tentacle_rape tentacle_sex tentacles_around_legs text top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines white_background yaoi
2020s 2022 2boys 2d 2d_(artwork) animated_skeleton black_background black_censor_bar blue_blush blush bottom_sans censor_bar clothed creepy_eyes creepy_face creepy_smile digital_media_(artwork) duo ectoplasm flowans flower flowey_the_flower flowsans hoodie interspecies japanese_text logo_(pixiv_id_30462562) monster monster_boy one_eye_closed penetration plant plant_penis plant_tentacle plant_tentacles potion rape sans sans_(undertale) seme_flowey sex simple_background skeleton solid_color_background submissive sweat talking_to_another talking_to_partner tentacle tentacle_in_mouth tentacle_rape tentacle_sex tentacles_around_legs text top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines yaoi
2020s 2022 2boys 2d 2d_(artwork) animated_skeleton black_background black_censor_bar blue_blush blush bottom_sans censor_bar clothed creepy_eyes creepy_face creepy_smile digital_media_(artwork) duo ectoplasm flowans flower flowey_the_flower flowsans hoodie interspecies japanese_text logo_(pixiv_id_30462562) monster monster_boy one_eye_closed penetration plant plant_penis plant_tentacle plant_tentacles potion rape sans sans_(undertale) seme_flowey sex simple_background skeleton solid_color_background submissive sweat talking_to_another talking_to_partner tentacle tentacle_in_mouth tentacle_rape tentacle_sex tentacles_around_legs text top_flowey uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines yaoi
1:1 1:1_aspect_ratio 2010s 2boys 2d 2d_(artwork) animated_skeleton blue_blush blush bone bottom_sans bottomless digital_media_(artwork) duo eli-sin-g english_text flowans flower flowey_the_flower flowsans humanoid kolesjoie legs_apart legs_spread looking_at_another looking_at_each_other male male/male male_only monster monster_boy mouth_forced_open plant plant_tentacle plant_tentacles sans sans_(undertale) seme_flowey simple_background skeleton spread_legs tentacle tentacle_around_leg tentacle_in_mouth tentacle_under_clothes tentacles_around_arms tentacles_around_wrists tentacles_in_mouth tentacles_under_clothes text top_flowey tumblr uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines white_background yaoi
1:1 1:1_aspect_ratio 2010s 2boys 2d 2d_(artwork) animated_skeleton blue_blush blush bone bottom_sans bottomless digital_media_(artwork) duo eli-sin-g english_text flowans flower flowey_the_flower flowsans humanoid kolesjoie legs_apart legs_spread looking_at_another looking_at_each_other male male/male male_only monster monster_boy mouth_forced_open plant plant_tentacle plant_tentacles sans sans_(undertale) seme_flowey simple_background skeleton spread_legs tentacle tentacle_around_leg tentacle_in_mouth tentacle_under_clothes tentacles_around_arms tentacles_around_wrists tentacles_in_mouth tentacles_under_clothes text top_flowey tumblr uke_sans undead undertale undertale_(series) video_game_character video_games vine_tentacles vines white_background yaoi
1boy 1girl anthro anthro_penetrated breasts dialog dialogue english_text female female_anthro female_penetrated femsub flower flowey_the_flower furry goat inverted_nipples kneeling lactation mature_female milf nipples nude plant plant_tentacle plant_tentacles pussy seme_flowey sex submissive submissive_female tentacle tentacle_on_female tentacle_sex tentacles tentacles_around_breasts tentacles_around_legs text text_box top_flowey toriel undertale undertale_(series) vaginal_penetration vine_tentacles vines white_fur yellow_flower yurichan
1boy 1girl anthro anthro_penetrated breasts dialog dialogue english_text female female_anthro female_penetrated femsub flower flowey_the_flower furry goat inverted_nipples kneeling lactation mature_female milf nipples nude plant plant_tentacle plant_tentacles pussy seme_flowey sex submissive submissive_female tentacle tentacle_on_female tentacle_sex tentacles tentacles_around_breasts tentacles_around_legs text text_box top_flowey toriel undertale undertale_(series) vaginal_penetration vine_tentacles vines white_fur yellow_flower yurichan
1boy 1girl 1human artist_name black_background breasts brown_hair chubby chubby_female completely_nude_female crying female_frisk female_human femsub flower flowey_the_flower flowisk frisk frisk_(undertale) hair human mukitsune nipples nude nude_female one_eye_closed one_eye_open plant plant_tentacle plant_tentacles purple_eyes purplekitsune21 seme_flowey short_hair smirk solo_human submissive submissive_female tentacle tentacle_on_female tentacles top_flowey undertale undertale_(series) vine_tentacles vines yellow_flower
1boy 1girl 1human artist_name black_background breasts brown_hair chubby chubby_female completely_nude_female crying female_frisk female_human femsub flower flowey_the_flower flowisk frisk frisk_(undertale) hair human mukitsune nipples nude nude_female one_eye_closed one_eye_open plant plant_tentacle plant_tentacles purple_eyes purplekitsune21 seme_flowey short_hair smirk solo_human submissive submissive_female tentacle tentacle_on_female tentacles top_flowey undertale undertale_(series) vine_tentacles vines yellow_flower
1girl 2016 anthro areola armpits big_breasts blush boss_monster breastfeeding breasts caprine duo erect_nipples female female_anthro femsub flower flowey_the_flower furry goat huge_breasts lactating lactation malamol male mammal mature_female milk nipples nude plant plant_tentacle plant_tentacles seme_flowey submissive submissive_female tentacle tentacle_on_female tentacles tentacles_around_arms top_flowey toriel undertale undertale_(series) vein veiny_breasts video_games vine_tentacles vines yellow_flower
1girl 2016 anthro areola armpits big_breasts blush boss_monster breastfeeding breasts caprine duo erect_nipples female female_anthro femsub flower flowey_the_flower furry goat huge_breasts lactating lactation malamol male mammal mature_female milk nipples nude plant plant_tentacle plant_tentacles seme_flowey submissive submissive_female tentacle tentacle_on_female tentacles tentacles_around_arms top_flowey toriel undertale undertale_(series) vein veiny_breasts video_games vine_tentacles vines yellow_flower