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2020s 2023 2boys 2d 2d_(artwork) animated_skeleton artist_name blue_belly blue_blush blush bodily_fluids boner_blossom bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing digital_media_(artwork) drooling duo ectobelly ectopenis english_text fantasizing fontcest genitals hooded_jacket hoodie humanoid imagining implied_penetration implied_sex incest intraspecies jacket line_art lineart looking_at_genitalia looking_at_penis male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy orange_penis papyrus papyrus_(undertale) papysans penis pleasure_face precum precum_drip profanity sans sans_(undertale) seme_papyrus sibling_incest siblings skeleton sweat text thought_bubble top_papyrus twitter twitter_username uke_sans undead undertale undertale_(series) veiny_penis video_game_character video_games white_background yaoi

2020s 2023 2boys 2d 2d_(artwork)animated_skeleton artist_name blue_belly blue_blush blush bodily_fluids boner_blossom bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing digital_media_(artwork)drooling duo ectobelly ectopenis english_text fantasizing fontcest genitals hooded_jacket hoodie humanoid imagining implied_penetration implied_sex incest intraspecies jacket line_art lineart looking_at_genitalia looking_at_penis male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy orange_penis papyrus papyrus_(undertale)papysans penis pleasure_face precum precum_drip profanity sans sans_(undertale)seme_papyrus sibling_incest siblings skeleton sweat text thought_bubble top_papyrus twitter twitter_username uke_sans undead undertale undertale_(series)veiny_penis video_game_character video_games white_background yaoi

2020s 2023 2boys 2d 2d_(artwork) animated_skeleton artist_name blue_belly blue_blush blush bodily_fluids boner_blossom bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing digital_media_(artwork) drooling duo ectobelly ectopenis english_text fantasizing fontcest genitals hooded_jacket hoodie humanoid imagining implied_penetration implied_sex incest intraspecies jacket line_art lineart looking_at_genitalia looking_at_penis male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy orange_penis papyrus papyrus_(undertale) papysans penis pleasure_face precum precum_drip profanity sans sans_(undertale) seme_papyrus sibling_incest siblings skeleton sweat text thought_bubble top_papyrus twitter twitter_username uke_sans undead undertale undertale_(series) veiny_penis video_game_character video_games white_background yaoi

1:1 1:1_aspect_ratio 1boy 2010s 2015 2d 2d_(artwork) bodily_fluids digital_media_(artwork) english_text erect_penis flower flowey_the_flower fluids genitals green_penis impiccato looking_at_genitalia looking_at_own_penis looking_at_penis male male_only partially_colored penis plant plant_penis precum solo solo_male text throbbing throbbing_penis undertale undertale_(series) veiny_penis video_game_character video_games white_background

ambiguous_gender animal_genitalia animal_penis balls big_balls big_penis blue_balls blue_body blue_eyes blue_fur blush bodily_fluids brown_body brown_eyes brown_fur canine_genitalia canine_penis dagasi eeveelution erection fur gen_1_pokemon gen_4_pokemon gen_6_pokemon genital_fluids genitals glaceon glistening glistening_body green_eyes group hoopa japanese_text knot legendary_pokemon looking_at_genitalia looking_at_penis lopunny lucario male nintendo open_mouth penis pink_penis pokemon pokemon_(species) portal portal_penis portal_ring precum prostitution red_eyes sweat sylveon text thinking_with_portals translated vulpix white_body white_fur