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1boy 1cuntboy 2d 2d_(artwork) 3_girls almost_caught alphys animated_skeleton anthro apron big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_pussy blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clitoris clothed comic comic_page comic_panel cuntboy cuntboy_penetrated digital_media_(artwork) dinosaur dinosaur_girl duo duo_focus ectopenis ectopussy edit edited eli-sin-g english_text female_anthro fontcest frisk frisk_(undertale) from_behind_position from_front_position genitals grabbing_arms grabbing_from_behind grabbing_leg human humanoid incest intraspecies kitchen kolesjoie larger_male larger_penetrating leg_grab lizard lizard_girl long_image male male/cuntboy male_focus male_penetrating male_penetrating_cuntboy monochrome monster monster_boy monster_girl on_counter onomatopoeia orange_blush orange_penis papyrus papyrus_(undertale) papysans penetration penetration_from_behind penis pussy reptile reptile_girl sans sans_(undertale) scalie scalie_female seme_papyrus sequence sequential sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spot_color stealth_sex talking tall_image text text_bubble third-party_edit top_papyrus toriel uke_sans undead undertale undertale_(series) undyne vaginal video_game_character video_games yaoi
1boy 1cuntboy 2d 2d_(artwork) 3_girls almost_caught alphys animated_skeleton anthro apron big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_pussy blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clitoris clothed comic comic_page comic_panel cuntboy cuntboy_penetrated digital_media_(artwork) dinosaur dinosaur_girl duo duo_focus ectopenis ectopussy edit edited eli-sin-g english_text female_anthro fontcest frisk frisk_(undertale) from_behind_position from_front_position genitals grabbing_arms grabbing_from_behind grabbing_leg human humanoid incest intraspecies kitchen kolesjoie larger_male larger_penetrating leg_grab lizard lizard_girl long_image male male/cuntboy male_focus male_penetrating male_penetrating_cuntboy monochrome monster monster_boy monster_girl on_counter onomatopoeia orange_blush orange_penis papyrus papyrus_(undertale) papysans penetration penetration_from_behind penis pussy reptile reptile_girl sans sans_(undertale) scalie scalie_female seme_papyrus sequence sequential sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spot_color stealth_sex talking tall_image text text_bubble third-party_edit top_papyrus toriel uke_sans undead undertale undertale_(series) undyne vaginal video_game_character video_games yaoi
2boys 2d anal anal_sex animated_skeleton barista big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller black_sclera blue_blush blush bottom_sans bottomless closed_eyes digital_media_(artwork) duo ectopenis ectoplasm elemental_creature elemental_humanoid erect_while_penetrated erection fire_elemental from_behind_position glasses grillby grillsans handjob handjob_while_penetrating humanoid kissing larger_dom larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrating monochrome monster monster_boy penetration penis pink_theme sans sans_(undertale) sansby seme_grillby shandrawaka simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom t-shirt tears top_grillby trembling uke_sans undead undertale undertale_(series) white_background yaoi
2boys 2d anal anal_sex animated_skeleton barista big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller black_sclera blue_blush blush bottom_sans bottomless closed_eyes digital_media_(artwork) duo ectopenis ectoplasm elemental_creature elemental_humanoid erect_while_penetrated erection fire_elemental from_behind_position glasses grillby grillsans handjob handjob_while_penetrating humanoid kissing larger_dom larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrating monochrome monster monster_boy penetration penis pink_theme sans sans_(undertale) sansby seme_grillby shandrawaka simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom t-shirt tears top_grillby trembling uke_sans undead undertale undertale_(series) white_background yaoi
2boys 2d against_wall anal anal_penetration anal_sex animated_skeleton barista big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller black_sclera blue_blush blue_hoodie blue_jacket blue_penis blush bottom_sans digital_media_(artwork) duo ectopenis ectoplasm elemental_creature elemental_humanoid erect_while_penetrated erection fire_elemental from_behind glasses grillby hooded_jacket hoodie humanoid jacket larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrating monster monster_boy orange_body pants_down penetration penis red_eyes sans sans_(undertale) seme_grillby shandrawaka skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom tears top_grillby uke_sans undead undertale undertale_(series) yaoi
2boys 2d against_wall anal anal_penetration anal_sex animated_skeleton barista big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller black_sclera blue_blush blue_hoodie blue_jacket blue_penis blush bottom_sans digital_media_(artwork) duo ectopenis ectoplasm elemental_creature elemental_humanoid erect_while_penetrated erection fire_elemental from_behind glasses grillby hooded_jacket hoodie humanoid jacket larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrating monster monster_boy orange_body pants_down penetration penis red_eyes sans sans_(undertale) seme_grillby shandrawaka skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom tears top_grillby uke_sans undead undertale undertale_(series) yaoi
2020s 2023 2boys anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket blush boots bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers duo ectopenis ectoplasm fontcest gloves hooded_jacket hoodie humanoid incest intraspecies jacket larger_male larger_penetrating male male/male male_only male_penetrating monster monster_boy papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis red_boots red_gloves red_penis s2ames2 sans sans_(undertale) seme_papyrus sex sibling_incest siblings sink size_difference skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks standing sweat top_papyrus uke_sans undead undertale undertale_(series) white_background yaoi
2020s 2023 2boys anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket blush boots bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers duo ectopenis ectoplasm fontcest gloves hooded_jacket hoodie humanoid incest intraspecies jacket larger_male larger_penetrating male male/male male_only male_penetrating monster monster_boy papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis red_boots red_gloves red_penis s2ames2 sans sans_(undertale) seme_papyrus sex sibling_incest siblings sink size_difference skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks standing sweat top_papyrus uke_sans undead undertale undertale_(series) white_background yaoi
2020s 2023 2boys against_tree anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers duo ectopenis ectoplasm fontcest gloves grabbing_arm grabbing_from_behind hooded_jacket hoodie humanoid incest intraspecies jacket larger_male larger_penetrating male male/male male_only male_penetrating monster monster_boy motion_lines outdoors papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis public public_sex red_gloves s2ames2 sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom standing sweat thrusting top_papyrus tree uke_sans undead undertale undertale_(series) white_glove white_gloves yaoi
2020s 2023 2boys against_tree anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers duo ectopenis ectoplasm fontcest gloves grabbing_arm grabbing_from_behind hooded_jacket hoodie humanoid incest intraspecies jacket larger_male larger_penetrating male male/male male_only male_penetrating monster monster_boy motion_lines outdoors papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis public public_sex red_gloves s2ames2 sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom standing sweat thrusting top_papyrus tree uke_sans undead undertale undertale_(series) white_glove white_gloves yaoi
2020s 2023 2boys animated_skeleton bedroom big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_hoodie blue_jacket boots bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brothers duo ectopenis ectoplasm fellatio fellatio_pov fontcest hooded_jacket hoodie humanoid incest indoors intraspecies jacket japanese_text larger_male licking licking_balls licking_penis licking_testicles male male/male male_focus male_only male_penetrating male_pov monster monster_boy papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penis pov red_boots red_penis s2ames2 sans sans_(undertale) seme_papyrus sex sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom solo_focus text top_papyrus trembling trembling_legs uke_sans undead undertale undertale_(series) unseen_male_face yaoi
2020s 2023 2boys animated_skeleton bedroom big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_hoodie blue_jacket boots bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brothers duo ectopenis ectoplasm fellatio fellatio_pov fontcest hooded_jacket hoodie humanoid incest indoors intraspecies jacket japanese_text larger_male licking licking_balls licking_penis licking_testicles male male/male male_focus male_only male_penetrating male_pov monster monster_boy papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penis pov red_boots red_penis s2ames2 sans sans_(undertale) seme_papyrus sex sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom solo_focus text top_papyrus trembling trembling_legs uke_sans undead undertale undertale_(series) unseen_male_face yaoi
2020s 2023 2boys animated_skeleton arm_support big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket boots bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers couch couch_sex duo ectopenis ectoplasm ectopussy fontcest from_front_position furniture gloves green_couch hooded_jacket hoodie humanoid incest indoors intraspecies jacket japanese_text larger_male larger_penetrating legs_up male male/male male_only male_penetrating missionary_position monster monster_boy on_couch on_sofa papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penetration_from_front penis pussy red_boots red_gloves red_penis s2ames2 sans sans_(undertale) seme_papyrus sex sex_from_front sex_on_couch sex_on_sofa sibling_incest siblings skeleton slippers small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks sofa spread_legs text top_papyrus uke_sans undead undertale undertale_(series) unseen_male_face white_gloves white_socks yaoi
2020s 2023 2boys animated_skeleton arm_support big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket boots bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers couch couch_sex duo ectopenis ectoplasm ectopussy fontcest from_front_position furniture gloves green_couch hooded_jacket hoodie humanoid incest indoors intraspecies jacket japanese_text larger_male larger_penetrating legs_up male male/male male_only male_penetrating missionary_position monster monster_boy on_couch on_sofa papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penetration_from_front penis pussy red_boots red_gloves red_penis s2ames2 sans sans_(undertale) seme_papyrus sex sex_from_front sex_on_couch sex_on_sofa sibling_incest siblings skeleton slippers small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks sofa spread_legs text top_papyrus uke_sans undead undertale undertale_(series) unseen_male_face white_gloves white_socks yaoi
2020s 2022 2boys anal animated_skeleton big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_hoodie blue_jacket blue_penis blush boots bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers duo ectopenis ectoplasm fontcest footwear gloves hooded_jacket hoodie humanoid incest intraspecies jacket larger_male larger_penetrating laying_on_side lying_on_side male male/male male_only male_penetrating monster monster_boy motion_lines on_side papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis penis_size_difference red_boots red_gloves red_penis s2ames2 sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings simple_background size_difference skeleton small_penis small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks thrusting top_papyrus trembling uke_sans undead undertale undertale_(series) white_background white_socks yaoi
2020s 2022 2boys anal animated_skeleton big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_hoodie blue_jacket blue_penis blush boots bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers duo ectopenis ectoplasm fontcest footwear gloves hooded_jacket hoodie humanoid incest intraspecies jacket larger_male larger_penetrating laying_on_side lying_on_side male male/male male_only male_penetrating monster monster_boy motion_lines on_side papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis penis_size_difference red_boots red_gloves red_penis s2ames2 sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings simple_background size_difference skeleton small_penis small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks thrusting top_papyrus trembling uke_sans undead undertale undertale_(series) white_background white_socks yaoi
2020s 2022 2boys 2d 2d_(artwork) anal animated_skeleton artist_name beetleevil big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blush blushing_male bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers closed_eyes clothed clothed/nude clothed_male clothed_male_nude_male clothing completely_nude completely_nude_male crying crying_with_eyes_closed digital_media_(artwork) dominant dominant_male duo ectopenis ectoplasm english_text evilbeetle fontcest genitals gloves grabbing_wrist humanoid incest intraspecies larger_penetrating larger_penetrating_smaller male male/male male_only maledom malesub monster monster_boy non-consensual nonconsensual nude nude_male orange_blush orange_penis papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penetration_from_behind penis rape red_gloves red_scarf sans sans_(undertale) scarf seme_papyrus sex sex_from_behind sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub_bigger_dom solid_color_background speech_bubble standing standing_sex submissive submissive_male tears text text_bubble thrusting top_papyrus trembling trembling_legs twitter uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2020s 2022 2boys 2d 2d_(artwork) anal animated_skeleton artist_name beetleevil big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blush blushing_male bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers closed_eyes clothed clothed/nude clothed_male clothed_male_nude_male clothing completely_nude completely_nude_male crying crying_with_eyes_closed digital_media_(artwork) dominant dominant_male duo ectopenis ectoplasm english_text evilbeetle fontcest genitals gloves grabbing_wrist humanoid incest intraspecies larger_penetrating larger_penetrating_smaller male male/male male_only maledom malesub monster monster_boy non-consensual nonconsensual nude nude_male orange_blush orange_penis papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penetration_from_behind penis rape red_gloves red_scarf sans sans_(undertale) scarf seme_papyrus sex sex_from_behind sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub_bigger_dom solid_color_background speech_bubble standing standing_sex submissive submissive_male tears text text_bubble thrusting top_papyrus trembling trembling_legs twitter uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2022 2boys 2d animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_hoodie blue_jacket bonerut boots bottom_sans brother/brother brothers clothed clothing digital_media duo erection erection_under_clothes fontcest gloves hooded_jacket hoodie incest intraspecies jacket larger_male male male_only male_penetrating monster monster_boy multiple_views pants papyrus_(undertale) papysans pink_footwear pink_gloves red_footwear red_gloves sans_(undertale) sibling_incest siblings skeleton slippers small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom top_papyrus undead undertale undertale_(series) yaoi
2022 2boys 2d animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_hoodie blue_jacket bonerut boots bottom_sans brother/brother brothers clothed clothing digital_media duo erection erection_under_clothes fontcest gloves hooded_jacket hoodie incest intraspecies jacket larger_male male male_only male_penetrating monster monster_boy multiple_views pants papyrus_(undertale) papysans pink_footwear pink_gloves red_footwear red_gloves sans_(undertale) sibling_incest siblings skeleton slippers small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom top_papyrus undead undertale undertale_(series) yaoi
1:1 1:1_aspect_ratio 2021 2boys 2d 2d_animation abosinsin anal animated animated_skeleton animation bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller bottom_sans brother/brother brother_penetrating_brother brothers carrying carrying_another carrying_partner carrying_position clothed cropped digital_media duo ectopenis edit edited fontcest inactive_account incest intraspecies larger_male larger_penetrating larger_penetrating_smaller legwear looping_animation lowres male male/male male_only male_penetrated male_penetrating male_penetrating_male maledom monster monster_boy mp4 no_sound orange_penis papyrus_(undertale) papysans penetration penis sans_(undertale) sex short_playtime shorter_than_10_seconds sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks stand_and_carry_position third-party_edit thrusting top_papyrus undead undertale undertale_(series) video video_game_character video_games webm white_background yaoi
1:1 1:1_aspect_ratio 2021 2boys 2d 2d_animation abosinsin anal animated animated_skeleton animation bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller bottom_sans brother/brother brother_penetrating_brother brothers carrying carrying_another carrying_partner carrying_position clothed cropped digital_media duo ectopenis edit edited fontcest inactive_account incest intraspecies larger_male larger_penetrating larger_penetrating_smaller legwear looping_animation lowres male male/male male_only male_penetrated male_penetrating male_penetrating_male maledom monster monster_boy mp4 no_sound orange_penis papyrus_(undertale) papysans penetration penis sans_(undertale) sex short_playtime shorter_than_10_seconds sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks stand_and_carry_position third-party_edit thrusting top_papyrus undead undertale undertale_(series) video video_game_character video_games webm white_background yaoi
1:1 1:1_aspect_ratio 2021 2boys 2d abosinsin anal animated_skeleton animation bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller bottom_sans brother/brother brother_penetrating_brother brothers carrying carrying_another carrying_partner carrying_position clothed cropped cropped_image digital_media duo ectopenis edit fontcest gif inactive_account incest intraspecies larger_male larger_penetrating larger_penetrating_smaller legwear looping_animation lowres male male/male male_only male_penetrated male_penetrating male_penetrating_male maledom monster monster_boy orange_penis papyrus_(undertale) papysans penetration penis sans_(undertale) sex short_playtime sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks stand_and_carry_position third-party_edit thrusting top_papyrus undead undertale undertale_(series) video_game_character video_games white_background yaoi
1:1 1:1_aspect_ratio 2021 2boys 2d abosinsin anal animated_skeleton animation bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller bottom_sans brother/brother brother_penetrating_brother brothers carrying carrying_another carrying_partner carrying_position clothed cropped cropped_image digital_media duo ectopenis edit fontcest gif inactive_account incest intraspecies larger_male larger_penetrating larger_penetrating_smaller legwear looping_animation lowres male male/male male_only male_penetrated male_penetrating male_penetrating_male maledom monster monster_boy orange_penis papyrus_(undertale) papysans penetration penis sans_(undertale) sex short_playtime sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks stand_and_carry_position third-party_edit thrusting top_papyrus undead undertale undertale_(series) video_game_character video_games white_background yaoi
2010s 2018 2boys 2d 2d_(artwork) anal animated_skeleton artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket blue_tongue bottom_sans bottomless brother brother/brother brother_and_brother brother_penetrating_brother brothers chain chains clothed crying crying_with_eyes_open digital_media_(artwork) dominant dominant_male domination duo ectopenis ectoplasm ectotongue fontcest ganzooky gay genitals gradient_background hooded_jacket hoodie incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller male male/male male_penetrated male_penetrating male_penetrating_male maledom monster monster_boy non-con non-consensual noncon nonconsensual nsfwsinningsans open_mouth orange_background orange_penis papyrus papyrus_(undertale) papysans penetration penis rape red_gloves red_scarf sans sans_(undertale) scarf seme_papyrus sex sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom submissive sweat tears top_papyrus tumblr_username uke_sans undead undertale undertale_(series) video_game_character video_games yandere yaoi
2010s 2018 2boys 2d 2d_(artwork) anal animated_skeleton artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket blue_tongue bottom_sans bottomless brother brother/brother brother_and_brother brother_penetrating_brother brothers chain chains clothed crying crying_with_eyes_open digital_media_(artwork) dominant dominant_male domination duo ectopenis ectoplasm ectotongue fontcest ganzooky gay genitals gradient_background hooded_jacket hoodie incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller male male/male male_penetrated male_penetrating male_penetrating_male maledom monster monster_boy non-con non-consensual noncon nonconsensual nsfwsinningsans open_mouth orange_background orange_penis papyrus papyrus_(undertale) papysans penetration penis rape red_gloves red_scarf sans sans_(undertale) scarf seme_papyrus sex sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom submissive sweat tears top_papyrus tumblr_username uke_sans undead undertale undertale_(series) video_game_character video_games yandere yaoi
1_intersex 1boy 2020s 2021 2d abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant dominant_male dominant_pov duo edit english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maledom maleherm multiple_images penetrating_pov penetrator_pov penis penis_in_pussy pov pussy receiving_pov robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom spoken_heart submissive submissive_intersex submissive_pov taker_pov tear text third-party_edit thrusting thrusting_into_pussy twitter_username undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1_intersex 1boy 2020s 2021 2d abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant dominant_male dominant_pov duo edit english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maledom maleherm multiple_images penetrating_pov penetrator_pov penis penis_in_pussy pov pussy receiving_pov robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom spoken_heart submissive submissive_intersex submissive_pov taker_pov tear text third-party_edit thrusting thrusting_into_pussy twitter_username undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1_intersex 1boy 2020s 2021 2d 2d_ abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant dominant_male dominant_pov duo edit english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maledom maleherm multiple_images penetrating_pov penetrator_pov penis penis_in_pussy pov pussy receiving_pov robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom spoken_heart submissive submissive_intersex submissive_pov taker_pov tear text third-party_edit thrusting thrusting_into_pussy twitter_username undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1_intersex 1boy 2020s 2021 2d 2d_ abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant dominant_male dominant_pov duo edit english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maledom maleherm multiple_images penetrating_pov penetrator_pov penis penis_in_pussy pov pussy receiving_pov robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom spoken_heart submissive submissive_intersex submissive_pov taker_pov tear text third-party_edit thrusting thrusting_into_pussy twitter_username undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1_intersex 1boy 2020s 2021 2d abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant_pov duo english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maleherm penetrating_pov penetrator_pov penis penis_in_pussy pov pussy robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom solo_focus spoken_heart submissive_intersex tear text thrusting thrusting_into_pussy twitter_username undertale_(series) unseen_character vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1_intersex 1boy 2020s 2021 2d abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant_pov duo english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maleherm penetrating_pov penetrator_pov penis penis_in_pussy pov pussy robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom solo_focus spoken_heart submissive_intersex tear text thrusting thrusting_into_pussy twitter_username undertale_(series) unseen_character vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
2010s 2016 2boys 2d 2d_(artwork) alternate_version_available anal animated_skeleton artist_name artist_watermark big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blush bottom_sans brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_sex digital_media_(artwork) drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils heart_eyes humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom stealth_sex sweat text tongue top_papyrus tumblr uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath watermark x-ray yaoi
2010s 2016 2boys 2d 2d_(artwork) alternate_version_available anal animated_skeleton artist_name artist_watermark big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blush bottom_sans brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_sex digital_media_(artwork) drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils heart_eyes humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom stealth_sex sweat text tongue top_papyrus tumblr uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath watermark x-ray yaoi
2010s 2016 2boys 2d 2d_(artwork) alternate_version_available anal animated_skeleton artist_name artist_watermark big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blush bottom_sans brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_sex digital_media_(artwork) drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils heart_eyes humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom stealth_sex sweat text tongue top_papyrus tumblr uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath watermark yaoi
2010s 2016 2boys 2d 2d_(artwork) alternate_version_available anal animated_skeleton artist_name artist_watermark big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blush bottom_sans brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_sex digital_media_(artwork) drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils heart_eyes humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom stealth_sex sweat text tongue top_papyrus tumblr uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath watermark yaoi
2010s 2016 2boys 2d 2d_(artwork) alternate_version_available anal animated_skeleton artist_name artist_watermark big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blush bottom_sans brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_sex digital_media_(artwork) drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils heart_eyes humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble stealth_sex sweat text text_bubble tongue top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_character video_game_character video_games visible_breath watermark x-ray yaoi
2010s 2016 2boys 2d 2d_(artwork) alternate_version_available anal animated_skeleton artist_name artist_watermark big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blush bottom_sans brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_sex digital_media_(artwork) drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils heart_eyes humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble stealth_sex sweat text text_bubble tongue top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_character video_game_character video_games visible_breath watermark x-ray yaoi
2010s 2016 2boys 2d 2d_(artwork) alternate_version_available anal animated_skeleton artist_name artist_watermark big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blush bottom_sans brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_sex digital_media_(artwork) drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils heart_eyes humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble stealth_sex sweat text text_bubble tongue top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_character video_game_character video_games visible_breath watermark yaoi
2010s 2016 2boys 2d 2d_(artwork) alternate_version_available anal animated_skeleton artist_name artist_watermark big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blush bottom_sans brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_sex digital_media_(artwork) drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils heart_eyes humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble stealth_sex sweat text text_bubble tongue top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_character video_game_character video_games visible_breath watermark yaoi
2010s 2015 2boys 2d 2d_(artwork) anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_tongue blush bottom_sans bottomless bottomless_male clothed digital_media_(artwork) duo ectotongue elemental_creature elemental_humanoid fire_elemental gay grillby grillsans humanoid ladybumtickler larger_male larger_penetrating larger_penetrating_smaller male male/male male_only monster monster_boy orange_body orange_penis partially_clothed partially_clothed_male penis sans sans_(undertale) seme_grillby sex simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom sniggysmut top_grillby uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2010s 2015 2boys 2d 2d_(artwork) anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_tongue blush bottom_sans bottomless bottomless_male clothed digital_media_(artwork) duo ectotongue elemental_creature elemental_humanoid fire_elemental gay grillby grillsans humanoid ladybumtickler larger_male larger_penetrating larger_penetrating_smaller male male/male male_only monster monster_boy orange_body orange_penis partially_clothed partially_clothed_male penis sans sans_(undertale) seme_grillby sex simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom sniggysmut top_grillby uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
1boy 1other 2d ambiguous_gender androgynous artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male black_tongue darkner deltarune deltarune_chapter_2 digital_media duo hair_over_eyes human humanoid kicking kris_(dark_world_form)_(deltarune) kris_(deltarune) larger_male licking long_tongue macro macro_male male male_humanoid mercurialcrown micro non-consensual nonconsensual prehensile_tongue seme_spamton short_hair size_difference small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom spamton_g._spamton spamton_neo string sword tongue top_spamton undertale_(series) video_game_character video_games weapon
1boy 1other 2d ambiguous_gender androgynous artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male black_tongue darkner deltarune deltarune_chapter_2 digital_media duo hair_over_eyes human humanoid kicking kris_(dark_world_form)_(deltarune) kris_(deltarune) larger_male licking long_tongue macro macro_male male male_humanoid mercurialcrown micro non-consensual nonconsensual prehensile_tongue seme_spamton short_hair size_difference small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom spamton_g._spamton spamton_neo string sword tongue top_spamton undertale_(series) video_game_character video_games weapon
1boy 1other 2020s 2021 2d ambiguous_gender androgynous artist_name big_dom bigger_dom bigger_dom_smaller_sub bigger_male clothed darkner deltarune deltarune_chapter_2 digital_media english_text kris_(dark_world_form)_(deltarune) kris_(deltarune) larger_male mercurialcrown size_difference small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom soul soul_sex spamton_g._spamton spamton_neo string text undertale_(series) video_game_character video_games
1boy 1other 2020s 2021 2d ambiguous_gender androgynous artist_name big_dom bigger_dom bigger_dom_smaller_sub bigger_male clothed darkner deltarune deltarune_chapter_2 digital_media english_text kris_(dark_world_form)_(deltarune) kris_(deltarune) larger_male mercurialcrown size_difference small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom soul soul_sex spamton_g._spamton spamton_neo string text undertale_(series) video_game_character video_games
2010s 2017 2boys 2d 2males anal animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_eyes blue_penis blush bottom_sans comic_sans dark_background digital_media_(artwork) duo ectopenis elemental_creature elemental_humanoid english_text fire_elemental from_behind_position gay grabbing_from_behind grillby grillsans humanoid larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrating melle-d mellednsfw monster monster_boy one_eye_closed orange_body penetration penis profanity sans sans_(undertale) seme_grillby sex skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble text top_grillby uke_sans undead undertale undertale_(series) yaoi
2010s 2017 2boys 2d 2males anal animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_eyes blue_penis blush bottom_sans comic_sans dark_background digital_media_(artwork) duo ectopenis elemental_creature elemental_humanoid english_text fire_elemental from_behind_position gay grabbing_from_behind grillby grillsans humanoid larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrating melle-d mellednsfw monster monster_boy one_eye_closed orange_body penetration penis profanity sans sans_(undertale) seme_grillby sex skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble text top_grillby uke_sans undead undertale undertale_(series) yaoi
2010s 2015 2boys 2d animated_skeleton ball_gag big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_jacket blue_penis blue_tongue bottom_sans dark_background digital_media_(artwork) duo ectopenis ectotongue elemental_creature elemental_humanoid english_text fire_elemental gay genital_fluids genitals glasses glowing glowing_genitalia glowing_penis grillby grillsans handjob humanoid jacket larger_male male male/male male_only monster monster_boy mouth_gag open_mouth orange_body orgasm_denial penis precum rectangular_eyewear rectangular_glasses saliva sans sans_(undertale) scribble-secrets seme_grillby sitting skeleton small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom text tongue tongue_out top_grillby uke_sans undead undertale undertale_(series) white_background yaoi
2010s 2015 2boys 2d animated_skeleton ball_gag big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_jacket blue_penis blue_tongue bottom_sans dark_background digital_media_(artwork) duo ectopenis ectotongue elemental_creature elemental_humanoid english_text fire_elemental gay genital_fluids genitals glasses glowing glowing_genitalia glowing_penis grillby grillsans handjob humanoid jacket larger_male male male/male male_only monster monster_boy mouth_gag open_mouth orange_body orgasm_denial penis precum rectangular_eyewear rectangular_glasses saliva sans sans_(undertale) scribble-secrets seme_grillby sitting skeleton small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom text tongue tongue_out top_grillby uke_sans undead undertale undertale_(series) white_background yaoi
2010s 2018 2boys animated_skeleton arm_support big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male biting_lip blue_jacket blue_tongue bottom_sans duo ectotongue elemental_creature elemental_humanoid fellatio fire_elemental grillby grillsans humanoid jacket larger_male legs_apart legs_spread male male/male male_only monster monster_boy orange_body orange_penis penis sans sans_(undertale) seme_grillby sitting skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom text tongue tongue_out top_grillby uke_sans undead undertale undertale_(series) video_games weirddworms white_background yaoi
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