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ambiguous_gender anonymous antennae anthro crying disembodied_hands drooling excessive_cum feline fingering fingering_pussy furry honeybears hybrid moaning_in_pleasure multiple_hands orange_cum orange_tongue pinned_down pussy pussy_juice sparfy_(stariiuez) stariiuez sweat sweating table table_sex tears_in_eyes tears_of_pleasure two_tails wings
ambiguous_gender anonymous antennae anthro crying disembodied_hands drooling excessive_cum feline fingering fingering_pussy furry honeybears hybrid moaning_in_pleasure multiple_hands orange_cum orange_tongue pinned_down pussy pussy_juice sparfy_(stariiuez) stariiuez sweat sweating table table_sex tears_in_eyes tears_of_pleasure two_tails wings
1futa bive_(regretevator) black_hair black_skin black_tail black_tie blush_lines brown_belt brown_clothing brown_coat brown_pants clothed clothed_female clothing dickgirl emoji flabbergasted futanari glasses gray_teeth mostly_clothed mostly_clothed_female orange_tongue pawpads paws penis penis_out pink_blush pyralspite regretevator roblox roblox_game source_request split_(regretevator)
1futa bive_(regretevator) black_hair black_skin black_tail black_tie blush_lines brown_belt brown_clothing brown_coat brown_pants clothed clothed_female clothing dickgirl emoji flabbergasted futanari glasses gray_teeth mostly_clothed mostly_clothed_female orange_tongue pawpads paws penis penis_out pink_blush pyralspite regretevator roblox roblox_game source_request split_(regretevator)
2015 2boys 2d animated_skeleton arm_support bad_id bad_tumblr_id big_penis bigger_male blue_background bodily_fluids bottom_sans brother/brother brothers closed_eyes clothed clothed_male clothing digital_media duo ectopenis ectotongue erection fellatio fluids fontcest genitals gloves hooded_jacket hoodie inactive_account incest intraspecies jacket larger_male male male/male male_only monster monster_boy noxiousaberration open_mouth oral orange_penis orange_tongue papyrus_(undertale) papysans partially_colored penis penis_grab penis_through_clothing sans_(undertale) scarf sex sibling_incest siblings skeleton smaller_male solo_focus sweat teeth testicles third-party_source tongue top_papyrus undead undertale undertale_(series) video_game_character video_games yaoi
2015 2boys 2d animated_skeleton arm_support bad_id bad_tumblr_id big_penis bigger_male blue_background bodily_fluids bottom_sans brother/brother brothers closed_eyes clothed clothed_male clothing digital_media duo ectopenis ectotongue erection fellatio fluids fontcest genitals gloves hooded_jacket hoodie inactive_account incest intraspecies jacket larger_male male male/male male_only monster monster_boy noxiousaberration open_mouth oral orange_penis orange_tongue papyrus_(undertale) papysans partially_colored penis penis_grab penis_through_clothing sans_(undertale) scarf sex sibling_incest siblings skeleton smaller_male solo_focus sweat teeth testicles third-party_source tongue top_papyrus undead undertale undertale_(series) video_game_character video_games yaoi
1boy 1cuntboy 2016 2d ahegao animated_skeleton artist_name blue_blush blue_body blue_tongue blush bodily_fluids bottom_sans bottomless bottomless_cuntboy brother/brother brother_penetrating_brother brothers brown_background carrying carrying_partner carrying_position clothed clothing cuntboy cuntboy_penetrated digital_media duo ectobody ectopenis ectoplasm ectopussy ectotongue english_text fangs fontcest gasterass genitals gradient_legwear heart-shaped_pupils incest intraspecies legwear male male/cuntboy male_penetrating male_penetrating_cuntboy monster monster_boy nude orange_body orange_penis orange_tongue orsnge_blush papyrus_(undertale) papysans penetration penis pleasure_face profanity pussy sans_(undertale) sex sibling_incest siblings simple_background sitting skeleton solid_color_background speech_bubble stockings talking talking_to_another talking_to_partner teeth text thighhighs tongue tongue_out top_papyrus topwear two-tone_legwear two_tone_legwear undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games yaoi
1boy 1cuntboy 2016 2d ahegao animated_skeleton artist_name blue_blush blue_body blue_tongue blush bodily_fluids bottom_sans bottomless bottomless_cuntboy brother/brother brother_penetrating_brother brothers brown_background carrying carrying_partner carrying_position clothed clothing cuntboy cuntboy_penetrated digital_media duo ectobody ectopenis ectoplasm ectopussy ectotongue english_text fangs fontcest gasterass genitals gradient_legwear heart-shaped_pupils incest intraspecies legwear male male/cuntboy male_penetrating male_penetrating_cuntboy monster monster_boy nude orange_body orange_penis orange_tongue orsnge_blush papyrus_(undertale) papysans penetration penis pleasure_face profanity pussy sans_(undertale) sex sibling_incest siblings simple_background sitting skeleton solid_color_background speech_bubble stockings talking talking_to_another talking_to_partner teeth text thighhighs tongue tongue_out top_papyrus topwear two-tone_legwear two_tone_legwear undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games yaoi
2022 2boys 2d anal animated_skeleton bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_tongue blush bottom_on_top bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed digital_media_(artwork) duo ectopenis ectotongue fontcest from_front_position goma_dango_555 green_socks incest intraspecies kneeling larger_male larger_penetrating larger_penetrating_smaller making_out male male_only male_penetrating monster monster_boy orange_blush orange_socks orange_tongue papyrus_(undertale) papysans partially_clothed penetration penetration_from_front penis power_bottom saliva saliva_trail sans_(undertale) seme_papyrus sex sex_from_front sibling_incest siblings simple_background skeleton smaller_penetrated socks socks_on solid_color_background sweat tongue tongue_out toony top_papyrus topwear uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath yaoi
2022 2boys 2d anal animated_skeleton bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_tongue blush bottom_on_top bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed digital_media_(artwork) duo ectopenis ectotongue fontcest from_front_position goma_dango_555 green_socks incest intraspecies kneeling larger_male larger_penetrating larger_penetrating_smaller making_out male male_only male_penetrating monster monster_boy orange_blush orange_socks orange_tongue papyrus_(undertale) papysans partially_clothed penetration penetration_from_front penis power_bottom saliva saliva_trail sans_(undertale) seme_papyrus sex sex_from_front sibling_incest siblings simple_background skeleton smaller_penetrated socks socks_on solid_color_background sweat tongue tongue_out toony top_papyrus topwear uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath yaoi
2021 2boys 2d anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blue_tongue blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothes_lift crying digital_media duo ectopenis ectoplasm ectotongue fontcest from_front_position goma_dango_555 incest intraspecies larger_penetrating larger_penetrating_smaller making_out male male_only male_penetrating mastery_position monster monster_boy orange_blush orange_penis orange_tongue papyrus_(undertale) papysans partially_clothed partially_colored penetration penetration_from_front penis riding riding_penis sans_(undertale) seme_papyrus sex sex_from_front shirt_lift sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on sweat tears tongue tongue_out toony top_papyrus uke_sans undead undertale undertale_(series) video_games yaoi
2021 2boys 2d anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blue_tongue blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothes_lift crying digital_media duo ectopenis ectoplasm ectotongue fontcest from_front_position goma_dango_555 incest intraspecies larger_penetrating larger_penetrating_smaller making_out male male_only male_penetrating mastery_position monster monster_boy orange_blush orange_penis orange_tongue papyrus_(undertale) papysans partially_clothed partially_colored penetration penetration_from_front penis riding riding_penis sans_(undertale) seme_papyrus sex sex_from_front shirt_lift sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on sweat tears tongue tongue_out toony top_papyrus uke_sans undead undertale undertale_(series) video_games yaoi
2021 2boys 2d absurd_res animated_skeleton artist_name black_bottomwear black_clothing black_pants blue_blush blue_eye blue_hoodie blue_jacket blue_penis blush blush_lines blushing_male bodily_fluids bone boots bottom_sans brother/brother brothers candy candy_cane christmas christmas_sweater clothed clothing covering_mouth covering_own_mouth dessert digital_media dominant dominant_male duo ectopenis ectoplasm ectotongue english_text fluids fontcest food food_fetish food_insertion food_play footwear ganzooky genital_fluids genitals gloves glowing glowing_eye green_background greeting_card hand_on_mouth hat headgear headwear high_res holidays hooded_jacket hoodie improvised_sex_toy incest intraspecies jacket legs_apart male male/male male_only maledom malesub merry_christmas monster monster_boy object_insertion orange_blush orange_tongue outside_border pants papyrus_(undertale) papysans pattern_bottomwear pattern_clothing pattern_pants penis pink_footwear pink_slippers precum red_boots red_clothing red_footwear red_gloves red_ribbon ribbon ribbon_on_penis sans_(undertale) santa_hat sibling_incest siblings sitting skeleton slippers snow socks sounding spread_legs striped_bottomwear striped_clothing striped_pants stripes submissive submissive_male sweater teeth text tongue tongue_out top_papyrus translucent_penis two-tone_background undead undertale undertale_(series) urethral urethral_insertion video_games white_border yaoi
2021 2boys 2d absurd_res animated_skeleton artist_name black_bottomwear black_clothing black_pants blue_blush blue_eye blue_hoodie blue_jacket blue_penis blush blush_lines blushing_male bodily_fluids bone boots bottom_sans brother/brother brothers candy candy_cane christmas christmas_sweater clothed clothing covering_mouth covering_own_mouth dessert digital_media dominant dominant_male duo ectopenis ectoplasm ectotongue english_text fluids fontcest food food_fetish food_insertion food_play footwear ganzooky genital_fluids genitals gloves glowing glowing_eye green_background greeting_card hand_on_mouth hat headgear headwear high_res holidays hooded_jacket hoodie improvised_sex_toy incest intraspecies jacket legs_apart male male/male male_only maledom malesub merry_christmas monster monster_boy object_insertion orange_blush orange_tongue outside_border pants papyrus_(undertale) papysans pattern_bottomwear pattern_clothing pattern_pants penis pink_footwear pink_slippers precum red_boots red_clothing red_footwear red_gloves red_ribbon ribbon ribbon_on_penis sans_(undertale) santa_hat sibling_incest siblings sitting skeleton slippers snow socks sounding spread_legs striped_bottomwear striped_clothing striped_pants stripes submissive submissive_male sweater teeth text tongue tongue_out top_papyrus translucent_penis two-tone_background undead undertale undertale_(series) urethral urethral_insertion video_games white_border yaoi
! 2022 2boys 2d abosinsin animated_skeleton aroused artist_name bad_id bad_twitter_id bigger_male blush blushing_male brother/brother brothers clothed clothing comic_sans digital_media drinking_straw duo ectotongue english_text fontcest humanoid implied_incest inactive_account larger_male male male/male male_only monster monster_boy orange_tongue papyrus_(font) papyrus_(undertale) papysans plastic_cup sans_(undertale) siblings size_difference skeleton smaller_male speech_bubble talking talking_to_another text tongue twitter_username undead undertale undertale_(series) upper_body video_game_character video_games visible_breath white_background yaoi
! 2022 2boys 2d abosinsin animated_skeleton aroused artist_name bad_id bad_twitter_id bigger_male blush blushing_male brother/brother brothers clothed clothing comic_sans digital_media drinking_straw duo ectotongue english_text fontcest humanoid implied_incest inactive_account larger_male male male/male male_only monster monster_boy orange_tongue papyrus_(font) papyrus_(undertale) papysans plastic_cup sans_(undertale) siblings size_difference skeleton smaller_male speech_bubble talking talking_to_another text tongue twitter_username undead undertale undertale_(series) upper_body video_game_character video_games visible_breath white_background yaoi
2017 2boys 2d anal animated_skeleton bed bedroom black_legwear blue_blush blue_theme blue_tongue blush bodily_fluids bottom_sans bottomless bottomless_male brother/brother brother_penetrating_brother brothers closed_eyes clothed clothing digital_media doggy_position door duo ectotongue english_text fluids fontcest from_behind_position hooded_jacket hoodie incest indoors intraspecies jacket male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy motion_lines mounting on_bed orange_blush orange_tongue papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penetration_from_behind sans_(undertale) sex sex_from_behind sibling_incest siblings skeleton spookster teeth text thrusting tongue tongue_out top_papyrus undead undertale undertale_(series) visible_breath yaoi
2017 2boys 2d anal animated_skeleton bed bedroom black_legwear blue_blush blue_theme blue_tongue blush bodily_fluids bottom_sans bottomless bottomless_male brother/brother brother_penetrating_brother brothers closed_eyes clothed clothing digital_media doggy_position door duo ectotongue english_text fluids fontcest from_behind_position hooded_jacket hoodie incest indoors intraspecies jacket male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy motion_lines mounting on_bed orange_blush orange_tongue papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penetration_from_behind sans_(undertale) sex sex_from_behind sibling_incest siblings skeleton spookster teeth text thrusting tongue tongue_out top_papyrus undead undertale undertale_(series) visible_breath yaoi
! !? ... 13thcatofthegate 2018 2boys 2d absurd_res after_sex all_fours anal animated_skeleton arms_around_another arms_around_another's_neck arms_around_neck bedroom bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_cum blue_eye blue_penis blue_tongue blush bottom_sans brother/brother brother_penetrating_brother brothers clothed clothed_male comic comic_page comic_panel comic_sans completely_nude completely_nude_male crying cum cum_on_sheets digital_media doggy_position drooling duo ectopenis ectotongue edit ejaculation english_text extremely_large_filesize fontcest from_behind_position genitals glowing_eye hand_on_another's_chest hand_on_chest handjob handjob_while_penetrating hands_around_neck hugged_from_behind hugging humanoid incest incredibly_absurdres indoors intraspecies kissing kissing_cheek large_filesize larger_male larger_penetrating larger_penetrating_smaller laying_down licking_neck licking_tongue long_image looking_at_another looking_at_partner lying making_out male male/male male_only male_penetrated male_penetrating male_penetrating_male monster multiple_images nude nude_male orange_blush orange_eye orange_penis orange_tongue orgasm papyrus_(undertale) papysans partially_clothed partially_clothed_male partially_colored penetration penetration_from_behind penis saliva_string saliva_trail sans_(undertale) sequential sex sex_from_behind shirt_removed shorter_male sibling_incest siblings skeleton sleeping sleeping_nude sleeping_together smaller_male smaller_penetrated soul soul_sex speech_bubble spoken_ellipsis spoken_exclamation_mark taking_off_clothes talking talking_to_another tall_image taller_male tears text third-party_edit tongue tongue_out top_papyrus topless topless_male undead undertale undertale_(series) undressed undressing undressing_another undressing_partner video_game_character video_games wake_up yaoi zzz
! !? ... 13thcatofthegate 2018 2boys 2d absurd_res after_sex all_fours anal animated_skeleton arms_around_another arms_around_another's_neck arms_around_neck bedroom bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_cum blue_eye blue_penis blue_tongue blush bottom_sans brother/brother brother_penetrating_brother brothers clothed clothed_male comic comic_page comic_panel comic_sans completely_nude completely_nude_male crying cum cum_on_sheets digital_media doggy_position drooling duo ectopenis ectotongue edit ejaculation english_text extremely_large_filesize fontcest from_behind_position genitals glowing_eye hand_on_another's_chest hand_on_chest handjob handjob_while_penetrating hands_around_neck hugged_from_behind hugging humanoid incest incredibly_absurdres indoors intraspecies kissing kissing_cheek large_filesize larger_male larger_penetrating larger_penetrating_smaller laying_down licking_neck licking_tongue long_image looking_at_another looking_at_partner lying making_out male male/male male_only male_penetrated male_penetrating male_penetrating_male monster multiple_images nude nude_male orange_blush orange_eye orange_penis orange_tongue orgasm papyrus_(undertale) papysans partially_clothed partially_clothed_male partially_colored penetration penetration_from_behind penis saliva_string saliva_trail sans_(undertale) sequential sex sex_from_behind shirt_removed shorter_male sibling_incest siblings skeleton sleeping sleeping_nude sleeping_together smaller_male smaller_penetrated soul soul_sex speech_bubble spoken_ellipsis spoken_exclamation_mark taking_off_clothes talking talking_to_another tall_image taller_male tears text third-party_edit tongue tongue_out top_papyrus topless topless_male undead undertale undertale_(series) undressed undressing undressing_another undressing_partner video_game_character video_games wake_up yaoi zzz
1boy 1cuntboy 2017 2d animated_skeleton begging_to_stop blue_blush blue_body blush bottom_sans broken_glass brother brother/brother brother_penetrating_brother brothers clothed clothed_male comic comic_page comic_panel couch couch_sex crying cuntboy cuntboy_penetrated cuntboysub digital_media dominant dominant_male domination dubious_consent duo ectobody ectopenis ectopussy ectotongue edit english_text fontcest from_front_position genitals glass glowing_eye grabbing_clothing holding_glass humanoid incest intraspecies large_filesize leg_over_shoulder licking long_image male male/cuntboy male_only male_penetrating male_penetrating_cuntboy maledom missionary_position monster monster_boy multiple_images non-consensual nonconsensual on_couch onomatopoeia orange_blush orange_penis orange_tongue pants_around_one_leg papyrus_(undertale) papysans penetration penis_through_fly pleading profanity pussy questionable_consent rape sans_(undertale) sequential sex sex_on_couch sibling_incest siblings skeleton soul soul_sex speech_bubble submissive submissive_cuntboy supermuuh sweat talking tall_image tears teeth teleport text third-party_edit top_papyrus undead undertale undertale_(series) unzipped unzipped_pants vaginal veiny_penis video_game_character video_games yandere yaoi
1boy 1cuntboy 2017 2d animated_skeleton begging_to_stop blue_blush blue_body blush bottom_sans broken_glass brother brother/brother brother_penetrating_brother brothers clothed clothed_male comic comic_page comic_panel couch couch_sex crying cuntboy cuntboy_penetrated cuntboysub digital_media dominant dominant_male domination dubious_consent duo ectobody ectopenis ectopussy ectotongue edit english_text fontcest from_front_position genitals glass glowing_eye grabbing_clothing holding_glass humanoid incest intraspecies large_filesize leg_over_shoulder licking long_image male male/cuntboy male_only male_penetrating male_penetrating_cuntboy maledom missionary_position monster monster_boy multiple_images non-consensual nonconsensual on_couch onomatopoeia orange_blush orange_penis orange_tongue pants_around_one_leg papyrus_(undertale) papysans penetration penis_through_fly pleading profanity pussy questionable_consent rape sans_(undertale) sequential sex sex_on_couch sibling_incest siblings skeleton soul soul_sex speech_bubble submissive submissive_cuntboy supermuuh sweat talking tall_image tears teeth teleport text third-party_edit top_papyrus undead undertale undertale_(series) unzipped unzipped_pants vaginal veiny_penis video_game_character video_games yandere yaoi
2022 2boys 2d animated_skeleton beetleevil blue_blush blue_hoodie blue_jacket blush blushing_male bottom_sans brother/brother brothers clothed clothed_male clothing digital_media duo ectoplasm ectotongue evilbeetle fontcest gloves grabbing_arm grey_background heart-shaped_pupils heart_eyes hooded_jacket hoodie incest intraspecies jacket licking male male/male male_only monster monster_boy orange_blush orange_tongue papyrus_(undertale) papysans red_gloves red_scarf sans_(undertale) scarf seme_papyrus sibling_incest siblings simple_background skeleton soul soul_sex tears tears_of_pleasure teeth top_papyrus trembling uke_sans undead undertale undertale_(series) upper_body visible_breath yaoi
2022 2boys 2d animated_skeleton beetleevil blue_blush blue_hoodie blue_jacket blush blushing_male bottom_sans brother/brother brothers clothed clothed_male clothing digital_media duo ectoplasm ectotongue evilbeetle fontcest gloves grabbing_arm grey_background heart-shaped_pupils heart_eyes hooded_jacket hoodie incest intraspecies jacket licking male male/male male_only monster monster_boy orange_blush orange_tongue papyrus_(undertale) papysans red_gloves red_scarf sans_(undertale) scarf seme_papyrus sibling_incest siblings simple_background skeleton soul soul_sex tears tears_of_pleasure teeth top_papyrus trembling uke_sans undead undertale undertale_(series) upper_body visible_breath yaoi
2019 2boys 2d animated_skeleton arm_support beetleevil blue_blush blush bottom_sans brother/brother brothers closed_eyes clothed clothing crotch_rub digital_media duo ectotongue erection erection_under_clothes evilbeetle fontcest glowing glowing_genitalia grey_background grope_from_behind groping groping_from_behind hand_on_crotch hand_under_clothes hand_under_shirt humanoid incest intraspecies licking licking_neck male male/male male_focus male_only monochrome monster monster_boy one_eye_closed orange_blush orange_tongue pants papyrus_(undertale) papysans partially_colored sans_(undertale) sibling_incest siblings simple_background skeleton tongue top_papyrus touching_crotch undead undertale undertale_(series) yaoi
2019 2boys 2d animated_skeleton arm_support beetleevil blue_blush blush bottom_sans brother/brother brothers closed_eyes clothed clothing crotch_rub digital_media duo ectotongue erection erection_under_clothes evilbeetle fontcest glowing glowing_genitalia grey_background grope_from_behind groping groping_from_behind hand_on_crotch hand_under_clothes hand_under_shirt humanoid incest intraspecies licking licking_neck male male/male male_focus male_only monochrome monster monster_boy one_eye_closed orange_blush orange_tongue pants papyrus_(undertale) papysans partially_colored sans_(undertale) sibling_incest siblings simple_background skeleton tongue top_papyrus touching_crotch undead undertale undertale_(series) yaoi
2016 2boys 2d alternate_costume amortem-kun animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blue_hoodie blue_jacket blue_slippers blush boots bottom_sans brother/brother brothers chair clothed clothing couch digital_media duo ectotongue fontcest formal formal_clothes formal_wear furniture gloves hand_in_pocket hands_on_own_hips height_difference hooded_jacket hoodie humanoid incest intraspecies jacket kissing larger_male licking licking_neck male male/male male_only monster monster_boy multiple_views neck_tie necktie necktie_grab on_chair on_couch on_stool orange_blush orange_necktie orange_tongue papyrus_(undertale) papysans red_footwear red_gloves sans_(undertale) shoes shorter_male sibling_incest siblings simple_background sitting size_difference skeleton slippers small_sub smaller_male smaller_sub smaller_sub_bigger_dom standing stool suit taller_male teeth top_papyrus undead undertale undertale_(series) video_game_character video_games white_background yaoi
2016 2boys 2d alternate_costume amortem-kun animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blue_hoodie blue_jacket blue_slippers blush boots bottom_sans brother/brother brothers chair clothed clothing couch digital_media duo ectotongue fontcest formal formal_clothes formal_wear furniture gloves hand_in_pocket hands_on_own_hips height_difference hooded_jacket hoodie humanoid incest intraspecies jacket kissing larger_male licking licking_neck male male/male male_only monster monster_boy multiple_views neck_tie necktie necktie_grab on_chair on_couch on_stool orange_blush orange_necktie orange_tongue papyrus_(undertale) papysans red_footwear red_gloves sans_(undertale) shoes shorter_male sibling_incest siblings simple_background sitting size_difference skeleton slippers small_sub smaller_male smaller_sub smaller_sub_bigger_dom standing stool suit taller_male teeth top_papyrus undead undertale undertale_(series) video_game_character video_games white_background yaoi
1:1 1:1_aspect_ratio 1boy 1girl 2017 2d animated_skeleton artist_name big_breasts blue_blush blue_body blue_breasts blue_jacket blue_nipples blush breasts brother/sister brother_and_sister clothed_male digital_media duo ectobody ectobreasts ectotongue female_sans fontcest genderswap genderswap_(mtf) grey_background hood hooded_jacket incest intraspecies jacket licking licking_nipples male memeshero monster nursing off_shoulder off_shoulders orange_blush orange_tongue papyrus_(undertale) papysans partially_clothed redrawn sans_(undertale) sibling_incest siblings simple_background skeleton sucking_nipples undead undertale undertale_(series) video_game_character video_games
1:1 1:1_aspect_ratio 1boy 1girl 2017 2d animated_skeleton artist_name big_breasts blue_blush blue_body blue_breasts blue_jacket blue_nipples blush breasts brother/sister brother_and_sister clothed_male digital_media duo ectobody ectobreasts ectotongue female_sans fontcest genderswap genderswap_(mtf) grey_background hood hooded_jacket incest intraspecies jacket licking licking_nipples male memeshero monster nursing off_shoulder off_shoulders orange_blush orange_tongue papyrus_(undertale) papysans partially_clothed redrawn sans_(undertale) sibling_incest siblings simple_background skeleton sucking_nipples undead undertale undertale_(series) video_game_character video_games
1:1 1:1_aspect_ratio 1boy 1boy1girl 1girl 2016 2d animated_skeleton artist_name big_breasts blue_blush blue_body blue_breasts blue_jacket blue_nipples blush breasts brother/sister brother_and_sister clothed_male digital_media duo ectobody ectobreasts ectotongue female_sans fontcest genderswap genderswap_(mtf) grey_background hooded_jacket hoodie incest intraspecies jacket licking licking_nipples male memeshero monster nipples nursing off_shoulder off_shoulders orange_blush orange_tongue papyrus_(undertale) papysans partially_clothed sans_(undertale) sibling_incest siblings simple_background skeleton solid_color_background sucking_nipples undead undertale undertale_(series) upper_body video_game_character video_games
1:1 1:1_aspect_ratio 1boy 1boy1girl 1girl 2016 2d animated_skeleton artist_name big_breasts blue_blush blue_body blue_breasts blue_jacket blue_nipples blush breasts brother/sister brother_and_sister clothed_male digital_media duo ectobody ectobreasts ectotongue female_sans fontcest genderswap genderswap_(mtf) grey_background hooded_jacket hoodie incest intraspecies jacket licking licking_nipples male memeshero monster nipples nursing off_shoulder off_shoulders orange_blush orange_tongue papyrus_(undertale) papysans partially_clothed sans_(undertale) sibling_incest siblings simple_background skeleton solid_color_background sucking_nipples undead undertale undertale_(series) upper_body video_game_character video_games
1boy 1cuntboy 2010s 2018 2d 2d_(artwork) animated_skeleton blue_blush blue_pussy blush bottom_sans brother brother/brother brother_and_brother brothers clothed comic comic_page comic_panel cunnilingus cuntboy cuntboysub digital_media_(artwork) dominant dominant_male duo ectopussy ectotongue fontcest genitals heart-shaped_pupils heart_eyes humanoid incest indoors intraspecies licking_pussy_through_clothes male male/cuntboy maledom monochrome monster monster_boy oral orange_blush orange_tongue papyrus papyrus_(undertale) papysans partially_colored pussy pussy_through_clothing sans sans_(undertale) seme_papyrus sequence sequential sibling_incest siblings skeleton submissive submissive_cuntboy titleze tongue tongue_in_pussy top_papyrus uke_sans undead undertale undertale_(series) vaginal video_games yaoi
1boy 1cuntboy 2010s 2018 2d 2d_(artwork) animated_skeleton blue_blush blue_pussy blush bottom_sans brother brother/brother brother_and_brother brothers clothed comic comic_page comic_panel cunnilingus cuntboy cuntboysub digital_media_(artwork) dominant dominant_male duo ectopussy ectotongue fontcest genitals heart-shaped_pupils heart_eyes humanoid incest indoors intraspecies licking_pussy_through_clothes male male/cuntboy maledom monochrome monster monster_boy oral orange_blush orange_tongue papyrus papyrus_(undertale) papysans partially_colored pussy pussy_through_clothing sans sans_(undertale) seme_papyrus sequence sequential sibling_incest siblings skeleton submissive submissive_cuntboy titleze tongue tongue_in_pussy top_papyrus uke_sans undead undertale undertale_(series) vaginal video_games yaoi
1boy 1cuntboy 2010s 2018 2d 2d_(artwork) ? animated_skeleton blank_speech_bubble blue_blush blue_pussy blush bottom_sans brother brother/brother brother_and_brother brothers clothed comic comic_page comic_panel cunnilingus cuntboy cuntboysub digital_media_(artwork) dominant dominant_male duo ectopussy ectotongue fontcest genitals humanoid incest indoors intraspecies licking_pussy_through_clothes long_tongue male male/cuntboy maledom monochrome monster monster_boy oral orange_blush orange_tongue papyrus papyrus_(undertale) papysans partially_colored pussy pussy_through_clothing sans sans_(undertale) seme_papyrus sequence sequential sibling_incest siblings skeleton speech_bubble submissive submissive_cuntboy titleze tongue tongue_in_pussy top_papyrus uke_sans undead undertale undertale_(series) vaginal video_games yaoi
1boy 1cuntboy 2010s 2018 2d 2d_(artwork) ? animated_skeleton blank_speech_bubble blue_blush blue_pussy blush bottom_sans brother brother/brother brother_and_brother brothers clothed comic comic_page comic_panel cunnilingus cuntboy cuntboysub digital_media_(artwork) dominant dominant_male duo ectopussy ectotongue fontcest genitals humanoid incest indoors intraspecies licking_pussy_through_clothes long_tongue male male/cuntboy maledom monochrome monster monster_boy oral orange_blush orange_tongue papyrus papyrus_(undertale) papysans partially_colored pussy pussy_through_clothing sans sans_(undertale) seme_papyrus sequence sequential sibling_incest siblings skeleton speech_bubble submissive submissive_cuntboy titleze tongue tongue_in_pussy top_papyrus uke_sans undead undertale undertale_(series) vaginal video_games yaoi
1boy 1cuntboy 2010s 2018 2d 2d_(artwork) animated_skeleton blank_speech_bubble blue_pussy blush bottom_sans brother brother/brother brother_and_brother brothers clothed comic comic_page comic_panel cunnilingus cuntboy cuntboysub digital_media_(artwork) dominant dominant_male duo ectopussy ectotongue fontcest genitals humanoid incest indoors intraspecies licking_pussy_through_clothes male male/cuntboy maledom monochrome monster monster_boy oral orange_tongue papyrus papyrus_(undertale) papysans partially_colored pussy pussy_through_clothing sans sans_(undertale) seme_papyrus sequence sequential sibling_incest siblings skeleton speech_bubble submissive submissive_cuntboy titleze tongue tongue_in_pussy tongue_out top_papyrus uke_sans undead undertale undertale_(series) vaginal video_games yaoi
1boy 1cuntboy 2010s 2018 2d 2d_(artwork) animated_skeleton blank_speech_bubble blue_pussy blush bottom_sans brother brother/brother brother_and_brother brothers clothed comic comic_page comic_panel cunnilingus cuntboy cuntboysub digital_media_(artwork) dominant dominant_male duo ectopussy ectotongue fontcest genitals humanoid incest indoors intraspecies licking_pussy_through_clothes male male/cuntboy maledom monochrome monster monster_boy oral orange_tongue papyrus papyrus_(undertale) papysans partially_colored pussy pussy_through_clothing sans sans_(undertale) seme_papyrus sequence sequential sibling_incest siblings skeleton speech_bubble submissive submissive_cuntboy titleze tongue tongue_in_pussy tongue_out top_papyrus uke_sans undead undertale undertale_(series) vaginal video_games yaoi
... 1boy 1cuntboy 2010s 2018 2d animated_skeleton bent_over blank_speech_bubble blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers clothed comic comic_page comic_panel cuntboy cuntboysub digital_media_(artwork) dominant dominant_male duo ectotongue fontcest grabbing_ass humanoid imminent_cunnilingus imminent_oral incest indoors intraspecies male male/cuntboy maledom monochrome monster monster_boy one_eye_closed orange_blush orange_tongue papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential sibling_incest siblings skeleton speech_bubble submissive submissive_cuntboy titleze tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) wink yaoi
... 1boy 1cuntboy 2010s 2018 2d animated_skeleton bent_over blank_speech_bubble blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers clothed comic comic_page comic_panel cuntboy cuntboysub digital_media_(artwork) dominant dominant_male duo ectotongue fontcest grabbing_ass humanoid imminent_cunnilingus imminent_oral incest indoors intraspecies male male/cuntboy maledom monochrome monster monster_boy one_eye_closed orange_blush orange_tongue papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential sibling_incest siblings skeleton speech_bubble submissive submissive_cuntboy titleze tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) wink yaoi
13thcatofthegate 2018 2boys 2d animated_skeleton bigger_male blue_blush blush bottom_sans brother/brother brothers comic comic_page comic_panel comic_sans digital_media duo ectotongue english_text fontcest gay humanoid incest indoors intraspecies larger_male licking licking_neck male male/male male_only monster orange_blush orange_tongue papyrus_(undertale) papysans partially_colored sans_(undertale) sequential shorter_male sibling_incest siblings skeleton smaller_male soul soul_sex speech_bubble taller_male text text_bubble tongue top_papyrus topless topless_male undead undertale undertale_(series) yaoi
13thcatofthegate 2018 2boys 2d animated_skeleton bigger_male blue_blush blush bottom_sans brother/brother brothers comic comic_page comic_panel comic_sans digital_media duo ectotongue english_text fontcest gay humanoid incest indoors intraspecies larger_male licking licking_neck male male/male male_only monster orange_blush orange_tongue papyrus_(undertale) papysans partially_colored sans_(undertale) sequential shorter_male sibling_incest siblings skeleton smaller_male soul soul_sex speech_bubble taller_male text text_bubble tongue top_papyrus topless topless_male undead undertale undertale_(series) yaoi
... 13thcatofthegate 2018 2boys 2d animated_skeleton bigger_male blue_blush blue_tongue blush brother/brother brothers comic comic_page comic_panel comic_sans digital_media duo ectotongue english_text fontcest gay hand_on_another's_chest hand_on_chest humanoid incest indoors intraspecies kissing kissing_cheek larger_male licking_tongue making_out male male/male male_only monster orange_blush orange_tongue papyrus_(undertale) papysans partially_colored sans_(undertale) sequential shirt_removed shorter_male sibling_incest siblings skeleton smaller_male speech_bubble spoken_ellipsis taking_off_clothes taller_male text tongue topless topless_male undead undertale undertale_(series) undressing undressing_another undressing_partner video_game_character video_games yaoi
... 13thcatofthegate 2018 2boys 2d animated_skeleton bigger_male blue_blush blue_tongue blush brother/brother brothers comic comic_page comic_panel comic_sans digital_media duo ectotongue english_text fontcest gay hand_on_another's_chest hand_on_chest humanoid incest indoors intraspecies kissing kissing_cheek larger_male licking_tongue making_out male male/male male_only monster orange_blush orange_tongue papyrus_(undertale) papysans partially_colored sans_(undertale) sequential shirt_removed shorter_male sibling_incest siblings skeleton smaller_male speech_bubble spoken_ellipsis taking_off_clothes taller_male text tongue topless topless_male undead undertale undertale_(series) undressing undressing_another undressing_partner video_game_character video_games yaoi
! 13thcatofthegate 2018 2boys 2d animated_skeleton bed bigger_male blue_blush blue_tongue blush brother/brother brothers comic comic_page comic_panel comic_sans crying cuddling digital_media duo ectotongue english_text fontcest gay hugging humanoid incest indoors intraspecies kissing larger_male making_out male male/male male_only monster on_bed on_side orange_blush orange_tongue papyrus_(undertale) papysans partially_colored saliva_string saliva_trail sans_(undertale) sequential shorter_male sibling_incest siblings skeleton smaller_male speech_bubble spoken_exclamation_mark taller_male tears text tongue undead undertale undertale_(series) wake_up yaoi
! 13thcatofthegate 2018 2boys 2d animated_skeleton bed bigger_male blue_blush blue_tongue blush brother/brother brothers comic comic_page comic_panel comic_sans crying cuddling digital_media duo ectotongue english_text fontcest gay hugging humanoid incest indoors intraspecies kissing larger_male making_out male male/male male_only monster on_bed on_side orange_blush orange_tongue papyrus_(undertale) papysans partially_colored saliva_string saliva_trail sans_(undertale) sequential shorter_male sibling_incest siblings skeleton smaller_male speech_bubble spoken_exclamation_mark taller_male tears text tongue undead undertale undertale_(series) wake_up yaoi
... 2010s 2018 2boys 2d 2d_(artwork) animated_skeleton artist_name black_background blue_tongue blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothed_male clothing comic comic_page comic_panel cum cum_on_face cumshot digital_media_(artwork) dirty_talk dominant dominant_male domination dubious_consent duo echoheartx ectopenis ectotongue ejaculation elegantfolly english_text fellatio fontcest fully_clothed fully_clothed_male gay gloves grabbing_head head_grab hooded_jacket hoodie incest jacket licking_penis male male/male male_only maledom malesub monochrome monster oral orange_cum orange_penis orange_tongue orgasm papyrus papyrus_(undertale) papysans partially_colored penis prehensile_penis sans sans_(undertale) seme_papyrus semen_on_face sequence sequential skeleton submissive submissive_male sweat tentacle_penis text tongue top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
... 2010s 2018 2boys 2d 2d_(artwork) animated_skeleton artist_name black_background blue_tongue blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothed_male clothing comic comic_page comic_panel cum cum_on_face cumshot digital_media_(artwork) dirty_talk dominant dominant_male domination dubious_consent duo echoheartx ectopenis ectotongue ejaculation elegantfolly english_text fellatio fontcest fully_clothed fully_clothed_male gay gloves grabbing_head head_grab hooded_jacket hoodie incest jacket licking_penis male male/male male_only maledom malesub monochrome monster oral orange_cum orange_penis orange_tongue orgasm papyrus papyrus_(undertale) papysans partially_colored penis prehensile_penis sans sans_(undertale) seme_papyrus semen_on_face sequence sequential skeleton submissive submissive_male sweat tentacle_penis text tongue top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton artist_name black_background blue_tongue blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothed_male clothing comic comic_page comic_panel digital_media_(artwork) dirty_talk dominant dominant_male domination dubious_consent duo echoheartx ectopenis ectotongue elegantfolly english_text fellatio fontcest fully_clothed fully_clothed_male gay gloves grabbing_head head_grab hooded_jacket hoodie incest jacket licking_penis male male/male male_only maledom malesub monochrome monster oral orange_penis orange_tongue papyrus papyrus_(undertale) papysans partially_colored penis prehensile_penis profanity sans sans_(undertale) seme_papyrus sequence sequential sitting skeleton submissive submissive_male tentacle_penis text tongue top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton artist_name black_background blue_tongue blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothed_male clothing comic comic_page comic_panel digital_media_(artwork) dirty_talk dominant dominant_male domination dubious_consent duo echoheartx ectopenis ectotongue elegantfolly english_text fellatio fontcest fully_clothed fully_clothed_male gay gloves grabbing_head head_grab hooded_jacket hoodie incest jacket licking_penis male male/male male_only maledom malesub monochrome monster oral orange_penis orange_tongue papyrus papyrus_(undertale) papysans partially_colored penis prehensile_penis profanity sans sans_(undertale) seme_papyrus sequence sequential sitting skeleton submissive submissive_male tentacle_penis text tongue top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton artist_name black_background blue_tongue blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothed_male clothing comic comic_page comic_panel digital_media_(artwork) dirty_talk dominant dominant_male domination dubious_consent duo echoheartx ectopenis ectotongue elegantfolly english_text fellatio fontcest fully_clothed fully_clothed_male gay gloves grabbing_head head_grab hooded_jacket hoodie incest jacket licking_penis male male/male male_only maledom malesub monochrome monster oral orange_penis orange_tongue papyrus papyrus_(undertale) papysans partially_colored penis prehensile_penis profanity sans sans_(undertale) seme_papyrus sequence sequential sitting skeleton submissive submissive_male tentacle_penis text tongue top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton artist_name black_background blue_tongue blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothed_male clothing comic comic_page comic_panel digital_media_(artwork) dirty_talk dominant dominant_male domination dubious_consent duo echoheartx ectopenis ectotongue elegantfolly english_text fellatio fontcest fully_clothed fully_clothed_male gay gloves grabbing_head head_grab hooded_jacket hoodie incest jacket licking_penis male male/male male_only maledom malesub monochrome monster oral orange_penis orange_tongue papyrus papyrus_(undertale) papysans partially_colored penis prehensile_penis profanity sans sans_(undertale) seme_papyrus sequence sequential sitting skeleton submissive submissive_male tentacle_penis text tongue top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2018 2boys 2d animated_skeleton bed bedroom blue_blush blue_tongue blush bottom_sans brother/brother brothers chinese_text clothed comic digital_media duo ectotongue edit fontcest gay humanoid incest indoors interlocked_fingers intertwined_fingers intraspecies long_image making_out male male/male male_focus male_only monochrome monster monster_boy multiple_images on_bed orange_blush orange_tongue papyrus_(undertale) papysans partially_colored saliva_trail sans_(undertale) sibling_incest siblings skeleton speech_bubble tall_image text third-party_edit top_papyrus undead undertale undertale_(series) veah-3sin video_games yaoi
2018 2boys 2d animated_skeleton bed bedroom blue_blush blue_tongue blush bottom_sans brother/brother brothers chinese_text clothed comic digital_media duo ectotongue edit fontcest gay humanoid incest indoors interlocked_fingers intertwined_fingers intraspecies long_image making_out male male/male male_focus male_only monochrome monster monster_boy multiple_images on_bed orange_blush orange_tongue papyrus_(undertale) papysans partially_colored saliva_trail sans_(undertale) sibling_incest siblings skeleton speech_bubble tall_image text third-party_edit top_papyrus undead undertale undertale_(series) veah-3sin video_games yaoi
2018 2boys 2d animated_skeleton bed bedroom blue_blush blue_tongue blush bottom_sans brother/brother brothers chinese_text clothed comic digital_media duo ectotongue fontcest gay humanoid incest indoors interlocked_fingers intertwined_fingers intraspecies making_out male male/male male_focus male_only monochrome monster monster_boy on_bed orange_blush orange_tongue papyrus_(undertale) papysans saliva_trail sans_(undertale) sibling_incest siblings skeleton speech_bubble text top_papyrus undead undertale undertale_(series) upper_body veah-3sin video_games yaoi
2018 2boys 2d animated_skeleton bed bedroom blue_blush blue_tongue blush bottom_sans brother/brother brothers chinese_text clothed comic digital_media duo ectotongue fontcest gay humanoid incest indoors interlocked_fingers intertwined_fingers intraspecies making_out male male/male male_focus male_only monochrome monster monster_boy on_bed orange_blush orange_tongue papyrus_(undertale) papysans saliva_trail sans_(undertale) sibling_incest siblings skeleton speech_bubble text top_papyrus undead undertale undertale_(series) upper_body veah-3sin video_games yaoi
2017 2d animated_skeleton blue_blush blush bottom_sans brother/brother brothers comic comic_page comic_panel digital_media dominant dominant_male domination duo ectotongue english_text fontcest gay glowing_eye humanoid incest intraspecies licking male male_only maledom monster monster_boy non-consensual nonconsensual orange_tongue papyrus_(undertale) papysans sans_(undertale) sequential sibling_incest siblings skeleton soul soul_sex speech_bubble submissive supermuuh teeth text top_papyrus undead undertale undertale_(series) yandere yaoi
2017 2d animated_skeleton blue_blush blush bottom_sans brother/brother brothers comic comic_page comic_panel digital_media dominant dominant_male domination duo ectotongue english_text fontcest gay glowing_eye humanoid incest intraspecies licking male male_only maledom monster monster_boy non-consensual nonconsensual orange_tongue papyrus_(undertale) papysans sans_(undertale) sequential sibling_incest siblings skeleton soul soul_sex speech_bubble submissive supermuuh teeth text top_papyrus undead undertale undertale_(series) yandere 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 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
2015 2boys 2d animated_skeleton arms_around_another arms_around_another's_neck arms_around_neck artist_name blue_blush blue_eye blue_tongue blush brother/brother brothers digital_media duo ectotongue fontcest gay glowing glowing_eye heart-shaped_pupils heart_eyes humanoid incest intraspecies laddinger making_out male male/male male_only monster monster_boy nude nude_male onomatopoeia orange_blush orange_eye orange_tongue papyrus_(undertale) papysans ribs sans_(undertale) sibling_incest siblings simple_background skeleton sweat teeth text undead undertale undertale_(series) upper_body watermark white_background yaoi
2015 2boys 2d animated_skeleton arms_around_another arms_around_another's_neck arms_around_neck artist_name blue_blush blue_eye blue_tongue blush brother/brother brothers digital_media duo ectotongue fontcest gay glowing glowing_eye heart-shaped_pupils heart_eyes humanoid incest intraspecies laddinger making_out male male/male male_only monster monster_boy nude nude_male onomatopoeia orange_blush orange_eye orange_tongue papyrus_(undertale) papysans ribs sans_(undertale) sibling_incest siblings simple_background skeleton sweat teeth text undead undertale undertale_(series) upper_body watermark white_background yaoi
1:1 1:1_aspect_ratio 2017 2boys 2d animated_skeleton bed bedroom big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blue_penis blue_tongue blush boots bottom_sans bottomless bottomless_male brother/brother brother_penetrating_brother brothers digital_media duo ectopenis ectoplasm ectotongue facing_another fontcest gay gloves glowing glowing_eye glowing_genitalia glowing_penis humanoid incest indoors intraspecies jacket larger_male larger_penetrating male male/male male_focus male_only male_penetrated male_penetrating male_penetrating_male mastery_position monster monster_boy on_bed orange_blush orange_penis orange_tongue papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration pink_slippers precum precum_drip precum_on_penis red_boots red_gloves saliva saliva_on_finger sans_(undertale) sex shoes_on sibling_incest siblings sitting_on_bed skeleton slippers small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom soul soul_sex sweat text tongue tongue_out top_papyrus undead undertale undertale_(series) unknown_artist video_game_character video_games yaoi
1:1 1:1_aspect_ratio 2017 2boys 2d animated_skeleton bed bedroom big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_jacket blue_penis blue_tongue blush boots bottom_sans bottomless bottomless_male brother/brother brother_penetrating_brother brothers digital_media duo ectopenis ectoplasm ectotongue facing_another fontcest gay gloves glowing glowing_eye glowing_genitalia glowing_penis humanoid incest indoors intraspecies jacket larger_male larger_penetrating male male/male male_focus male_only male_penetrated male_penetrating male_penetrating_male mastery_position monster monster_boy on_bed orange_blush orange_penis orange_tongue papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration pink_slippers precum precum_drip precum_on_penis red_boots red_gloves saliva saliva_on_finger sans_(undertale) sex shoes_on sibling_incest siblings sitting_on_bed skeleton slippers small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom soul soul_sex sweat text tongue tongue_out top_papyrus undead undertale undertale_(series) unknown_artist video_game_character video_games yaoi
2019 2boys 2d animated_skeleton bigger_male blue_blush blue_jacket blush bottom_sans brother/brother brothers clothed digital_media duo ectotongue fontcest gay glowing hood hooded_jacket humanoid incest intraspecies jacket larger_male licking male male/male male_only monster one_eye_closed orange_blush orange_tongue papyrus_(undertale) papysans partially_clothed ribs sans_(undertale) sibling_incest siblings simple_background skeleton teeth top_papyrus undead undertale undertale_(series) yaoi yellowscarf_(849741021angela)
2019 2boys 2d animated_skeleton bigger_male blue_blush blue_jacket blush bottom_sans brother/brother brothers clothed digital_media duo ectotongue fontcest gay glowing hood hooded_jacket humanoid incest intraspecies jacket larger_male licking male male/male male_only monster one_eye_closed orange_blush orange_tongue papyrus_(undertale) papysans partially_clothed ribs sans_(undertale) sibling_incest siblings simple_background skeleton teeth top_papyrus undead undertale undertale_(series) yaoi yellowscarf_(849741021angela)