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2010s 2018 alternate_universe animated_skeleton artist_name blowjob crying dream dream_sans dream_sans_(fan_character) dreamtale ectopenis ectotongue fellatio heki_(artist) incest licking licking_penis nightmare_sans nightmare_sans_(fan_character) outside penis purple_eyes purple_tongue sans sans_au sanscest skeleton star_eyes tongue under_tree undertale undertale_au yellow_eyes yellow_penis yellow_tongue

alternate_universeanimated_skeleton

1boy blue_eye blue_penis blue_tongue dark_background ectopenis ectotongue fellswap fellswap_sans glowing_penis lizheru lizherubones male male_only one_eye_closed penis sans sans_au solo solo_male tagme tongue tongue_out undertale_au

blue_eyeblue_penis

animated_skeleton bigger_penetrating bigger_penetrating_smaller ectopenis ectotongue larger_penetrating larger_penetrating_smaller male male_penetrating orange_penis orange_tongue papyrus papyrus_au sans sans_au skeleton smaller_penetrated swapfell swapfell_papyrus tagme underswap underswap_sans undertale_au

animated_skeletonbigger_penetrating

2boys animated_skeleton archonghoul blue_penis blush clothed duo ectopenis ectotongue gay hi_res licking licking_penis lightsaber_dick male male/male penis red_eyes red_tongue sans sans_au sanscest skeleton solo_focus tagme text underfell underfell_sans undertale undertale_au yaoi

animated_skeletonarchonghoul

breasts dyingsinarch ectobody ectobreasts ectopussy ectotongue error_sans_(fan_character) fan_character female glowing_cum hi_res ink_sans_(fan_character) lightsaber_dick pussy rule_63 sans sanscest skeleton solo tagme undertale undertale_au undertale_fanfiction visible_skeleton

breastsdyingsinarch

3boys alternate_universe artist_name blue_blush blue_penis blush comic comic_page comic_panel ectopenis ectotongue error_sans_(fan_character) errortale fan_character ganzooky genitals glowing_cum hi_res incest male orange_blush orange_penis papyrus papyrus_(underswap) papyrus_au penis sans sans_(underswap) sans_au sanscest sex skeleton tagme tongue underswap undertale undertale_au undertale_fanfiction yaoi

alternate_universeartist_name

alternate_universe animated_skeleton artist_signature dusttale dusttale_sans ectopenis ectotongue fan_character horrortale horrortale_sans penis sans sans_au sanscest sinner0w0 skeleton text tongue undertale undertale_au undertale_fanfiction

alternate_universeanimated_skeleton

2010s 2016 alternate_universe anal animated_skeleton artist_name bigger_penetrating bigger_penetrating_smaller clothing ectotongue english_text fellswap fellswap_papyrus fellswap_sans heat heki_(artist) horny incest larger_penetrating larger_penetrating_smaller male male_only pants_around_legs papyrus papyrus_au red_eyes sans sans_au skeleton smaller_penetrated text tongue undertale undertale_au undertale_fanfiction

alternate_universeanal

2boys alternate_universe anal animated_skeleton artist_name belt bigger_male bigger_penetrating bigger_penetrating_smaller brother_penetrating_brother collar ectopenis ectoplasm ectotongue gloves grabbing_penis incest indoors larger_male larger_penetrating larger_penetrating_smaller leash leash_pull leash_pulling male male/male male_only male_penetrated moaning nasty-fox onomatopoeia papyrus papyrus_(underfell) papyrus_au penetration penis red_eyes red_gloves red_penis red_scarf sans sans_(underfell) sans_au scarf sex skeleton smaller_male tongue tongue_out unbuckled_belt underfell underfell_papyrus underfell_sans undertale undertale_au undertale_fanfiction yaoi

alternate_universeanal

2boys 2d alternate_universe animated_skeleton artist_name blue_blush blue_tongue blush catyuffie dusttale dusttale_sans ectopenis ectotongue eye_fucking eye_socket_penetration humanoid male male_only penis penis_in_eye purple_penis sans sans_au sanscest sex skeleton solo_focus tagme tears tongue_out underswap underswap_sans undertale_(series) undertale_au undertale_fanfiction white_background yaoi

alternate_universeanimated_skeleton

1boy 2017 2d alternate_universe animated_skeleton artist_request black_sweater blue_balls blue_blush blue_dick blue_eyes blue_hoodie blue_penis blue_pupils blue_tongue blush drooling ectopenis ectotongue fangs hoodie humanoid male meta_request outertale outertale_sans penis sans sans_au sans_blush sans_eye sans_glowing_eye sans_penis skeleton slippers sweater sweating sweatpants tongue tongue_out undertale_(series) undertale_au undertale_fanfiction white_background white_socks yellow_hoodie

alternate_universeanimated_skeleton

2boys animated_skeleton ass big_dom_small_sub bigger_penetrating bigger_penetrating_smaller blue_tongue bone duo ectobody ectobutt ectopenis ectotongue flower flowey_the_flower from_behind larger_penetrating larger_penetrating_smaller male male/male male_only monster omega_flowey pants_down penis photoshop_flowey plant rape razinoats sans size_difference skeleton smaller_penetrated tentacle transparent_background undertale video_games yaoi

animated_skeletonass

1boy 2d animated_skeleton arm_support black_pants blue_blush blue_jacket blue_penis blue_tongue blush blushing_male bodily_fluids bottom_sans cute cute_male cute_penis digital_media ectotongue fangs fluids glowing_genitalia glowing_penis grey_background humanoid jacket kneel looking_at_viewer male male_only malesub monster off_shoulders open_mouth pants penis ribs sans_(undertale) seiza simple_background skeleton small_penis solid_color_background solo_male submissive submissive_male tongue tongue_out topless topless_male undead undertale undertale_(series) unknown_artist video_game_character video_games

animated_skeletonarm_support

1:1 1:1_aspect_ratio 1boy 2010s 2d animated_skeleton arm_support artist_name blue_hoodie blue_jacket blue_tongue bottomless bottomless_male digital_media ectotongue hood hooded_jacket humanoid jacket male male_focus male_masturbation male_only masturbating_with_clothes masturbation monster off_shoulder off_shoulders one_eye_closed partially_clothed ryokutya1107 sans_(undertale) simple_background sitting skeleton sock sock_on_penis socks solo_male teeth tongue tongue_out topwear topwear_only undead undertale undertale_(series) white_background

animated_skeletonarm_support

1boy 2d animated_skeleton artist_request black_background blue_blush blue_jacket blue_tongue blush bottom_sans clothed digital_media ectotongue face fluids humanoid jacket male male_focus male_only monster sans_(undertale) simple_background skeleton skull submissive tongue tongue_out undead undertale undertale_(series)

animated_skeletonartist_request

13thcatofthegate 2018 2boys 2d all_fours anal animated_skeleton 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 comic comic_page comic_panel comic_sans completely_nude completely_nude_male cum cum_on_sheets cum_while_penetrated digital_media doggy_position drooling duo ectopenis ectotongue ejaculation english_text fontcest from_behind_position genital_fluids genitals glowing_eye handjob handjob_while_penetrating humanoid incest indoors intraspecies larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster nude nude_male orange_blush orange_eye orange_penis orgasm papyrus_(undertale) papysans partially_colored penetration penetration_from_behind penis sans_(undertale) sequential sex sex_from_behind shorter_male sibling_incest siblings skeleton smaller_male smaller_penetrated speech_bubble taller_male text tongue tongue_out top_papyrus undead undertale undertale_(series) video_game_character video_games yaoi

13thcatofthegate 2018 2boys 2d animated_skeleton arms_around_another arms_around_another's_neck arms_around_neck bigger_male blue_blush blue_penis blue_tongue blush bottom_sans brother/brother brothers comic comic_page comic_panel comic_sans digital_media duo ectopenis ectotongue english_text fontcest gay handjob hands_around_neck humanoid incest indoors intraspecies larger_male male male/male male_only monster orange_blush papyrus_(undertale) papysans partially_colored penis sans_(undertale) sequential shorter_male sibling_incest siblings skeleton smaller_male soul soul_sex speech_bubble taller_male text tongue top_papyrus undead undertale undertale_(series) yaoi

animated_skeletonarms_around_another

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

animated_skeletonbigger_male

... 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

...animated_skeleton

! 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

!animated_skeleton

1:1 1:1_aspect_ratio 1boy 2016 2d alternate_version_available animated_skeleton blue_blush blush clothed clothed_male clothing digital_media disembodied_hand disembodied_hands ectotongue glowing_eye groping hands humanoid itsdunklesans male male_focus malesub monster one_eye_closed sans_(undertale) simple_background skeleton solo_focus submissive submissive_male tongue undead undertale undertale_(series) video_game_character video_games

alternate_version_availableanimated_skeleton

1:1 1:1_aspect_ratio 1boy 2016 2d alternate_version_available animated_skeleton clothed clothed_male clothing digital_media disembodied_hand disembodied_hands ectotongue glowing_eye groping hands humanoid itsdunklesans male male_focus malesub monster one_eye_closed sans_(undertale) simple_background skeleton solo_focus submissive submissive_male tongue undead undertale undertale_(series) video_game_character video_games

alternate_version_availableanimated_skeleton

1boy 2d animated_skeleton artist_request bound bound_wrists clothed digital_media ectotongue hood hood_down hooded_jacket humanoid jacket male monster sans_(undertale) simple_background skeleton source_request submissive tied_up tied_wrists tongue tongue_out undead undertale undertale_(series) video_games

animated_skeletonartist_request

<3 1boy 2d ahegao anal animated_skeleton blue_blush blue_dildo blue_tongue blush bottom_sans bottomless digital_media dildo ectotongue heart heart_eyes hooded_jacket hoodie humanoid jacket male_ahegao masturbation neetnest pleasure_face sans_(undertale) sex_toy skeleton solo spread_legs spreading tongue tongue_out undead undertale undertale_(series) white_background

2018 2boys 2d animated_skeleton artist_name begging begging_to_cum black_background blue_cum blue_penis blue_tongue blush bottom_sans brother/brother brothers clothed clothed_male clothing comic comic_page comic_panel cum digital_media dominant dominant_male domination drooling duo echoheartx ectopenis ectotongue ejaculation elegantfolly english_text fontcest fully_clothed fully_clothed_male gay gloves handjob hooded_jacket hoodie humanoid incest intraspecies jacket lying male male/male male_focus male_only maledom malesub monochrome monster on_back orange_cum orange_penis orgasm papyrus_(undertale) papysans partially_colored penis prehensile_penis sans_(undertale) semen_on_face sequential sibling_incest siblings skeleton submissive submissive_male tentacle_penis text tongue top_papyrus undead undertale undertale_(series) video_game_character video_games yaoi

animated_skeletonartist_name

... 2018 2boys 2d animated_skeleton artist_name black_background blue_tongue blush bottom_sans brother/brother brothers clothed clothed_male clothing comic comic_page comic_panel cum cum_on_face cumshot digital_media 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 humanoid incest intraspecies jacket licking_penis male male/male male_focus male_only maledom malesub monochrome monster oral orange_cum orange_penis orange_tongue orgasm papyrus_(undertale) papysans partially_colored penis prehensile_penis sans_(undertale) semen_on_face sequential sibling_incest siblings skeleton submissive submissive_male sweat tentacle_penis text tongue top_papyrus undead undertale undertale_(series) video_game_character video_games yaoi

...animated_skeleton

2018 2boys 2d 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 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 humanoid incest intraspecies jacket licking_penis male male/male male_focus male_only maledom malesub monochrome monster oral orange_penis orange_tongue papyrus_(undertale) papysans partially_colored penis prehensile_penis profanity sans_(undertale) sequential sibling_incest siblings sitting skeleton submissive submissive_male tentacle_penis text tongue top_papyrus undead undertale undertale_(series) video_game_character video_games yaoi

animated_skeletonartist_name

2018 2boys 2d animated_skeleton artist_name black_background blue_tongue blush bottom_sans brother/brother brothers clothed clothed_male clothing comic comic_page comic_panel digital_media 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 humanoid incest intraspecies jacket licking_penis male male/male male_focus male_only maledom malesub monochrome monster oral orange_penis orange_tongue papyrus_(undertale) papysans partially_colored penis prehensile_penis profanity revision sans_(undertale) sequential sibling_incest siblings sitting skeleton submissive submissive_male tentacle_penis text tongue top_papyrus undead undertale undertale_(series) video_game_character video_games yaoi

animated_skeletonartist_name

2022 2boys 2d animated_skeleton blue_jacket blush brothers clothed digital_media duo ectotongue fontcest gay height_difference hood hooded_jacket humanoid incest intraspecies jacket kissing male male/male male_only monster monster_boy papyrus_(undertale) papysans red_eyes s2ames2 saliva saliva_trail sans_(undertale) scarf sibling_incest siblings skeleton tongue tongue_out undead undertale undertale_(series) upper_body yaoi

animated_skeletonblue_jacket

2022 2boys 2d animated_skeleton arms_around_another arms_around_another's_neck arms_around_neck arms_around_waist blue_blush blue_jacket blue_tongue blush brothers closed_eyes clothed digital_media duo ectotongue fontcest gay height_difference hood hooded_jacket hugging humanoid incest intraspecies jacket kissing licking_tongue making_out male male/male male_only monster monster_boy papyrus_(undertale) papysans red_tongue s2ames2 sans_(undertale) scarf sibling_incest siblings skeleton tongue undead undertale undertale_(series) yaoi

animated_skeletonarms_around_another

2018 2boys 2d 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_penetrating_brother brothers chain chains clothed crying crying_with_eyes_open digital_media dominant dominant_male domination duo ectopenis ectoplasm ectotongue fontcest ganzooky gay genitals gradient_background hooded_jacket hoodie humanoid 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-consensual nonconsensual open_mouth orange_background orange_penis papyrus_(undertale) papysans penetration penis rape red_gloves red_scarf sans_(undertale) scarf 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 undead undertale undertale_(series) video_game_character video_games yandere yaoi

analanimated_skeleton

1cuntboy 2d animated_skeleton blue_blush blush bottom_sans bottomless cuntboy cuntboy_focus cuntboy_only digital_media ectobody ectopussy ectotongue heart humanoid legwear lineart lying monster mr-lettuce-sinner on_back one_eye_closed partially_colored pussy sans_(undertale) skeleton spread_legs spread_pussy stockings thighhighs tongue tongue_out undead undertale undertale_(series) white_background

animated_skeletonblue_blush

1:1 1:1_aspect_ratio 1boy 2023 2d ahegao animated_skeleton blue_blush blue_eye blue_tongue blush bottom_sans clothed clothing cum_on_face cum_on_tongue digital_media ectotongue fluids humanoid lyracrimson male male_ahegao male_only monster pink_background sans_(undertale) semen_on_face semen_on_tongue simple_background skeleton solo solo_male star star_(symbol) submissive text tongue tongue_out tongue_piercing uke_sans undead undertale undertale_(series) upper_body video_games

ahegaoanimated_skeleton

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

animated_skeletonbed

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

animated_skeletonbed

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

animated_skeletonblue_blush

2016 2boys 2d 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_penetrating_brother brothers clothed clothed_sex digital_media drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_focus male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans_(undertale) 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 undead undertale undertale_(series) video_game_character video_games visible_breath watermark x-ray yaoi

alternate_version_availableanal

2016 2boys 2d 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_penetrating_brother brothers clothed clothed_sex digital_media drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_focus male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans_(undertale) 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 undead undertale undertale_(series) video_game_character video_games visible_breath watermark yaoi

alternate_version_availableanal

2016 2boys 2d 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_penetrating_brother brothers clothed clothed_sex digital_media drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_focus male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans_(undertale) 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 tongue top_papyrus undead undertale undertale_(series) unseen_character video_game_character video_games visible_breath watermark x-ray yaoi

alternate_version_availableanal

2016 2boys 2d 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_penetrating_brother brothers clothed clothed_sex digital_media drooling duo ectotongue english_text fangs fontcest from_behind from_behind_position gay gloves heart-shaped_pupils humanoid incest intraspecies jacket laddinger larger_male larger_penetrating larger_penetrating_smaller male male/male male_focus male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy onomatopoeia orange_blush orange_tongue outside papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes public_sex red_gloves sans_(undertale) 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 tongue top_papyrus undead undertale undertale_(series) unseen_character video_game_character video_games visible_breath watermark yaoi

alternate_version_availableanal

2015 2boys 2d animated_skeleton artist_logo artist_name blue_eye blue_tongue clothed/nude clothed_male digital_media dominant dominant_male duo ectotongue elemental_creature elemental_humanoid english_text fellatio fire_elemental glowing glowing_eye grillby grillsans humanoid interspecies leash leash_pull licking_penis male male/male male_only maledom malesub monster monster_boy mouth_forced_open mouth_gag multiple_tongues nude nude_male orange_body orange_penis penis penis_in_front_of_face sans_(undertale) sitting_on_another skeleton straddling submissive submissive_male talking_to_another talking_to_partner text thesinshrine third-party_source tumblr_username undead undertale undertale_(series) video_games yaoi

animated_skeletonartist_logo

2016 2boys 2d ahegao animated_skeleton blue_blush blue_jacket blue_tongue blush brothers clothed crossed_eyes digital_media drooling duo ectotongue humanoid jacket ketchup ketchup_bottle looking_at_another male male_only object_on_head papyrus_(undertale) pleasure_face sans_(undertale) siblings sinnia_(artist) skeleton suggestive sweat tongue undead undertale undertale_(series) upper_body video_games

ahegaoanimated_skeleton

2015 2boys 2d animated_skeleton anonymous anonymous_male artist_name blue_background blue_eye blue_tongue bottom_sans clothed cum cum_on_face cum_on_tongue digital_media ectotongue faceless_male fangs fellatio genitals glowing_eye humanoid jacket licking licking_penis male male/male monster multiple_views noxiousaberration oral penis sans_(undertale) simple_background skeleton solo_focus submissive submissive_male sweat third-party_source tongue undead undertale undertale_(series) unseen_male_face video_games yaoi

animated_skeletonanonymous

2015 2boys 2d animated_skeleton anonymous anonymous_male artist_name bad_id bad_tumblr_id blue_background blue_eye blue_tongue bottom_sans clothed cum cum_on_face cum_on_tongue digital_media ectotongue faceless_male fellatio gay genitals glowing_eye humanoid inactive_account jacket licking licking_penis male male/male monster multiple_views noxiousaberration oral penis sans_(undertale) sex simple_background skeleton solo solo_focus submissive submissive_male sweat tongue undead undertale undertale_(series) unseen_male_face upper_body video_game_character video_games yaoi

animated_skeletonanonymous

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