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blue hoodie

1boy 1cuntboy 2021 2d abosinsin animated_skeleton ass_spanking bad_id bad_twitter_id blue_blush blue_eyes blue_hoodie blue_jacket blue_tongue blush bodily_fluids bottom_sans bottomless brother/brother brothers butt_spanking cuntboy cuntboy_focus cuntboysub digital_media dominant dominant_male duo ectoplasm ectopussy english_text fluids fontcest gloves grabbing_sheets gripping_sheets hand heart-shaped_pupils heart_eyes hooded_jacket hoodie humanoid inactive_account incest intraspecies jacket kneeling looking_back male maledom monster papyrus_(undertale) papysans pink_socks punishment pussy red_gloves sans_(undertale) sibling_incest siblings skeleton socks solo_focus spank_marks spanking spanking_ass spanking_butt submissive submissive_cuntboy sweat text top_papyrus twitter_username undead undertale undertale_(series) unseen_male unseen_male_face video_game_character video_games visible_breath white_background yaoi
1boy 1cuntboy 2021 2d abosinsin animated_skeleton ass_spanking bad_id bad_twitter_id blue_blush blue_eyes blue_hoodie blue_jacket blue_tongue blush bodily_fluids bottom_sans bottomless brother/brother brothers butt_spanking cuntboy cuntboy_focus cuntboysub digital_media dominant dominant_male duo ectoplasm ectopussy english_text fluids fontcest gloves grabbing_sheets gripping_sheets hand heart-shaped_pupils heart_eyes hooded_jacket hoodie humanoid inactive_account incest intraspecies jacket kneeling looking_back male maledom monster papyrus_(undertale) papysans pink_socks punishment pussy red_gloves sans_(undertale) sibling_incest siblings skeleton socks solo_focus spank_marks spanking spanking_ass spanking_butt submissive submissive_cuntboy sweat text top_papyrus twitter_username undead undertale undertale_(series) unseen_male unseen_male_face video_game_character video_games visible_breath white_background yaoi
>:o 2021 2d abosinsin anger_vein angry animated_skeleton apron bad_id bad_twitter_id big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blue_hoodie blue_jacket blue_tongue blush bottom_sans brothers cussing digital_media duo english_text fontcest gloves grabbing_another's_chin grabbing_face height_difference hooded_jacket hoodie humanoid implied_incest inactive_account indoors jacket larger_male male monster orange_apron papyrus_(undertale) papysans profanity red_gloves red_sweater sans_(undertale) siblings skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom swearing sweat sweater text top_papyrus twitter_username undead undertale undertale_(series) video_game_character video_games yaoi
>:o 2021 2d abosinsin anger_vein angry animated_skeleton apron bad_id bad_twitter_id big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blue_hoodie blue_jacket blue_tongue blush bottom_sans brothers cussing digital_media duo english_text fontcest gloves grabbing_another's_chin grabbing_face height_difference hooded_jacket hoodie humanoid implied_incest inactive_account indoors jacket larger_male male monster orange_apron papyrus_(undertale) papysans profanity red_gloves red_sweater sans_(undertale) siblings skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom swearing sweat sweater text top_papyrus twitter_username undead undertale undertale_(series) video_game_character video_games yaoi
1boy 2016 2d alternate_version_available animated_skeleton blue_hoodie blue_jacket blue_penis bottom_sans bottomless bottomless_male cussing digital_media ectopenis genitals gradient_background hood hooded_jacket jacket male male_only malesub monster monster_boy penis pink_slippers profanity purple_tentacles sans_(undertale) simple_background skeleton slippers solo solo_male submissive submissive_male teeth tentacle tentacle_on_male tentacles tentacles_on_male text tumblr_username twilightsuccubus undead undertale undertale_(series) variant_set video_game_character video_games
1boy 2016 2d alternate_version_available animated_skeleton blue_hoodie blue_jacket blue_penis bottom_sans bottomless bottomless_male cussing digital_media ectopenis genitals gradient_background hood hooded_jacket jacket male male_only malesub monster monster_boy penis pink_slippers profanity purple_tentacles sans_(undertale) simple_background skeleton slippers solo solo_male submissive submissive_male teeth tentacle tentacle_on_male tentacles tentacles_on_male text tumblr_username twilightsuccubus undead undertale undertale_(series) variant_set video_game_character video_games
1boy 2016 2d alternate_version_available animated_skeleton blue_hoodie blue_jacket bottom_sans bottomless bottomless_male digital_media gradient_background hood hooded_jacket jacket male male_focus male_only malesub monster monster_boy pink_slippers profanity purple_tentacles sans_(undertale) simple_background skeleton slippers solo solo_male submissive submissive_male teeth tentacle tentacle_on_male tentacles tentacles_on_male text tumblr_username twilightsuccubus undead undertale undertale_(series) variant_set video_game_character video_games
1boy 2016 2d alternate_version_available animated_skeleton blue_hoodie blue_jacket bottom_sans bottomless bottomless_male digital_media gradient_background hood hooded_jacket jacket male male_focus male_only malesub monster monster_boy pink_slippers profanity purple_tentacles sans_(undertale) simple_background skeleton slippers solo solo_male submissive submissive_male teeth tentacle tentacle_on_male tentacles tentacles_on_male text tumblr_username twilightsuccubus undead undertale undertale_(series) variant_set video_game_character video_games
2010s 2016 2boys 2d 2d_(artwork) animated_skeleton bigger_male blue_hoodie blue_jacket blue_penis boots brothers closed_eyes clothed clothed_male clothing drooling duo ectopenis facing_another fontcest gloves grabbing_clothing grabbing_own_penis grabbing_penis hand_on_another's_head heart high_heel_boots hoodie incest intimate jacket ladybumtickler larger_male male male/male male_only monster no_sex papyrus papyrus_(undertale) papysans penis penis_grab penis_out red_boots red_gloves red_high_heel_boots sans sans_(undertale) sitting sitting_on_another sitting_on_lap size_difference skeleton smaller_male smiling smiling_at_another smiling_at_partner sniggysmut third-party_source traditional_media_(artwork) undead undertale undertale_(series) video_game_character video_games white_background wholesome yaoi
2010s 2016 2boys 2d 2d_(artwork) animated_skeleton bigger_male blue_hoodie blue_jacket blue_penis boots brothers closed_eyes clothed clothed_male clothing drooling duo ectopenis facing_another fontcest gloves grabbing_clothing grabbing_own_penis grabbing_penis hand_on_another's_head heart high_heel_boots hoodie incest intimate jacket ladybumtickler larger_male male male/male male_only monster no_sex papyrus papyrus_(undertale) papysans penis penis_grab penis_out red_boots red_gloves red_high_heel_boots sans sans_(undertale) sitting sitting_on_another sitting_on_lap size_difference skeleton smaller_male smiling smiling_at_another smiling_at_partner sniggysmut third-party_source traditional_media_(artwork) undead undertale undertale_(series) video_game_character video_games white_background wholesome yaoi
1boy 2010s 2016 2d 2d_(artwork) animated_skeleton blue_cum blue_hoodie blue_jacket blue_penis clothed cum cumshot digital_media_(artwork) ectopenis grabbing_leg grabbing_penis hand handjob hooded_jacket hoodie jacket ladybumtickler leg_grab male monster one_eye_closed penis sans sans_(undertale) sigh skeleton sniggysmut solo_focus solo_male undead undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2016 2d 2d_(artwork) animated_skeleton blue_cum blue_hoodie blue_jacket blue_penis clothed cum cumshot digital_media_(artwork) ectopenis grabbing_leg grabbing_penis hand handjob hooded_jacket hoodie jacket ladybumtickler leg_grab male monster one_eye_closed penis sans sans_(undertale) sigh skeleton sniggysmut solo_focus solo_male undead undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2016 2d 2d_(artwork) animated_skeleton black_and_white blue_hoodie blue_jacket clothed crossdressing digital_media_(artwork) ectopenis ectotongue erection erection_under_clothes erection_under_skirt hooded_jacket hoodie jacket ladybumtickler line_art lineart male male_only monster panties panties_around_ankles penis pillow sans sans_(undertale) school_uniform schoolgirl_uniform skeleton sniggysmut socks solo solo_male third-party_source tongue tongue_out tumblr_username undead undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2016 2d 2d_(artwork) animated_skeleton black_and_white blue_hoodie blue_jacket clothed crossdressing digital_media_(artwork) ectopenis ectotongue erection erection_under_clothes erection_under_skirt hooded_jacket hoodie jacket ladybumtickler line_art lineart male male_only monster panties panties_around_ankles penis pillow sans sans_(undertale) school_uniform schoolgirl_uniform skeleton sniggysmut socks solo solo_male third-party_source tongue tongue_out tumblr_username undead undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2016 2d 2d_(artwork) animated_skeleton artist_name black_and_white blue_hoodie blue_jacket clothed cum cum_on_clothes cum_on_clothing cum_on_self digital_media_(artwork) drooling ectopenis hand_behind_head hooded_jacket hoodie jacket ksuriuri ladybumtickler line_art lineart male male_masturbation male_only masturbation monster one_eye_closed penile_masturbation penis sans sans_(undertale) skeleton sniggysmut solo solo_male third-party_source undead undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2016 2d 2d_(artwork) animated_skeleton artist_name black_and_white blue_hoodie blue_jacket clothed cum cum_on_clothes cum_on_clothing cum_on_self digital_media_(artwork) drooling ectopenis hand_behind_head hooded_jacket hoodie jacket ksuriuri ladybumtickler line_art lineart male male_masturbation male_only masturbation monster one_eye_closed penile_masturbation penis sans sans_(undertale) skeleton sniggysmut solo solo_male third-party_source undead undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2015 2d 2d_(artwork) ahegao animated_skeleton artist_name blue_hoodie blue_jacket blue_penis clothed cum cumshot ectopenis ejaculation genital_fluids genitals hooded_jacket hoodie jacket ladybumtickler looking_pleasured male male_ahegao male_masturbation male_only masturbation monster monster_boy penile penis sans sans_(undertale) skeleton sniggysmut solo_male tongue tongue_out undead undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2015 2d 2d_(artwork) ahegao animated_skeleton artist_name blue_hoodie blue_jacket blue_penis clothed cum cumshot ectopenis ejaculation genital_fluids genitals hooded_jacket hoodie jacket ladybumtickler looking_pleasured male male_ahegao male_masturbation male_only masturbation monster monster_boy penile penis sans sans_(undertale) skeleton sniggysmut solo_male tongue tongue_out undead undertale undertale_(series) video_game_character video_games white_background
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton blue_blush blue_eyes blue_hoodie blue_jacket blue_tongue blush bottom_sans clothed cussing digital_media_(artwork) drooling eye_fucking eye_penetration heart-shaped_pupils heart_eyes hooded_jacket hoodie jacket male male_focus male_only malesub monster penis_in_eye profanity sans sans_(undertale) skeleton skull_fucking solo_focus submissive submissive_male swearing text tongue tongue_out uke_sans undead undertale undertale_(series) unknown_artist unseen_male unseen_male_face upper_body video_game_character video_games visible_breath white_background yaoi
2010s 2018 2boys 2d 2d_(artwork) animated_skeleton blue_blush blue_eyes blue_hoodie blue_jacket blue_tongue blush bottom_sans clothed cussing digital_media_(artwork) drooling eye_fucking eye_penetration heart-shaped_pupils heart_eyes hooded_jacket hoodie jacket male male_focus male_only malesub monster penis_in_eye profanity sans sans_(undertale) skeleton skull_fucking solo_focus submissive submissive_male swearing text tongue tongue_out uke_sans undead undertale undertale_(series) unknown_artist unseen_male unseen_male_face upper_body video_game_character video_games visible_breath white_background yaoi
2022 2boys 2d anal animated_skeleton bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_eyes blue_hoodie blue_jacket blue_penis blush bottom_sans brother/brother brother_penetrating_brother brothers carne_392f carrying carrying_partner clothed dark_background digital_media duo ectopenis ectoplasm fellatio fellatio_pov fontcest glowing glowing_genitalia glowing_penis grabbing_legs hooded_jacket hoodie incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy multiple_views orange_blush orange_penis papyrus_(undertale) papysans partially_clothed sans_(undertale) shirt_lift shirt_up sibling_incest siblings simple_background sitting skeleton smaller_male smaller_penetrated top_papyrus undead undertale undertale_(series) yaoi
2022 2boys 2d anal animated_skeleton bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_eyes blue_hoodie blue_jacket blue_penis blush bottom_sans brother/brother brother_penetrating_brother brothers carne_392f carrying carrying_partner clothed dark_background digital_media duo ectopenis ectoplasm fellatio fellatio_pov fontcest glowing glowing_genitalia glowing_penis grabbing_legs hooded_jacket hoodie incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy multiple_views orange_blush orange_penis papyrus_(undertale) papysans partially_clothed sans_(undertale) shirt_lift shirt_up sibling_incest siblings simple_background sitting skeleton smaller_male smaller_penetrated top_papyrus undead undertale undertale_(series) yaoi
1:1 1:1_aspect_ratio 2010s 2017 animated_skeleton blue_blush blue_hoodie blue_jacket blush clothed hooded_jacket hoodie implied_masturbation jacket looking_down monster peng2_(artist) peng2_undertale_(artist) sans sans_(undertale) skeleton solo sweat undead undertale undertale_(series) upper_body visible_breath white_background
1:1 1:1_aspect_ratio 2010s 2017 animated_skeleton blue_blush blue_hoodie blue_jacket blush clothed hooded_jacket hoodie implied_masturbation jacket looking_down monster peng2_(artist) peng2_undertale_(artist) sans sans_(undertale) skeleton solo sweat undead undertale undertale_(series) upper_body visible_breath white_background
2010s 2019 animated_skeleton anminshing artist_name blue_blush blue_hoodie blue_jacket blush bottom_sans bottomless censor_bar censored_penis censored_pussy clitoris closed_eyes cum cum_while_penetrated ectopenis ectoplasm ectopussy ejaculating_while_penetrated ejaculation ejaculation_while_penetrated hands_behind_head hooded_jacket hoodie intersex jacket japanese_text legs_apart legs_spread monster penetration penis pussy sans sans_(undertale) sex shing-kanakugi skeleton socks socks_on solo_focus spread_legs text uke_sans undead undertale undertale_(series) white_background
2010s 2019 animated_skeleton anminshing artist_name blue_blush blue_hoodie blue_jacket blush bottom_sans bottomless censor_bar censored_penis censored_pussy clitoris closed_eyes cum cum_while_penetrated ectopenis ectoplasm ectopussy ejaculating_while_penetrated ejaculation ejaculation_while_penetrated hands_behind_head hooded_jacket hoodie intersex jacket japanese_text legs_apart legs_spread monster penetration penis pussy sans sans_(undertale) sex shing-kanakugi skeleton socks socks_on solo_focus spread_legs text uke_sans undead undertale undertale_(series) white_background
2010s 2019 animated_skeleton anminshing artist_name blue_blush blue_hoodie blue_jacket blush bottom_sans bottomless censor_bar censored_penis censored_pussy clitoris ectopenis ectoplasm ectopussy hands_behind_head hooded_jacket hoodie intersex jacket japanese_text legs_apart legs_spread looking_down monster penetration penis pussy sans sans_(undertale) sex shing-kanakugi skeleton socks socks_on solo_focus spread_legs text uke_sans undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex white_background
2010s 2019 animated_skeleton anminshing artist_name blue_blush blue_hoodie blue_jacket blush bottom_sans bottomless censor_bar censored_penis censored_pussy clitoris ectopenis ectoplasm ectopussy hands_behind_head hooded_jacket hoodie intersex jacket japanese_text legs_apart legs_spread looking_down monster penetration penis pussy sans sans_(undertale) sex shing-kanakugi skeleton socks socks_on solo_focus spread_legs text uke_sans undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex white_background
animated_skeleton artist_request blue_background blue_blush blue_hoodie blue_jacket blue_tongue blush bottom_sans clothed gaster_blaster hooded_jacket hoodie jacket larger_penetrating larger_penetrating_smaller licking long_tongue male male_penetrated monster penetration saliva sans sans_(undertale) simple_background size_difference skeleton smaller_penetrated solid_color_background solo_focus submissive submissive_male tongue tongue_fuck tongue_fucking tongue_out tongue_penetration uke_sans undead undertale undertale_(series) wet
animated_skeleton artist_request blue_background blue_blush blue_hoodie blue_jacket blue_tongue blush bottom_sans clothed gaster_blaster hooded_jacket hoodie jacket larger_penetrating larger_penetrating_smaller licking long_tongue male male_penetrated monster penetration saliva sans sans_(undertale) simple_background size_difference skeleton smaller_penetrated solid_color_background solo_focus submissive submissive_male tongue tongue_fuck tongue_fucking tongue_out tongue_penetration uke_sans undead undertale undertale_(series) wet
... 2boys 2d 2d_(artwork) ?!? animated_skeleton blue_hoodie blue_jacket bottom_sans comic cum cum_in_eye digital_media_(artwork) english_text eye_fucking eye_penetration faceless_male hooded_jacket hoodie jacket male male_only monster penis pun sans sans_(undertale) skeleton skull_fucking solo_focus sweat text uke_sans undead undertale undertale_(series) unknown_artist unseen_male upper_body veiny_penis video_game_character video_games yaoi
... 2boys 2d 2d_(artwork) ?!? animated_skeleton blue_hoodie blue_jacket bottom_sans comic cum cum_in_eye digital_media_(artwork) english_text eye_fucking eye_penetration faceless_male hooded_jacket hoodie jacket male male_only monster penis pun sans sans_(undertale) skeleton skull_fucking solo_focus sweat text uke_sans undead undertale undertale_(series) unknown_artist unseen_male upper_body veiny_penis video_game_character video_games yaoi
1boy 2d 2d_(artwork) animated_skeleton artist_request blue_blush blue_eyes blue_hoodie blue_jacket blue_penis blush chubby chubby_male clothed digital_media_(artwork) drooling ectopenis erection genital_fluids genitals glowing glowing_penis heart-shaped_pupils hooded_jacket hoodie jacket legs_apart looking_at_genitalia looking_at_own_penis looking_at_penis looking_down looking_pleasured male male_only monster monster_boy one_eye_closed penis penis_out penis_through_clothing pink_slippers pleasure_face precum precum_drip sans sans_(undertale) simple_background sitting skeleton slippers solid_color_background solo_male spread_legs sweat undead undertale undertale_(series) video_game_character video_games white_background
1boy 2d 2d_(artwork) animated_skeleton artist_request blue_blush blue_eyes blue_hoodie blue_jacket blue_penis blush chubby chubby_male clothed digital_media_(artwork) drooling ectopenis erection genital_fluids genitals glowing glowing_penis heart-shaped_pupils hooded_jacket hoodie jacket legs_apart looking_at_genitalia looking_at_own_penis looking_at_penis looking_down looking_pleasured male male_only monster monster_boy one_eye_closed penis penis_out penis_through_clothing pink_slippers pleasure_face precum precum_drip sans sans_(undertale) simple_background sitting skeleton slippers solid_color_background solo_male spread_legs sweat undead undertale undertale_(series) video_game_character video_games white_background
2010s 2017 2boys animated_skeleton blue_blush blue_hoodie blue_jacket blush bottom_sans brother brother/brother brother_and_brother brothers clothed duo fingers_interlocked fontcest hooded_jacket hoodie incest interlocked_fingers intertwined_fingers jacket kissing male male_only mintea_007 monster off_shoulder off_shoulders papyrus papyrus_(undertale) papysans sans sans_(undertale) seme_papyrus skeleton top_papyrus uke_sans undead undertale undertale_(series) unseen_male_face upper_body yaoi
2010s 2017 2boys animated_skeleton blue_blush blue_hoodie blue_jacket blush bottom_sans brother brother/brother brother_and_brother brothers clothed duo fingers_interlocked fontcest hooded_jacket hoodie incest interlocked_fingers intertwined_fingers jacket kissing male male_only mintea_007 monster off_shoulder off_shoulders papyrus papyrus_(undertale) papysans sans sans_(undertale) seme_papyrus skeleton top_papyrus uke_sans undead undertale undertale_(series) unseen_male_face upper_body yaoi
1boy 2010s 2015 2d 2d_(artwork) animated_skeleton blue_blush blue_hoodie blue_jacket blue_penis blush clothed digital_media_(artwork) drooling ectopenis hooded_jacket hoodie jacket male male_only monster one_eye_closed penis penis_out sans sans_(undertale) skeleton solo solo_male third-party_source undead undertale undertale_(series) unknown_artist video_games white_background
1boy 2010s 2015 2d 2d_(artwork) animated_skeleton blue_blush blue_hoodie blue_jacket blue_penis blush clothed digital_media_(artwork) drooling ectopenis hooded_jacket hoodie jacket male male_only monster one_eye_closed penis penis_out sans sans_(undertale) skeleton solo solo_male third-party_source undead undertale undertale_(series) unknown_artist video_games white_background
1boy 2d 2d_(artwork) animated_skeleton balls bed blue_blush blue_hoodie blue_jacket blue_penis blue_tongue blush bone chaotic-time clothed clothing digital_media_(artwork) ectopenis erection genitals glowing hooded_jacket hoodie humanoid_penis jacket legs_apart lying_on_bed male male_only monster monster_boy on_bed penis penis_out pillow saliva sans sans_(undertale) shirt_pulled_up shirt_up skeleton solo_male spread_legs submissive testicles tongue tongue_out undead undertale undertale_(series) video_game_character video_games
1boy 2d 2d_(artwork) animated_skeleton balls bed blue_blush blue_hoodie blue_jacket blue_penis blue_tongue blush bone chaotic-time clothed clothing digital_media_(artwork) ectopenis erection genitals glowing hooded_jacket hoodie humanoid_penis jacket legs_apart lying_on_bed male male_only monster monster_boy on_bed penis penis_out pillow saliva sans sans_(undertale) shirt_pulled_up shirt_up skeleton solo_male spread_legs submissive testicles tongue tongue_out undead undertale undertale_(series) video_game_character video_games
1boy 2d 2d_(artwork) animated_skeleton blue_blush blue_eye blue_eyes blue_hoodie blue_jacket blue_penis blue_tongue blush blushing clothed clothed_male clothing digital_media_(artwork) ectopenis fully_clothed grabbing_own_penis hooded_jacket hoodie jacket looking_at_viewer male male_masturbation male_only masturbation monster one_eye_closed penile_masturbation penis penis_out sans sans_(undertale) serfuzzy skeleton solo solo_male third-party_source transparent_background undead undertale undertale_(series) video_games
1boy 2d 2d_(artwork) animated_skeleton blue_blush blue_eye blue_eyes blue_hoodie blue_jacket blue_penis blue_tongue blush blushing clothed clothed_male clothing digital_media_(artwork) ectopenis fully_clothed grabbing_own_penis hooded_jacket hoodie jacket looking_at_viewer male male_masturbation male_only masturbation monster one_eye_closed penile_masturbation penis penis_out sans sans_(undertale) serfuzzy skeleton solo solo_male third-party_source transparent_background undead undertale undertale_(series) video_games
1boy 2010s 2015 2d 2d_(artwork) animated_skeleton blue_blush blue_eye blue_hoodie blue_jacket blue_penis blush bottom_sans clothed clothed_male clothing digital_media_(artwork) ectopenis floor fully_clothed genitals glowing glowing_eye hooded_jacket hoodie humanoid jacket looking_at_viewer male male_only monster monster_boy nervous on_floor penis plus5pencil sans sans_(undertale) scared scared_expression skeleton slippers solo_male sweat torn_clothes torn_clothing torn_pants tumblr uke_sans undead undertale undertale_(series) video_game_character video_games
1boy 2010s 2015 2d 2d_(artwork) animated_skeleton blue_blush blue_eye blue_hoodie blue_jacket blue_penis blush bottom_sans clothed clothed_male clothing digital_media_(artwork) ectopenis floor fully_clothed genitals glowing glowing_eye hooded_jacket hoodie humanoid jacket looking_at_viewer male male_only monster monster_boy nervous on_floor penis plus5pencil sans sans_(undertale) scared scared_expression skeleton slippers solo_male sweat torn_clothes torn_clothing torn_pants tumblr uke_sans undead undertale undertale_(series) video_game_character video_games
1boy 2020s 2021 2d 2d_(artwork) ahegao animated_skeleton blue_belly blue_blush blue_body blue_hoodie blue_jacket blue_penis blue_testicles blue_tongue blush blushing bottom_sans chubby chubby_male clothed crying cum cum_on_face cumming digital_media_(artwork) ectobody ectopenis gripping_sheets hole_in_pants hooded_jacket hoodie jacket male male_ahegao male_only monster on_bed one_eye_closed penis sans sans_(undertale) shirt shorts skeleton solo solo_male sweating tears testicles tongue_out trembling uke_sans undead undertale undertale_(series) unknown_artist veiny_penis video_games
1boy 2020s 2021 2d 2d_(artwork) ahegao animated_skeleton blue_belly blue_blush blue_body blue_hoodie blue_jacket blue_penis blue_testicles blue_tongue blush blushing bottom_sans chubby chubby_male clothed crying cum cum_on_face cumming digital_media_(artwork) ectobody ectopenis gripping_sheets hole_in_pants hooded_jacket hoodie jacket male male_ahegao male_only monster on_bed one_eye_closed penis sans sans_(undertale) shirt shorts skeleton solo solo_male sweating tears testicles tongue_out trembling uke_sans undead undertale undertale_(series) unknown_artist veiny_penis video_games
1boy 2010s 2015 2d 2d_(artwork) animated_skeleton artist_name blue_blush blue_eyes blue_hoodie blue_jacket blue_penis blush burger clothed clothed_male clothing digital_media_(artwork) eating eating_food ectopenis food french_fries fries fully_clothed genital_fluids genitals grabbing_own_penis hamburger heart-shaped_pupils heart_eyes hooded_jacket hoodie humanoid jacket ketchup ketchup_bottle male male_masturbation male_only masturbation monster monster_boy penile penile_masturbation penis penis_out precum red_background sans sans_(undertale) simple_background skeleton slimesurgeon solo_male undead undertale undertale_(series) video_game_character video_games
1boy 2010s 2015 2d 2d_(artwork) animated_skeleton artist_name blue_blush blue_eyes blue_hoodie blue_jacket blue_penis blush burger clothed clothed_male clothing digital_media_(artwork) eating eating_food ectopenis food french_fries fries fully_clothed genital_fluids genitals grabbing_own_penis hamburger heart-shaped_pupils heart_eyes hooded_jacket hoodie humanoid jacket ketchup ketchup_bottle male male_masturbation male_only masturbation monster monster_boy penile penile_masturbation penis penis_out precum red_background sans sans_(undertale) simple_background skeleton slimesurgeon solo_male undead undertale undertale_(series) video_game_character video_games
1boy 2d 2d_(artwork) animated_skeleton artist_request blue_blush blue_eye blue_hoodie blue_jacket blue_penis blush bottom_sans clothed clothed_male clothing digital_media_(artwork) ectopenis glowing glowing_eye hooded_jacket hoodie jacket male male_only monster monster_boy penis penis_out sans sans_(undertale) simple_background sitting skeleton solid_color_background solo_male spread_legs sweat uke_sans undead undertale undertale_(series) video_game_character video_games
1boy 2d 2d_(artwork) animated_skeleton artist_request blue_blush blue_eye blue_hoodie blue_jacket blue_penis blush bottom_sans clothed clothed_male clothing digital_media_(artwork) ectopenis glowing glowing_eye hooded_jacket hoodie jacket male male_only monster monster_boy penis penis_out sans sans_(undertale) simple_background sitting skeleton solid_color_background solo_male spread_legs sweat uke_sans undead undertale undertale_(series) video_game_character video_games
1girl 2023 2d animated_skeleton areola areolae big_breasts blue_areola blue_blush blue_body blue_breasts blue_hoodie blue_jacket blue_nipples blush breasts digital_media ectobody ectobreasts exposed_breasts female female_only female_sans genderswap genderswap_(mtf) hood hooded_jacket humanoid jacket jepr0d monster nipples portrait sans_(undertale) shirt_pulled_up shirt_up simple_background skeleton solo solo_female sweat undead undertale undertale_(series) upper_body video_games
1girl 2023 2d animated_skeleton areola areolae big_breasts blue_areola blue_blush blue_body blue_breasts blue_hoodie blue_jacket blue_nipples blush breasts digital_media ectobody ectobreasts exposed_breasts female female_only female_sans genderswap genderswap_(mtf) hood hooded_jacket humanoid jacket jepr0d monster nipples portrait sans_(undertale) shirt_pulled_up shirt_up simple_background skeleton solo solo_female sweat undead undertale undertale_(series) upper_body video_games
2022 2boys 2d anal animated_skeleton blue_hoodie boots bottom_sans bottomless brother/brother brother_penetrating_brother brothers couch couch_sex digital_media door duo floor fontcest furniture gay heart hood hooded_jacket incest indoors interlocked_fingers intertwined_fingers jacket jepr0d living_room male male/male male_penetrating missionary_position monster monster_boy on_couch papyrus_(undertale) papysans penetration plate red_footwear rock sans_(undertale) sex sibling_incest siblings skeleton table top_papyrus undead undertale undertale_(series) unseen_male_face video_games window yaoi
2022 2boys 2d anal animated_skeleton blue_hoodie boots bottom_sans bottomless brother/brother brother_penetrating_brother brothers couch couch_sex digital_media door duo floor fontcest furniture gay heart hood hooded_jacket incest indoors interlocked_fingers intertwined_fingers jacket jepr0d living_room male male/male male_penetrating missionary_position monster monster_boy on_couch papyrus_(undertale) papysans penetration plate red_footwear rock sans_(undertale) sex sibling_incest siblings skeleton table top_papyrus undead undertale undertale_(series) unseen_male_face video_games window yaoi
2010s 2016 2boys animated_skeleton blue_blush blue_hoodie blue_jacket blush bottom_sans bottomless brother/brother brothers duo fontcest gay gloves grabbing_leg hooded_jacket hoodie imminent_sex incest jacket leg_grab male male/male monster orange_blush papyrus papyrus_(undertale) papysans red_gloves red_scarf sans sans_(undertale) scarf seme_papyrus skeleton top_papyrus topless topless_male typhadog uke_sans undead undertale undertale_(series) yaoi
2010s 2016 2boys animated_skeleton blue_blush blue_hoodie blue_jacket blush bottom_sans bottomless brother/brother brothers duo fontcest gay gloves grabbing_leg hooded_jacket hoodie imminent_sex incest jacket leg_grab male male/male monster orange_blush papyrus papyrus_(undertale) papysans red_gloves red_scarf sans sans_(undertale) scarf seme_papyrus skeleton top_papyrus topless topless_male typhadog uke_sans undead undertale undertale_(series) yaoi
2017 2boys animated_skeleton arm_grab blue_blush blue_hoodie blue_jacket blush bottom_sans brother/brother brothers clothed dominant_pov duo fontcest gloves grabbing_arm hooded_jacket hoodie implied_incest implied_yaoi jacket male male_only male_pov mintea_007 monster papyrus_(undertale) papysans pink_socks pov red_gloves sans_(undertale) siblings skeleton socks solo_focus top_papyrus undead undertale undertale_(series) unseen_male_face
2017 2boys animated_skeleton arm_grab blue_blush blue_hoodie blue_jacket blush bottom_sans brother/brother brothers clothed dominant_pov duo fontcest gloves grabbing_arm hooded_jacket hoodie implied_incest implied_yaoi jacket male male_only male_pov mintea_007 monster papyrus_(undertale) papysans pink_socks pov red_gloves sans_(undertale) siblings skeleton socks solo_focus top_papyrus undead undertale undertale_(series) unseen_male_face
2023 animated_skeleton banknote blue_hoodie blue_jacket clothed english_text freaking_out hooded_jacket hoodie jacket male male_focus marusi_(pixiv_id_86049082) money monster monster_boy sans sans_(undertale) simple_background skeleton solo_focus text undead undertale undertale_(series) unseen_character unseen_male unseen_male_face upper_body white_background
2023 animated_skeleton banknote blue_hoodie blue_jacket clothed english_text freaking_out hooded_jacket hoodie jacket male male_focus marusi_(pixiv_id_86049082) money monster monster_boy sans sans_(undertale) simple_background skeleton solo_focus text undead undertale undertale_(series) unseen_character unseen_male unseen_male_face upper_body white_background
2boys 2d animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket blue_tongue blush bottom_sans brother/brother brother_penetrating_brother brothers clothed digital_media drunk duo ectopenis english_text face_grab fontcest from_behind_position ganzooky gay grabbing_face highres hood hooded_jacket humanoid incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller lying male male/male male_only male_penetrating monster monster_boy on_snow on_stomach one_eye_closed orange_blush orange_penis outside pants_around_one_leg pants_pulled_down papyrus_(undertale) papysans penetration penetration_from_behind sans_(undertale) sex sex_from_behind sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom snow sweat text tongue tongue_out top_papyrus undead undertale undertale_(series) video_game_character video_games white_background yaoi
2boys 2d animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket blue_tongue blush bottom_sans brother/brother brother_penetrating_brother brothers clothed digital_media drunk duo ectopenis english_text face_grab fontcest from_behind_position ganzooky gay grabbing_face highres hood hooded_jacket humanoid incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller lying male male/male male_only male_penetrating monster monster_boy on_snow on_stomach one_eye_closed orange_blush orange_penis outside pants_around_one_leg pants_pulled_down papyrus_(undertale) papysans penetration penetration_from_behind sans_(undertale) sex sex_from_behind sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom snow sweat text tongue tongue_out top_papyrus undead undertale undertale_(series) video_game_character video_games white_background yaoi
2023 2boys 2d 2d_(artwork) animated_skeleton bad_id bad_twitter_id bedroom blue_blush blue_hoodie blue_jacket blue_penis blush boots bottom_on_top bottom_sans brothers clothed dark dark_room digital_media_(artwork) duo erection erection_under_clothes fontcest fudanshipochoc gay glowing heart heart_eyes hooded_jacket hoodie imminent_sex incest indoors jacket male male/male male_only male_pov monster off_shoulder one_eye_closed orange_penis papyrus papyrus_(undertale) papysans partial_male penis_bulge pov power_bottom red_boots sans sans_(undertale) seductive seme_papyrus skeleton solo_focus top_papyrus touching_crotch twitter uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
2023 2boys 2d 2d_(artwork) animated_skeleton bad_id bad_twitter_id bedroom blue_blush blue_hoodie blue_jacket blue_penis blush boots bottom_on_top bottom_sans brothers clothed dark dark_room digital_media_(artwork) duo erection erection_under_clothes fontcest fudanshipochoc gay glowing heart heart_eyes hooded_jacket hoodie imminent_sex incest indoors jacket male male/male male_only male_pov monster off_shoulder one_eye_closed orange_penis papyrus papyrus_(undertale) papysans partial_male penis_bulge pov power_bottom red_boots sans sans_(undertale) seductive seme_papyrus skeleton solo_focus top_papyrus touching_crotch twitter uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
2022 2boys 2d all_fours alternate_costume animated_skeleton antler_headband bell_collar blue_blush blue_body blue_hoodie blue_jacket blush boots bottom_sans boxers_(clothing) brother/brother brothers candle candles christmas christmas_present christmas_sock christmas_tree clothed collar cookie couch digital_media duo ectobody ectopenis ectotongue fellatio floor fontcest food furniture gift_box glass gloves hand_on_another's_head holidays hooded_jacket hoodie humanoid incest indoors intraspecies jacket living_room male male/male male_only merry_christmas monster monster_boy on_floor oral oral_sex orange_blush orange_penis orange_tongue pants_on_floor pants_removed papyrus_(undertale) papysans penis plate red_footwear red_gloves red_hoodie red_jacket red_socks sans_(undertale) santa_hat sex sibling_incest siblings sinncognito sitting skeleton socks socks_on sucking_penis teeth top_papyrus undead undertale undertale_(series) video_games window yaoi
2022 2boys 2d all_fours alternate_costume animated_skeleton antler_headband bell_collar blue_blush blue_body blue_hoodie blue_jacket blush boots bottom_sans boxers_(clothing) brother/brother brothers candle candles christmas christmas_present christmas_sock christmas_tree clothed collar cookie couch digital_media duo ectobody ectopenis ectotongue fellatio floor fontcest food furniture gift_box glass gloves hand_on_another's_head holidays hooded_jacket hoodie humanoid incest indoors intraspecies jacket living_room male male/male male_only merry_christmas monster monster_boy on_floor oral oral_sex orange_blush orange_penis orange_tongue pants_on_floor pants_removed papyrus_(undertale) papysans penis plate red_footwear red_gloves red_hoodie red_jacket red_socks sans_(undertale) santa_hat sex sibling_incest siblings sinncognito sitting skeleton socks socks_on sucking_penis teeth top_papyrus undead undertale undertale_(series) video_games window yaoi
2021 2boys 2d animated_skeleton blue_blush blue_hoodie blue_jacket blush bonerut bottom_sans brother_penetrating_brother brothers clothed clothed_sex digital_media duo finger_to_mouth fontcest from_behind_position gloves hooded_jacket hoodie implied_penetration implied_sex incest intraspecies jacket male male_only male_penetrating monster monster_boy orange_blush outdoor_sex outside papyrus_(undertale) papysans penetration_from_behind penis public public_sex red_gloves sans_(undertale) sex_from_behind shh sibling_incest siblings skeleton stealth_sex top_papyrus undead undertale undertale_(series) yaoi
2021 2boys 2d animated_skeleton blue_blush blue_hoodie blue_jacket blush bonerut bottom_sans brother_penetrating_brother brothers clothed clothed_sex digital_media duo finger_to_mouth fontcest from_behind_position gloves hooded_jacket hoodie implied_penetration implied_sex incest intraspecies jacket male male_only male_penetrating monster monster_boy orange_blush outdoor_sex outside papyrus_(undertale) papysans penetration_from_behind penis public public_sex red_gloves sans_(undertale) sex_from_behind shh sibling_incest siblings skeleton stealth_sex top_papyrus undead undertale undertale_(series) yaoi
1boy 2021 2d animated_skeleton blue_hoodie blue_jacket bonerut bottom_sans bulge clothed crying crying_with_eyes_open digital_media erection_under_clothes glowing glowing_genitalia heart hooded_jacket hoodie jacket male male_only monster pink_background sans_(undertale) skeleton solo_male submissive tears uke_sans undead undertale undertale_(series)
1boy 2021 2d animated_skeleton blue_hoodie blue_jacket bonerut bottom_sans bulge clothed crying crying_with_eyes_open digital_media erection_under_clothes glowing glowing_genitalia heart hooded_jacket hoodie jacket male male_only monster pink_background sans_(undertale) skeleton solo_male submissive tears uke_sans undead undertale undertale_(series)
2015 2boys 2d 2d_(artwork) animated_skeleton anon anonymous_male blue_blush blue_hoodie blue_jacket blue_tongue blush bottom_sans clothed digital_media_(artwork) english_text eye_fucking eye_penetration heart-shaped_pupils heart_eyes hooded_jacket hoodie jacket male male_focus male_only monster penis penis_in_eye sans sans_(undertale) skeleton skull_fucking solo_focus suckmytrombone text tongue tongue_out uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2015 2boys 2d 2d_(artwork) animated_skeleton anon anonymous_male blue_blush blue_hoodie blue_jacket blue_tongue blush bottom_sans clothed digital_media_(artwork) english_text eye_fucking eye_penetration heart-shaped_pupils heart_eyes hooded_jacket hoodie jacket male male_focus male_only monster penis penis_in_eye sans sans_(undertale) skeleton skull_fucking solo_focus suckmytrombone text tongue tongue_out uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi