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papyrus (undertale)

1boy 1girl 2020s 2024 2d 2d_(artwork) absurd_res ahegao animated_skeleton anterior_nasal_aperture anus areolae arm_support ass big_breasts blue_areola blue_blush blue_body blue_breasts blue_nipples blue_pussy blue_tongue blush bottom_sans breasts brother brother/sister brother_and_sister brothers chubby digital_media_(artwork) duo ectobody ectobreasts ectotongue female_ejaculation female_focus female_sans fontcest genderswap genderswap_(mtf) genitals incest licking licking_pussy male male/female moaning monster multiple_orgasms multiple_views navel nipples nude nude_female oral oral_sex orange_blush orgasm papyrus papyrus_(undertale) papysans pussy pussylicking renrilu_art sans sans_(undertale) seme_papyrus sex siblings sister skeleton solo_focus spread_legs squirting submissive thighs tongue tongue_out top_papyrus twitter uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games white_background
1boy 1girl 2020s 2024 2d 2d_(artwork) absurd_res ahegao animated_skeleton anterior_nasal_aperture anus areolae arm_support ass big_breasts blue_areola blue_blush blue_body blue_breasts blue_nipples blue_pussy blue_tongue blush bottom_sans breasts brother brother/sister brother_and_sister brothers chubby digital_media_(artwork) duo ectobody ectobreasts ectotongue female_ejaculation female_focus female_sans fontcest genderswap genderswap_(mtf) genitals incest licking licking_pussy male male/female moaning monster multiple_orgasms multiple_views navel nipples nude nude_female oral oral_sex orange_blush orgasm papyrus papyrus_(undertale) papysans pussy pussylicking renrilu_art sans sans_(undertale) seme_papyrus sex siblings sister skeleton solo_focus spread_legs squirting submissive thighs tongue tongue_out top_papyrus twitter uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games white_background
2boys 2d 2d_(artwork) 3koma anal animated_skeleton begging_for_more blue_blush blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing comic comic_panel digital_media_(artwork) drooling duo english_text fontcest from_front_position hand_on_another's_head hand_on_head hooded_jacket hoodie incest intraspecies jacket male male/male male_only male_penetrating male_penetrating_male misake-san missionary_position moaning monster monster_boy motion_lines orange_blush papyrus papyrus_(undertale) papysans rough_sex sans sans_(undertale) seme_papyrus sex sibling_incest siblings skeleton socks speech_bubble sweat text thrusting top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
2boys 2d 2d_(artwork) 3koma anal animated_skeleton begging_for_more blue_blush blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing comic comic_panel digital_media_(artwork) drooling duo english_text fontcest from_front_position hand_on_another's_head hand_on_head hooded_jacket hoodie incest intraspecies jacket male male/male male_only male_penetrating male_penetrating_male misake-san missionary_position moaning monster monster_boy motion_lines orange_blush papyrus papyrus_(undertale) papysans rough_sex sans sans_(undertale) seme_papyrus sex sibling_incest siblings skeleton socks speech_bubble sweat text thrusting top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
2d 2d_(artwork) animated_skeleton blue_blush blue_hoodie blue_jacket blush bottom_sans breasts brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing digital_media_(artwork) duo ectobreasts ectopenis ectoplasm fontcest genitals hooded_jacket hoodie incest jacket male male_pov medium_breasts misake-san moaning monster orange_penis papyrus papyrus_(undertale) papysans penetrating_pov penetration penetrator_pov penis sans sans_(undertale) seme_papyrus sex skeleton solo_focus speech_bubble top_papyrus topwear uke_sans undead undertale undertale_(series) unseen_male unseen_male_face video_game_character video_games
2d 2d_(artwork) animated_skeleton blue_blush blue_hoodie blue_jacket blush bottom_sans breasts brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing digital_media_(artwork) duo ectobreasts ectopenis ectoplasm fontcest genitals hooded_jacket hoodie incest jacket male male_pov medium_breasts misake-san moaning monster orange_penis papyrus papyrus_(undertale) papysans penetrating_pov penetration penetrator_pov penis sans sans_(undertale) seme_papyrus sex skeleton solo_focus speech_bubble top_papyrus topwear uke_sans undead undertale undertale_(series) unseen_male unseen_male_face video_game_character video_games
1girl 2010s 2015 2d 2d_(artwork) aged_up breasts brown_hair clothing english_text female_focus female_frisk female_human fingering fingering_self frisk frisk_(undertale) hair_over_eyes hetero human human_focus ladybumtickler legwear lying_on_bed lying_on_side masturbation moaning nipples on_bed on_side panties papyrisk papyrus papyrus_(undertale) phone phone_call pillow pillow_grab short_hair simple_background sniggysmut solo_focus speech_bubble straight text topless topless_female tumblr undertale undertale_(series) unseen_character unseen_male video_game_character video_games white_background
1girl 2010s 2015 2d 2d_(artwork) aged_up breasts brown_hair clothing english_text female_focus female_frisk female_human fingering fingering_self frisk frisk_(undertale) hair_over_eyes hetero human human_focus ladybumtickler legwear lying_on_bed lying_on_side masturbation moaning nipples on_bed on_side panties papyrisk papyrus papyrus_(undertale) phone phone_call pillow pillow_grab short_hair simple_background sniggysmut solo_focus speech_bubble straight text topless topless_female tumblr undertale undertale_(series) unseen_character unseen_male video_game_character video_games white_background
1:1 1:1_aspect_ratio 2boys 2d 2d_(artwork) animated_skeleton big_penis blue_blush blue_hoodie blue_jacket blue_penis blush bodily_fluids bottomless bottomless_male brother brother/brother brother_and_brother brothers cock_hungry cum cumshot digital_media_(artwork) drooling duo ectopenis ectoplasm english_text fantasizing fontcest genitals glowing glowing_genitalia glowing_penis hands_on_cheeks hands_on_own_cheeks heart-shaped_pupils heart_eyes hooded_jacket hoodie hoodie_only incest jacket looking_at_genitalia looking_at_penis looking_down male male/male male_only measurements monster multiple_views nude orange_cum orange_penis otterrpopp papyrus papyrus_(undertale) penis penis_measurement penis_measuring precum sans sans_(undertale) skeleton small_penis smooth_penis solo_focus talking talking_to_self text thinking third-party_source topwear undead undertale undertale_(series) unseen_character unseen_male unseen_male_face veiny_penis video_game_character video_games white_background yaoi
1:1 1:1_aspect_ratio 2boys 2d 2d_(artwork) animated_skeleton big_penis blue_blush blue_hoodie blue_jacket blue_penis blush bodily_fluids bottomless bottomless_male brother brother/brother brother_and_brother brothers cock_hungry cum cumshot digital_media_(artwork) drooling duo ectopenis ectoplasm english_text fantasizing fontcest genitals glowing glowing_genitalia glowing_penis hands_on_cheeks hands_on_own_cheeks heart-shaped_pupils heart_eyes hooded_jacket hoodie hoodie_only incest jacket looking_at_genitalia looking_at_penis looking_down male male/male male_only measurements monster multiple_views nude orange_cum orange_penis otterrpopp papyrus papyrus_(undertale) penis penis_measurement penis_measuring precum sans sans_(undertale) skeleton small_penis smooth_penis solo_focus talking talking_to_self text thinking third-party_source topwear undead undertale undertale_(series) unseen_character unseen_male unseen_male_face veiny_penis video_game_character video_games white_background yaoi
2010s 2015 2boys 2d 2d_(artwork) 2males animated_skeleton arm_support bad_id bad_tumblr_id big_penis bigger_male blue_background bodily_fluids bottom_sans brother brother/brother brother_and_brother brothers closed_eyes clothed clothed_male clothing digital_media_(artwork) 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 papyrus_(undertale) papysans partially_colored penis penis_grab penis_through_clothing sans sans_(undertale) scarf seme_papyrus sex sibling_incest siblings skeleton smaller_male solo_focus sweat testicles third-party_source tongue top_papyrus tumblr uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2015 2boys 2d 2d_(artwork) 2males animated_skeleton arm_support bad_id bad_tumblr_id big_penis bigger_male blue_background bodily_fluids bottom_sans brother brother/brother brother_and_brother brothers closed_eyes clothed clothed_male clothing digital_media_(artwork) 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 papyrus_(undertale) papysans partially_colored penis penis_grab penis_through_clothing sans sans_(undertale) scarf seme_papyrus sex sibling_incest siblings skeleton smaller_male solo_focus sweat testicles third-party_source tongue top_papyrus tumblr uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
1boy 1cuntboy 2010s 2015 2d 2d_(artwork) animated_skeleton bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_jacket blue_pussy blush bottom_on_top bottom_sans bottomwear brother brother/brother brother_and_brother brother_penetrating_brother brothers brown_background clitoris clothed clothing cuntboy cuntboy_penetrated digital_media_(artwork) drooling duo ectopenis ectopussy fontcest genitals gloves glowing glowing_genitalia glowing_penis heart-shaped_pupils heart_eyes incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller male male/cuntboy male_only male_penetrating male_penetrating_cuntboy monster monster_boy orange_blush orange_penis papyrus papyrus_(undertale) papysans penetration penetration_through_clothes penis penis_through_clothing pussy pussy_through_clothing red_gloves royalstash sans sans_(undertale) seme_papyrus sex sex_through_clothes sibling_incest siblings simple_background sitting skeleton smaller_cuntboy smaller_penetrated solid_color_background text top_papyrus topwear uke_sans undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games yaoi
1boy 1cuntboy 2010s 2015 2d 2d_(artwork) animated_skeleton bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_jacket blue_pussy blush bottom_on_top bottom_sans bottomwear brother brother/brother brother_and_brother brother_penetrating_brother brothers brown_background clitoris clothed clothing cuntboy cuntboy_penetrated digital_media_(artwork) drooling duo ectopenis ectopussy fontcest genitals gloves glowing glowing_genitalia glowing_penis heart-shaped_pupils heart_eyes incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller male male/cuntboy male_only male_penetrating male_penetrating_cuntboy monster monster_boy orange_blush orange_penis papyrus papyrus_(undertale) papysans penetration penetration_through_clothes penis penis_through_clothing pussy pussy_through_clothing red_gloves royalstash sans sans_(undertale) seme_papyrus sex sex_through_clothes sibling_incest siblings simple_background sitting skeleton smaller_cuntboy smaller_penetrated solid_color_background text top_papyrus topwear uke_sans undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games yaoi
2boys 2d 2d_(artwork) after_penetration after_sex ahegao anal animated_skeleton arm_support ass ass_grab bad_id bad_tumblr_id bigger_penetrating blue_blush blue_hoodie blue_jacket blue_tongue blush bone bottom_on_top bottom_sans bottomless brother brother/brother brother_and_brother brothers clothed clothed_male clothed_sex clothing cum cum_leaking cum_trail digital_media_(artwork) drooling duo ectopenis ectoplasm ectotongue erection facing_another fontcest fully_clothed fully_clothed_male genital_fluids genitals gloves heart heart-shaped_pupils heart_eyes hooded_jacket hoodie humanoid humanoid_penis incest intraspecies jacket kneel kneeling larger_penetrating larger_penetrating_smaller looking_at_another looking_at_partner male male/male male_ahegao male_only male_penetrating mastery_position monster monster_boy open_mouth orange_blush orange_penis panting papyrus papyrus_(undertale) papysans partially_clothed penis penis_through_clothing power_bottom red_gloves sans sans_(undertale) seme_papyrus sex sibling_incest siblings sitting skeleton smaller_penetrated spoopy-gaster straddling submissive_top sweat third-party_source tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath white_background yaoi
2boys 2d 2d_(artwork) after_penetration after_sex ahegao anal animated_skeleton arm_support ass ass_grab bad_id bad_tumblr_id bigger_penetrating blue_blush blue_hoodie blue_jacket blue_tongue blush bone bottom_on_top bottom_sans bottomless brother brother/brother brother_and_brother brothers clothed clothed_male clothed_sex clothing cum cum_leaking cum_trail digital_media_(artwork) drooling duo ectopenis ectoplasm ectotongue erection facing_another fontcest fully_clothed fully_clothed_male genital_fluids genitals gloves heart heart-shaped_pupils heart_eyes hooded_jacket hoodie humanoid humanoid_penis incest intraspecies jacket kneel kneeling larger_penetrating larger_penetrating_smaller looking_at_another looking_at_partner male male/male male_ahegao male_only male_penetrating mastery_position monster monster_boy open_mouth orange_blush orange_penis panting papyrus papyrus_(undertale) papysans partially_clothed penis penis_through_clothing power_bottom red_gloves sans sans_(undertale) seme_papyrus sex sibling_incest siblings sitting skeleton smaller_penetrated spoopy-gaster straddling submissive_top sweat third-party_source tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games visible_breath white_background yaoi
2010s 2017 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub blue_blush blush blushing_male bottom_sans bound bound_wrists brother brother/brother brother_and_brother brothers christmas clothed clothing digital_media_(artwork) dominant dominant_male domination duo ectopenis english_text fontcest genitals gloves happy_new_year imminent_sex incest intraspecies looking_at_genitalia looking_at_penis looking_down male male/male male_only maledom malesub monster monster_boy new_year orange_blush orange_penis papyrus papyrus_(undertale) papysans penis penis_out precum questionable_consent red_gloves red_scarf sans sans_(undertale) santa_hat scarf seme_papyrus sequence sequential sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_sub_bigger_dom submissive submissive_male taped_mouth text theyaois tied_up tied_wrists top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yandere yaoi
2010s 2017 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub blue_blush blush blushing_male bottom_sans bound bound_wrists brother brother/brother brother_and_brother brothers christmas clothed clothing digital_media_(artwork) dominant dominant_male domination duo ectopenis english_text fontcest genitals gloves happy_new_year imminent_sex incest intraspecies looking_at_genitalia looking_at_penis looking_down male male/male male_only maledom malesub monster monster_boy new_year orange_blush orange_penis papyrus papyrus_(undertale) papysans penis penis_out precum questionable_consent red_gloves red_scarf sans sans_(undertale) santa_hat scarf seme_papyrus sequence sequential sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_sub_bigger_dom submissive submissive_male taped_mouth text theyaois tied_up tied_wrists top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yandere yaoi
2010s 2017 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans bound bound_wrists brother brother/brother brother_and_brother brothers christmas clothed clothing digital_media_(artwork) dominant dominant_male domination duo english_text fontcest gloves happy_new_year imminent_sex incest intraspecies male male/male male_only maledom malesub monster monster_boy new_year papyrus papyrus_(undertale) papysans questionable_consent red_gloves red_scarf sans sans_(undertale) santa_hat scarf seme_papyrus sequence sequential sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_sub_bigger_dom speech_bubble submissive submissive_male taped_mouth text text_bubble theyaois tied_up tied_wrists top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yandere yaoi
2010s 2017 2boys 2d 2d_(artwork) alternate_version_available animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans bound bound_wrists brother brother/brother brother_and_brother brothers christmas clothed clothing digital_media_(artwork) dominant dominant_male domination duo english_text fontcest gloves happy_new_year imminent_sex incest intraspecies male male/male male_only maledom malesub monster monster_boy new_year papyrus papyrus_(undertale) papysans questionable_consent red_gloves red_scarf sans sans_(undertale) santa_hat scarf seme_papyrus sequence sequential sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_sub_bigger_dom speech_bubble submissive submissive_male taped_mouth text text_bubble theyaois tied_up tied_wrists top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yandere yaoi
1boy 1cuntboy 2010s 2016 2d 2d_(artwork) ahegao animated_skeleton artist_name blue_blush blue_body blue_tongue blush bodily_fluids bottom_sans bottomless bottomless_cuntboy brother brother/brother brother_and_brother brother_penetrating_brother brothers brown_background carrying carrying_partner carrying_position clothed clothing cuntboy cuntboy_penetrated digital_media_(artwork) 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 papyrus_(undertale) papysans penetration penis pleasure_face profanity pussy sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background sitting skeleton solid_color_background speech_bubble stockings talking talking_to_another talking_to_partner text thighhighs tongue tongue_out top_papyrus topwear two-tone_legwear two_tone_legwear uke_sans undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games yaoi
1boy 1cuntboy 2010s 2016 2d 2d_(artwork) ahegao animated_skeleton artist_name blue_blush blue_body blue_tongue blush bodily_fluids bottom_sans bottomless bottomless_cuntboy brother brother/brother brother_and_brother brother_penetrating_brother brothers brown_background carrying carrying_partner carrying_position clothed clothing cuntboy cuntboy_penetrated digital_media_(artwork) 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 papyrus_(undertale) papysans penetration penis pleasure_face profanity pussy sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background sitting skeleton solid_color_background speech_bubble stockings talking talking_to_another talking_to_partner text thighhighs tongue tongue_out top_papyrus topwear two-tone_legwear two_tone_legwear uke_sans undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games yaoi
2010s 2boys 2d 2d_(artwork) anal anal_penetration anal_sex animated_skeleton armwear artist_name ass ass_grab backsack bell_choker bell_collar bent_over blush bottom_sans breasts brother brother/brother brother_penetrating_brother brothers bulging_eyes christmas christmas_hat christmas_outfit christmas_tree cleavage clothed clothing comic comic_panel counter crossdressing digital_media_(artwork) dress dress_lift duo ectobody ectobreasts ectobutt ectopenis ectoplasm edit edited eli-sin-g english_text fontcest from_behind_position gift gift_box gloves grabbing_own_penis hat holidays incest intraspecies kitchen kitchen_counter kolesjoie male male/male male_only male_penetrated male_penetrating male_penetrating_male male_with_breasts merry_christmas monochrome monster monster_boy moobs panties papyrus papyrus_(undertale) papysans penetration penetration_from_behind penis penis_grab profanity ribbon_choker ribbon_collar sans sans_(undertale) santa_costume santa_dress santa_hat scarf seducing seductive seme_papyrus sex sex_from_behind sibling_incest siblings skeleton striptease talking testicle text thighs third-party_edit top_papyrus topwear uke_sans undead undertale undertale_(series) veiny_penis video_game_character video_games wink yaoi
2010s 2boys 2d 2d_(artwork) anal anal_penetration anal_sex animated_skeleton armwear artist_name ass ass_grab backsack bell_choker bell_collar bent_over blush bottom_sans breasts brother brother/brother brother_penetrating_brother brothers bulging_eyes christmas christmas_hat christmas_outfit christmas_tree cleavage clothed clothing comic comic_panel counter crossdressing digital_media_(artwork) dress dress_lift duo ectobody ectobreasts ectobutt ectopenis ectoplasm edit edited eli-sin-g english_text fontcest from_behind_position gift gift_box gloves grabbing_own_penis hat holidays incest intraspecies kitchen kitchen_counter kolesjoie male male/male male_only male_penetrated male_penetrating male_penetrating_male male_with_breasts merry_christmas monochrome monster monster_boy moobs panties papyrus papyrus_(undertale) papysans penetration penetration_from_behind penis penis_grab profanity ribbon_choker ribbon_collar sans sans_(undertale) santa_costume santa_dress santa_hat scarf seducing seductive seme_papyrus sex sex_from_behind sibling_incest siblings skeleton striptease talking testicle text thighs third-party_edit top_papyrus topwear uke_sans undead undertale undertale_(series) veiny_penis video_game_character video_games wink yaoi
2010s 2boys 2d 2d_(artwork) anal anal_penetration anal_sex animated_skeleton armwear artist_name ass ass_grab backsack bell_choker bell_collar bent_over blush bottom_sans breasts brother brother/brother brother_penetrating_brother brothers bulging_eyes christmas christmas_hat christmas_outfit christmas_tree cleavage clothed clothing comic comic_panel counter crossdressing digital_media_(artwork) dress dress_lift duo ectobody ectobreasts ectobutt ectopenis ectoplasm edit edited eli-sin-g english_text fontcest from_behind_position gift gift_box gloves grabbing_own_penis hat holidays incest intraspecies kitchen kitchen_counter kolesjoie male male/male male_only male_penetrated male_penetrating male_penetrating_male male_with_breasts merry_christmas monochrome monster monster_boy moobs panties papyrus papyrus_(undertale) papysans penetration penetration_from_behind penis penis_grab profanity ribbon_choker ribbon_collar sans sans_(undertale) santa_costume santa_dress santa_hat scarf seducing seductive seme_papyrus sex sex_from_behind sibling_incest siblings skeleton striptease talking testicle text thighs top_papyrus topwear uke_sans undead undertale undertale_(series) veiny_penis video_game_character video_games wink yaoi
2010s 2boys 2d 2d_(artwork) anal anal_penetration anal_sex animated_skeleton armwear artist_name ass ass_grab backsack bell_choker bell_collar bent_over blush bottom_sans breasts brother brother/brother brother_penetrating_brother brothers bulging_eyes christmas christmas_hat christmas_outfit christmas_tree cleavage clothed clothing comic comic_panel counter crossdressing digital_media_(artwork) dress dress_lift duo ectobody ectobreasts ectobutt ectopenis ectoplasm edit edited eli-sin-g english_text fontcest from_behind_position gift gift_box gloves grabbing_own_penis hat holidays incest intraspecies kitchen kitchen_counter kolesjoie male male/male male_only male_penetrated male_penetrating male_penetrating_male male_with_breasts merry_christmas monochrome monster monster_boy moobs panties papyrus papyrus_(undertale) papysans penetration penetration_from_behind penis penis_grab profanity ribbon_choker ribbon_collar sans sans_(undertale) santa_costume santa_dress santa_hat scarf seducing seductive seme_papyrus sex sex_from_behind sibling_incest siblings skeleton striptease talking testicle text thighs top_papyrus topwear uke_sans undead undertale undertale_(series) veiny_penis video_game_character video_games wink yaoi
2010s 2017 2boys 2d 2d_(artwork) ahegao anal animated_skeleton announcing_orgasm artist_name blue_blush blue_tongue blush boots bottom_sans bottomless_skirt brother brother/brother brother_penetrating_brother brothers christmas christmas_hat christmas_outfit clothed clothing comic comic_page comic_panel couch couch_sex crossdressing cum digital_media_(artwork) drooling duo ectopenis ectoplasm ectotongue edit edited ejaculation english_text fontcest from_front_position gloves hat holidays incest interlocked_fingers intertwined_fingers intraspecies large_filesize legwear long_image making_out male male/male male_only male_penetrated male_penetrating male_penetrating_male merry_christmas midriff missionary_position monochrome monster monster_boy multiple_images orgasm papyrus papyrus_(undertale) papysans partially_colored penetration red_blush red_penis red_tongue removing_glove saliva saliva_trail sans sans_(undertale) santa_costume santa_hat scarf seme_papyrus sequence sequential sex short_skirt sibling_incest siblings skeleton skirt sofa stockings talking tall_image tears text third-party_edit thornisicezins thrusting tongue top_papyrus topwear touching_crotch tumblr tumblr_username typo uke_sans undead undertale undertale_(series) video_games wink yaoi
2010s 2017 2boys 2d 2d_(artwork) ahegao anal animated_skeleton announcing_orgasm artist_name blue_blush blue_tongue blush boots bottom_sans bottomless_skirt brother brother/brother brother_penetrating_brother brothers christmas christmas_hat christmas_outfit clothed clothing comic comic_page comic_panel couch couch_sex crossdressing cum digital_media_(artwork) drooling duo ectopenis ectoplasm ectotongue edit edited ejaculation english_text fontcest from_front_position gloves hat holidays incest interlocked_fingers intertwined_fingers intraspecies large_filesize legwear long_image making_out male male/male male_only male_penetrated male_penetrating male_penetrating_male merry_christmas midriff missionary_position monochrome monster monster_boy multiple_images orgasm papyrus papyrus_(undertale) papysans partially_colored penetration red_blush red_penis red_tongue removing_glove saliva saliva_trail sans sans_(undertale) santa_costume santa_hat scarf seme_papyrus sequence sequential sex short_skirt sibling_incest siblings skeleton skirt sofa stockings talking tall_image tears text third-party_edit thornisicezins thrusting tongue top_papyrus topwear touching_crotch tumblr tumblr_username typo uke_sans undead undertale undertale_(series) video_games wink yaoi
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1boy 1cuntboy 2020s 2023 2d 2d_(artwork) animated_skeleton aokisk artist_name big_penis bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_pussy blue_tongue blush bottom_sans bottomless bottomless_cuntboy bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clitoris clothed clothing crying crying_with_eyes_open cuntboy cuntboy_penetrated digital_media_(artwork) drooling duo ectopenis ectopussy english_text fontcest from_behind_position genitals gloves grey_background grey_socks hand_under_clothes holding_hand incest intraspecies kneel larger_male larger_penetrating larger_penetrating_smaller male male/cuntboy male_only male_penetrating male_penetrating_cuntboy monster monster_boy orange_blush orange_eye orange_penis papyrus papyrus_(undertale) papysans partially_clothed penetration penetration_from_behind penis pussy red_gloves riding riding_penis sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings simple_background sitting skeleton smaller_cuntboy smaller_penetrated socks talking_to_another talking_to_partner tears text tongue tongue_out top_papyrus topwear twitter_username uke_sans undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games yaoi
1boy 1cuntboy 2020s 2023 2d 2d_(artwork) animated_skeleton aokisk artist_name big_penis bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_pussy blue_tongue blush bottom_sans bottomless bottomless_cuntboy bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clitoris clothed clothing crying crying_with_eyes_open cuntboy cuntboy_penetrated digital_media_(artwork) drooling duo ectopenis ectopussy english_text fontcest from_behind_position genitals gloves grey_background grey_socks hand_under_clothes holding_hand incest intraspecies kneel larger_male larger_penetrating larger_penetrating_smaller male male/cuntboy male_only male_penetrating male_penetrating_cuntboy monster monster_boy orange_blush orange_eye orange_penis papyrus papyrus_(undertale) papysans partially_clothed penetration penetration_from_behind penis pussy red_gloves riding riding_penis sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings simple_background sitting skeleton smaller_cuntboy smaller_penetrated socks talking_to_another talking_to_partner tears text tongue tongue_out top_papyrus topwear twitter_username uke_sans undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games yaoi
2010s 2018 2boys 2d 2d_(artwork) anal animated_skeleton artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blue_eyes blue_penis blue_tongue blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing crying crying_with_eyes_open dominant dominant_male duo ectopenis ectotongue edit edited fontcest from_behind_position gay_sex gif gloves glowing glowing_genitalia glowing_penis grabbing grabbing_clothing grabbing_from_behind heart-shaped_pupils heart_eyes incest larger_male male male/male male_focus male_only maledom malesub monster open_mouth orange_penis papyrus papyrus_(undertale) papysans penetration penetration_from_behind penis pleasure_face realdemdemdmensfw sans sans_(undertale) seme_papyrus sex sex_from_behind simple_background skeleton slideshow small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom solo_focus submissive submissive_male tears tears_of_pleasure third-party_edit tongue tongue_out top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games white_background yaoi
2010s 2018 2boys 2d 2d_(artwork) anal animated_skeleton artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blue_eyes blue_penis blue_tongue blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing crying crying_with_eyes_open dominant dominant_male duo ectopenis ectotongue edit edited fontcest from_behind_position gay_sex gif gloves glowing glowing_genitalia glowing_penis grabbing grabbing_clothing grabbing_from_behind heart-shaped_pupils heart_eyes incest larger_male male male/male male_focus male_only maledom malesub monster open_mouth orange_penis papyrus papyrus_(undertale) papysans penetration penetration_from_behind penis pleasure_face realdemdemdmensfw sans sans_(undertale) seme_papyrus sex sex_from_behind simple_background skeleton slideshow small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom solo_focus submissive submissive_male tears tears_of_pleasure third-party_edit tongue tongue_out top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games white_background yaoi
2010s 2018 2boys 2d 2d_(artwork) anal animated_skeleton artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blue_eyes blue_penis blue_tongue blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing crying crying_with_eyes_open dominant dominant_male duo ectopenis ectotongue edit edited fontcest from_behind_position gay_sex gloves glowing glowing_genitalia glowing_penis grabbing grabbing_clothing grabbing_from_behind heart-shaped_pupils heart_eyes incest larger_male long_image male male/male male_focus male_only maledom malesub monster open_mouth orange_penis papyrus papyrus_(undertale) papysans penetration penetration_from_behind penis pleasure_face realdemdemdmensfw sans sans_(undertale) seme_papyrus sex sex_from_behind simple_background skeleton small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom solo_focus submissive submissive_male tears tears_of_pleasure third-party_edit tongue tongue_out top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games white_background yaoi
2010s 2018 2boys 2d 2d_(artwork) anal animated_skeleton artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blue_eyes blue_penis blue_tongue blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing crying crying_with_eyes_open dominant dominant_male duo ectopenis ectotongue edit edited fontcest from_behind_position gay_sex gloves glowing glowing_genitalia glowing_penis grabbing grabbing_clothing grabbing_from_behind heart-shaped_pupils heart_eyes incest larger_male long_image male male/male male_focus male_only maledom malesub monster open_mouth orange_penis papyrus papyrus_(undertale) papysans penetration penetration_from_behind penis pleasure_face realdemdemdmensfw sans sans_(undertale) seme_papyrus sex sex_from_behind simple_background skeleton small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom solo_focus submissive submissive_male tears tears_of_pleasure third-party_edit tongue tongue_out top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games white_background yaoi