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2020s 2021 2boys 2d 2d_(artwork) absurd_res animated_skeleton artist_name black_bottomwear black_clothing black_pants blue_blush blue_clothing blue_eye blue_hoodie blue_jacket blue_penis blue_topwear blush blush_lines blushing_male bodily_fluids bone boots bottom_sans bottomwear brother brother/brother brother_and_brother brothers candy candy_cane christmas christmas_clothing christmas_headwear christmas_sweater christmas_topwear clothed clothing covering_mouth covering_own_mouth dessert digital_media_(artwork) dominant dominant_male duo ectopenis ectoplasm ectotongue english_text fluids fontcest food food_fetish food_insertion food_play footwear ganzooky genital_fluids genitals gloves glowing glowing_eye green_background greeting_card hand_on_mouth hat headgear headwear hi_res holidays hooded_jacket hoodie improvised_sex_toy incest intraspecies jacket legs_apart male male/male male_only maledom malesub merry_christmas monster monster_boy nsfwsinningsans object_insertion orange_blush orange_tongue pants papyrus papyrus_(undertale) papysans pattern_bottomwear pattern_clothing pattern_pants penis pink_footwear pink_slippers precum red_boots red_clothing red_footwear red_gloves red_ribbon ribbon ribbon_on_penis sans sans_(undertale) santa_hat seme_papyrus sibling_incest siblings sitting skeleton slippers snow socks sounding spread_legs striped_bottomwear striped_clothing striped_pants stripes submissive submissive_male sweater text tongue tongue_out top_papyrus topwear translucent_penis two-tone_background uke_sans undead undertale undertale_(series) urethral urethral_insertion video_games white_border yaoi
2020s 2021 2boys 2d 2d_(artwork) absurd_res animated_skeleton artist_name black_bottomwear black_clothing black_pants blue_blush blue_clothing blue_eye blue_hoodie blue_jacket blue_penis blue_topwear blush blush_lines blushing_male bodily_fluids bone boots bottom_sans bottomwear brother brother/brother brother_and_brother brothers candy candy_cane christmas christmas_clothing christmas_headwear christmas_sweater christmas_topwear clothed clothing covering_mouth covering_own_mouth dessert digital_media_(artwork) dominant dominant_male duo ectopenis ectoplasm ectotongue english_text fluids fontcest food food_fetish food_insertion food_play footwear ganzooky genital_fluids genitals gloves glowing glowing_eye green_background greeting_card hand_on_mouth hat headgear headwear hi_res holidays hooded_jacket hoodie improvised_sex_toy incest intraspecies jacket legs_apart male male/male male_only maledom malesub merry_christmas monster monster_boy nsfwsinningsans object_insertion orange_blush orange_tongue pants papyrus papyrus_(undertale) papysans pattern_bottomwear pattern_clothing pattern_pants penis pink_footwear pink_slippers precum red_boots red_clothing red_footwear red_gloves red_ribbon ribbon ribbon_on_penis sans sans_(undertale) santa_hat seme_papyrus sibling_incest siblings sitting skeleton slippers snow socks sounding spread_legs striped_bottomwear striped_clothing striped_pants stripes submissive submissive_male sweater text tongue tongue_out top_papyrus topwear translucent_penis two-tone_background uke_sans undead undertale undertale_(series) urethral urethral_insertion video_games white_border yaoi
2010s 2017 2boys anal anal_penetration anal_sex animated_skeleton balls bed bedroom biting_pillow blanket blue_blush blue_body blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers bulge clothed clothing comic comic_page comic_panel crying crying_with_eyes_open dry_humping duo ectobody ectopenis edit edited erection erection_under_clothes fontcest glowing glowing_eye glowing_genitalia glowing_penis groping groping_from_behind hand_in_pants hand_under_clothes humping incest indoors intraspecies large_filesize laying_on_bed looking_at_another looking_at_each_other lying_on_bed male male/male male_only male_penetrated male_penetrating male_penetrating_male monochrome monster monster_boy on_bed on_side orange_balls orange_blush orange_body orange_penis orange_testicles papyrus papyrus_(undertale) papysans partially_colored penetration penis penis_in_anus profanity sans sans_(undertale) seme_papyrus sequence sequential sex sex_on_bed sibling_incest siblings skeleton sleeping sleeping_together supermuuh surprised surprised_expression sweat tears testicles text third-party_edit top_papyrus uke_sans undead under_blanket undertale undertale_(series) waking_up yaoi
2010s 2017 2boys anal anal_penetration anal_sex animated_skeleton balls bed bedroom biting_pillow blanket blue_blush blue_body blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers bulge clothed clothing comic comic_page comic_panel crying crying_with_eyes_open dry_humping duo ectobody ectopenis edit edited erection erection_under_clothes fontcest glowing glowing_eye glowing_genitalia glowing_penis groping groping_from_behind hand_in_pants hand_under_clothes humping incest indoors intraspecies large_filesize laying_on_bed looking_at_another looking_at_each_other lying_on_bed male male/male male_only male_penetrated male_penetrating male_penetrating_male monochrome monster monster_boy on_bed on_side orange_balls orange_blush orange_body orange_penis orange_testicles papyrus papyrus_(undertale) papysans partially_colored penetration penis penis_in_anus profanity sans sans_(undertale) seme_papyrus sequence sequential sex sex_on_bed sibling_incest siblings skeleton sleeping sleeping_together supermuuh surprised surprised_expression sweat tears testicles text third-party_edit top_papyrus uke_sans undead under_blanket undertale undertale_(series) waking_up yaoi
2010s 2017 2boys 2d 2d_(artwork) anal anal_penetration anal_sex animated_skeleton balls bed bedroom biting_pillow blanket blue_blush blue_body blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers bulge clothed clothing comic comic_page comic_panel crying crying_with_eyes_open digital_media_(artwork) dry_humping duo ectobody ectopenis edit edited erection erection_under_clothes fontcest glowing glowing_eye glowing_genitalia glowing_penis groping groping_from_behind hand_in_pants hand_under_clothes humping incest indoors intraspecies large_filesize long_image looking_at_another looking_at_each_other lying_on_bed male male/male male_only male_penetrated male_penetrating male_penetrating_male monochrome monster monster_boy multiple_images on_bed on_side orange_balls orange_blush orange_body orange_penis orange_testicles papyrus papyrus_(undertale) papysans partially_colored penetration penis penis_in_anus profanity sans sans_(undertale) seme_papyrus sequence sequential sex sex_on_bed sibling_incest siblings skeleton sleeping sleeping_together supermuuh surprised surprised_expression sweat tall_image tears testicles text third-party_edit top_papyrus uke_sans undead under_blanket undertale undertale_(series) video_games waking_up yaoi
2010s 2017 2boys 2d 2d_(artwork) anal anal_penetration anal_sex animated_skeleton balls bed bedroom biting_pillow blanket blue_blush blue_body blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers bulge clothed clothing comic comic_page comic_panel crying crying_with_eyes_open digital_media_(artwork) dry_humping duo ectobody ectopenis edit edited erection erection_under_clothes fontcest glowing glowing_eye glowing_genitalia glowing_penis groping groping_from_behind hand_in_pants hand_under_clothes humping incest indoors intraspecies large_filesize long_image looking_at_another looking_at_each_other lying_on_bed male male/male male_only male_penetrated male_penetrating male_penetrating_male monochrome monster monster_boy multiple_images on_bed on_side orange_balls orange_blush orange_body orange_penis orange_testicles papyrus papyrus_(undertale) papysans partially_colored penetration penis penis_in_anus profanity sans sans_(undertale) seme_papyrus sequence sequential sex sex_on_bed sibling_incest siblings skeleton sleeping sleeping_together supermuuh surprised surprised_expression sweat tall_image tears testicles text third-party_edit top_papyrus uke_sans undead under_blanket undertale undertale_(series) video_games waking_up yaoi
2010s 2017 2boys anal anal_penetration anal_sex animated_skeleton balls bed bedroom blanket blue_blush blue_body blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing comic comic_page comic_panel crying crying_with_eyes_open duo ectobody ectopenis fontcest glowing glowing_eye incest indoors intraspecies laying_on_bed lying_on_bed male male/male male_only male_penetrated male_penetrating male_penetrating_male monochrome monster monster_boy on_bed on_side orange_balls orange_blush orange_body orange_penis orange_testicles papyrus papyrus_(undertale) papysans partially_colored penetration penis penis_in_anus sans sans_(undertale) seme_papyrus sequence sequential sex sex_on_bed sibling_incest siblings skeleton supermuuh tears testicles top_papyrus uke_sans undead undertale undertale_(series) yaoi
2010s 2017 2boys anal anal_penetration anal_sex animated_skeleton balls bed bedroom blanket blue_blush blue_body blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothing comic comic_page comic_panel crying crying_with_eyes_open duo ectobody ectopenis fontcest glowing glowing_eye incest indoors intraspecies laying_on_bed lying_on_bed male male/male male_only male_penetrated male_penetrating male_penetrating_male monochrome monster monster_boy on_bed on_side orange_balls orange_blush orange_body orange_penis orange_testicles papyrus papyrus_(undertale) papysans partially_colored penetration penis penis_in_anus sans sans_(undertale) seme_papyrus sequence sequential sex sex_on_bed sibling_incest siblings skeleton supermuuh tears testicles top_papyrus uke_sans undead undertale undertale_(series) yaoi
2010s 2017 2boys animated_skeleton bed bedroom blanket blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel crying crying_with_eyes_open duo fontcest glowing glowing_eye incest indoors laying_on_bed looking_at_another looking_at_each_other lying_on_bed male male/male male_only monochrome on_bed orange_blush papyrus papyrus_(undertale) papysans partially_colored profanity sans sans_(undertale) seme_papyrus sequence sequential skeleton supermuuh tears text top_papyrus uke_sans undead undertale undertale_(series) waking_up yaoi
2010s 2017 2boys animated_skeleton bed bedroom blanket blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel crying crying_with_eyes_open duo fontcest glowing glowing_eye incest indoors laying_on_bed looking_at_another looking_at_each_other lying_on_bed male male/male male_only monochrome on_bed orange_blush papyrus papyrus_(undertale) papysans partially_colored profanity sans sans_(undertale) seme_papyrus sequence sequential skeleton supermuuh tears text top_papyrus uke_sans undead undertale undertale_(series) waking_up yaoi
2010s 2017 2boys animated_skeleton bed bedroom biting_pillow blanket blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel crying duo fontcest glowing glowing_genitalia groping groping_from_behind hand_in_pants hand_under_clothes incest indoors laying_on_bed lying_on_bed male male/male male_only monochrome on_bed papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential skeleton supermuuh surprised surprised_expression tears top_papyrus uke_sans undead under_blanket undertale undertale_(series) yaoi
2010s 2017 2boys animated_skeleton bed bedroom biting_pillow blanket blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel crying duo fontcest glowing glowing_genitalia groping groping_from_behind hand_in_pants hand_under_clothes incest indoors laying_on_bed lying_on_bed male male/male male_only monochrome on_bed papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential skeleton supermuuh surprised surprised_expression tears top_papyrus uke_sans undead under_blanket undertale undertale_(series) yaoi
2010s 2017 2boys animated_skeleton bed bedroom biting_pillow blanket blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel crying duo fontcest glowing glowing_genitalia incest indoors laying_on_bed lying_on_bed male male/male male_only monochrome on_bed papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential skeleton supermuuh tears top_papyrus uke_sans undead under_blanket undertale undertale_(series) yaoi
2010s 2017 2boys animated_skeleton bed bedroom biting_pillow blanket blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel crying duo fontcest glowing glowing_genitalia incest indoors laying_on_bed lying_on_bed male male/male male_only monochrome on_bed papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential skeleton supermuuh tears top_papyrus uke_sans undead under_blanket undertale undertale_(series) yaoi
2010s 2017 2boys animated_skeleton bed bedroom biting_pillow blanket blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel crying duo fontcest glowing glowing_genitalia incest indoors laying_on_bed lying_on_bed male male/male male_only monochrome on_bed papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential skeleton supermuuh tears top_papyrus uke_sans undead under_blanket undertale undertale_(series) yaoi
2010s 2017 2boys animated_skeleton bed bedroom biting_pillow blanket blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel crying duo fontcest glowing glowing_genitalia incest indoors laying_on_bed lying_on_bed male male/male male_only monochrome on_bed papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential skeleton supermuuh tears top_papyrus uke_sans undead under_blanket undertale undertale_(series) yaoi
2010s 2017 2boys animated_skeleton bed bedroom blanket bottom_sans brother brother/brother brother_and_brother brothers bulge clothed clothing comic comic_page comic_panel dry_humping duo erection erection_under_clothes fontcest glowing glowing_genitalia humping incest indoors intraspecies laying_on_bed lying_on_bed male male/male male_only monochrome monster monster_boy on_bed papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential sibling_incest siblings skeleton supermuuh top_papyrus uke_sans undead under_blanket undertale undertale_(series) unseen_male_face yaoi
2010s 2017 2boys animated_skeleton bed bedroom blanket bottom_sans brother brother/brother brother_and_brother brothers bulge clothed clothing comic comic_page comic_panel dry_humping duo erection erection_under_clothes fontcest glowing glowing_genitalia humping incest indoors intraspecies laying_on_bed lying_on_bed male male/male male_only monochrome monster monster_boy on_bed papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential sibling_incest siblings skeleton supermuuh top_papyrus uke_sans undead under_blanket undertale undertale_(series) unseen_male_face yaoi
2010s 2017 2boys animated_skeleton bed bedroom blanket bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel duo fontcest glowing glowing_genitalia incest indoors laying_on_bed lying_on_bed male male/male male_only monochrome on_bed papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential skeleton supermuuh top_papyrus uke_sans undead under_blanket undertale undertale_(series) unseen_male_face yaoi
2010s 2017 2boys animated_skeleton bed bedroom blanket bottom_sans brother brother/brother brother_and_brother brothers clothed clothing comic comic_page comic_panel duo fontcest glowing glowing_genitalia incest indoors laying_on_bed lying_on_bed male male/male male_only monochrome on_bed papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sequence sequential skeleton supermuuh top_papyrus uke_sans undead under_blanket undertale undertale_(series) unseen_male_face yaoi
1boy 1cuntboy 2020s 2023 2d 2d_(artwork) animated_skeleton balls blue_clitoris blue_pussy blush blushing_male bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clitoris clothed clothing cuntboy cuntboy_penetrated cuntboysub digital_media_(artwork) dominant dominant_male drooling duo ectopenis ectoplasm ectopussy english_text fontcest from_behind_position genitals gloves glowing glowing_genitalia glowing_penis grabbing_legs grey_background incest intraspecies legs_apart male male/cuntboy male_penetrating male_penetrating_cuntboy maledom mellouwana monster monster_boy orange_balls orange_penis orange_testicles papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis pussy red_gloves sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background skeleton smiling smiling_at_viewer speech_bubble submissive submissive_cuntboy talking talking_to_another talking_to_viewer testicles text text_bubble thank_you top_papyrus 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 balls blue_clitoris blue_pussy blush blushing_male bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers clitoris clothed clothing cuntboy cuntboy_penetrated cuntboysub digital_media_(artwork) dominant dominant_male drooling duo ectopenis ectoplasm ectopussy english_text fontcest from_behind_position genitals gloves glowing glowing_genitalia glowing_penis grabbing_legs grey_background incest intraspecies legs_apart male male/cuntboy male_penetrating male_penetrating_cuntboy maledom mellouwana monster monster_boy orange_balls orange_penis orange_testicles papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis pussy red_gloves sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background skeleton smiling smiling_at_viewer speech_bubble submissive submissive_cuntboy talking talking_to_another talking_to_viewer testicles text text_bubble thank_you top_papyrus uke_sans undead undertale undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games yaoi
1boy 2d 2d_(artwork) animated_skeleton arm_support biting_clothes biting_shirt blue_blush blue_penis blush bulge bulge_under_clothes digital_media_(artwork) doiduh ectopenis glowing glowing_genitalia glowing_penis looking_up male male_only malesub monster monster_boy penis penis_bulge penis_peek precum sans sans_(undertale) skeleton solo_male source_request submissive submissive_male sweat undead undertale undertale_(series) video_game_character video_games white_background
1boy 2d 2d_(artwork) animated_skeleton arm_support biting_clothes biting_shirt blue_blush blue_penis blush bulge bulge_under_clothes digital_media_(artwork) doiduh ectopenis glowing glowing_genitalia glowing_penis looking_up male male_only malesub monster monster_boy penis penis_bulge penis_peek precum sans sans_(undertale) skeleton solo_male source_request submissive submissive_male sweat undead undertale undertale_(series) video_game_character video_games white_background
1boy after_masturbation animated_skeleton artist_request blue_penis clothed clothing comic_sans cum cum_on_clothes cum_on_self ectopenis glowing glowing_eye glowing_genitalia glowing_penis hooded_jacket hoodie jacket male male_only monochrome monster partially_colored sans sans_(undertale) skeleton solo_male sweat text trembling undead undertale undertale_(series)
1boy after_masturbation animated_skeleton artist_request blue_penis clothed clothing comic_sans cum cum_on_clothes cum_on_self ectopenis glowing glowing_eye glowing_genitalia glowing_penis hooded_jacket hoodie jacket male male_only monochrome monster partially_colored sans sans_(undertale) skeleton solo_male sweat text trembling undead undertale undertale_(series)
1boy 2010s 2017 animated_skeleton arms_behind_back blue_jacket blush bondage bottom_sans bound bound_arms bulge bulge_through_clothing bulge_under_clothes chubby chubby_male clothed clothing drooling erection erection_under_clothes glowing glowing_genitalia jacket male male_focus male_only malesub monster off_shoulder off_shoulders one_eye_closed restrained restraints sans sans_(undertale) skeleton solo_male submissive submissive_male tasty-haram tied_up uke_sans undead undertale undertale_(series)
1boy 2010s 2017 animated_skeleton arms_behind_back blue_jacket blush bondage bottom_sans bound bound_arms bulge bulge_through_clothing bulge_under_clothes chubby chubby_male clothed clothing drooling erection erection_under_clothes glowing glowing_genitalia jacket male male_focus male_only malesub monster off_shoulder off_shoulders one_eye_closed restrained restraints sans sans_(undertale) skeleton solo_male submissive submissive_male tasty-haram tied_up uke_sans undead undertale undertale_(series)
1girl a.k.i._(street_fighter) ass ass_focus big_ass bubble_butt buttplug capcom dat_ass dumptruck_ass fat_ass female_only full_of_gas glowing glowing_eyes huge_ass hyper hyper_ass ignantastro insanely_hot large_ass looking_at_viewer looking_back massive_ass nude nude_female pussy sexy sexy_ass smelly_ass smelly_pussy spread_ass spreading street_fighter street_fighter_6 text_box thick_ass thick_thighs white_hair wide_hips
1girl a.k.i._(street_fighter) ass ass_focus big_ass bubble_butt buttplug capcom dat_ass dumptruck_ass fat_ass female_only full_of_gas glowing glowing_eyes huge_ass hyper hyper_ass ignantastro insanely_hot large_ass looking_at_viewer looking_back massive_ass nude nude_female pussy sexy sexy_ass smelly_ass smelly_pussy spread_ass spreading street_fighter street_fighter_6 text_box thick_ass thick_thighs white_hair wide_hips
2010s 2019 2boys animated_skeleton arm_support beetleevil blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers closed_eyes clothed clothing crotch_rub duo ectotongue erection erection_under_clothes evilbeetle fontcest glowing glowing_genitalia grey_background grope_from_behind groping groping_from_behind hand_on_crotch hand_under_clothes hand_under_shirt humanoid incest intraspecies licking licking_neck male male/male male_focus male_only monochrome monster monster_boy one_eye_closed orange_blush orange_tongue pants papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sibling_incest siblings simple_background skeleton tongue top_papyrus touching_crotch uke_sans undead undertale undertale_(series) yaoi
2010s 2019 2boys animated_skeleton arm_support beetleevil blue_blush blush bottom_sans brother brother/brother brother_and_brother brothers closed_eyes clothed clothing crotch_rub duo ectotongue erection erection_under_clothes evilbeetle fontcest glowing glowing_genitalia grey_background grope_from_behind groping groping_from_behind hand_on_crotch hand_under_clothes hand_under_shirt humanoid incest intraspecies licking licking_neck male male/male male_focus male_only monochrome monster monster_boy one_eye_closed orange_blush orange_tongue pants papyrus papyrus_(undertale) papysans partially_colored sans sans_(undertale) seme_papyrus sibling_incest siblings simple_background skeleton tongue top_papyrus touching_crotch uke_sans undead undertale undertale_(series) yaoi
1girl absurd_res all_fours anthro bat big_dom_small_sub big_penis bodily_fluids breasts comic deadlocked dialogue dominant duck_lock duo dust:_an_elysian_tail english_text faceless_character faceless_male fellatio fidget fidget_(elysian_tail) fur genital_fluids genitals glowing glowing_genitalia glowing_penis green_eyes high_res huge_penis humanoid_genitalia humanoid_penis imminent_sex it'll_never_fit larger_male licking male mammal membrane_(anatomy) membranous_wings moonblood nimbat nipples nude oral orange_body orange_fur penile penis penis_lick precum reptile scalie sereth sex size_difference smaller_female solo_focus sweat sweatdrop text tongue tongue_out unusual_anatomy unusual_genitalia unusual_penis vein veiny_penis wings
1girl absurd_res all_fours anthro bat big_dom_small_sub big_penis bodily_fluids breasts comic deadlocked dialogue dominant duck_lock duo dust:_an_elysian_tail english_text faceless_character faceless_male fellatio fidget fidget_(elysian_tail) fur genital_fluids genitals glowing glowing_genitalia glowing_penis green_eyes high_res huge_penis humanoid_genitalia humanoid_penis imminent_sex it'll_never_fit larger_male licking male mammal membrane_(anatomy) membranous_wings moonblood nimbat nipples nude oral orange_body orange_fur penile penis penis_lick precum reptile scalie sereth sex size_difference smaller_female solo_focus sweat sweatdrop text tongue tongue_out unusual_anatomy unusual_genitalia unusual_penis vein veiny_penis wings
2022 2boys animated_skeleton blush blushing_male bonerut brothers bulge clothed clothing couch duo erection_under_clothes glowing glowing_genitalia glowing_penis implied_incest implied_yaoi legs_apart male male_only monster orange_blush papyrus_(undertale) sans_(undertale) siblings sitting sitting_on_couch size_difference skeleton sleeping undead undertale undertale_(series)
2022 2boys animated_skeleton blush blushing_male bonerut brothers bulge clothed clothing couch duo erection_under_clothes glowing glowing_genitalia glowing_penis implied_incest implied_yaoi legs_apart male male_only monster orange_blush papyrus_(undertale) sans_(undertale) siblings sitting sitting_on_couch size_difference skeleton sleeping undead undertale undertale_(series)
animated_skeleton artist_name ass blue_blush blue_tongue blush bottom_sans butt clothed clothing crotch_focus glowing glowing_genitalia grabbing_own_ass heart-shaped_pupils heart_eyes hooded_jacket hoodie jacket legs_apart legs_spread looking_at_viewer male_only monochrome monster pants partially_colored sans sans_(undertale) simple_background skeleton solo submissive titleze tongue uke_sans undead undertale undertale_(series)
animated_skeleton artist_name ass blue_blush blue_tongue blush bottom_sans butt clothed clothing crotch_focus glowing glowing_genitalia grabbing_own_ass heart-shaped_pupils heart_eyes hooded_jacket hoodie jacket legs_apart legs_spread looking_at_viewer male_only monochrome monster pants partially_colored sans sans_(undertale) simple_background skeleton solo submissive titleze tongue uke_sans undead undertale undertale_(series)
animated_skeleton bottom_sans bottomless cum cum_on_lower_body glowing jacket looking_at_viewer male_only monster partially_clothed sans sans_(undertale) skeleton solo submissive topwear topwear_only uke_sans undead undertale undertale_(series) unknown_artist
animated_skeleton bottom_sans bottomless cum cum_on_lower_body glowing jacket looking_at_viewer male_only monster partially_clothed sans sans_(undertale) skeleton solo submissive topwear topwear_only uke_sans undead undertale undertale_(series) unknown_artist
1boy 2010s 2016 2d 2d_(artwork) animated_skeleton blue_blush blush bottom_sans bound bound_wrists bulge clothed digital_media_(artwork) drooling erection erection_under_clothes glowing glowing_genitalia grey_background itsdunklesans jacket kneel kneeling looking_at_viewer male male_only malesub monster profanity restrained restraints sans sans_(undertale) simple_background skeleton solid_color_background solo solo_male submissive submissive_male tears text tied_up uke_sans undead undertale undertale_(series) video_game_character video_games
1boy 2010s 2016 2d 2d_(artwork) animated_skeleton blue_blush blush bottom_sans bound bound_wrists bulge clothed digital_media_(artwork) drooling erection erection_under_clothes glowing glowing_genitalia grey_background itsdunklesans jacket kneel kneeling looking_at_viewer male male_only malesub monster profanity restrained restraints sans sans_(undertale) simple_background skeleton solid_color_background solo solo_male submissive submissive_male tears text tied_up uke_sans undead undertale undertale_(series) video_game_character video_games
1boy 2010s 2016 2d 2d_(artwork) animated_skeleton blue_blush blush bottom_sans bulge clothed clothed_male clothing collar collar_and_leash digital_media_(artwork) drooling erection erection_under_clothes fully_clothed glowing glowing_genitalia hands_behind_head hooded_jacket hoodie itsdunklesans jacket leash leash_and_collar legs_apart male male_focus male_only malesub monster partially_colored sans sans_(undertale) simple_background skeleton slippers solo_male submissive submissive_male sweat uke_sans undead undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2016 2d 2d_(artwork) animated_skeleton blue_blush blush bottom_sans bulge clothed clothed_male clothing collar collar_and_leash digital_media_(artwork) drooling erection erection_under_clothes fully_clothed glowing glowing_genitalia hands_behind_head hooded_jacket hoodie itsdunklesans jacket leash leash_and_collar legs_apart male male_focus male_only malesub monster partially_colored sans sans_(undertale) simple_background skeleton slippers solo_male submissive submissive_male sweat uke_sans undead undertale undertale_(series) video_game_character video_games white_background
1girl 1girl 3futas aged_up alien alien_(franchise) anal anal_insertion anal_sex anus ass back back_view balls big_ass big_ass big_balls big_penis body_invasion candle_in_ass candle_insertion candle_light cock-tail condom condom_filling condom_on_penis cum cum_in_ass cum_inside dickgirl erection exposed_ass exposed_penis exposed_pussy facehugger futa_sans_pussy futanari futanari_on_futanari futanari_with_futanari glowing glowing_cum huge_ass human lana_loud large_penis light-skinned_female light-skinned_futanari light_skin lisa_loud lola_loud long_penis lucy_loud multiple_girls nickelodeon nude object_insertion pale_skin penis pentagram_tattoo perineum pierced_pussy piercing piercings pussy pussy_lips pussy_outside radioactive_cum recycle_bin semen_in_anus sex sperm stuck stuck_in_object taint tentacle tentacles_coming_out_of_the_anus the_loud_house trembling uranium uranium_bar very_long_penis xsherlock420
1girl 1girl 3futas aged_up alien alien_(franchise) anal anal_insertion anal_sex anus ass back back_view balls big_ass big_ass big_balls big_penis body_invasion candle_in_ass candle_insertion candle_light cock-tail condom condom_filling condom_on_penis cum cum_in_ass cum_inside dickgirl erection exposed_ass exposed_penis exposed_pussy facehugger futa_sans_pussy futanari futanari_on_futanari futanari_with_futanari glowing glowing_cum huge_ass human lana_loud large_penis light-skinned_female light-skinned_futanari light_skin lisa_loud lola_loud long_penis lucy_loud multiple_girls nickelodeon nude object_insertion pale_skin penis pentagram_tattoo perineum pierced_pussy piercing piercings pussy pussy_lips pussy_outside radioactive_cum recycle_bin semen_in_anus sex sperm stuck stuck_in_object taint tentacle tentacles_coming_out_of_the_anus the_loud_house trembling uranium uranium_bar very_long_penis xsherlock420
1girl 2d a-maze-in-g amazeing666 armor armored_boots armour artist_name bad_id bad_twitter_id big_breasts blue_skin breasts cameltoe covered_eyes dark_blue_hair deltarune digital_media female female_human female_only fully_clothed glowing glowing_eye human_only kris_(dark_world_form)_(deltarune) kris_(deltarune) kris_(female)_(deltarune) legs_apart legs_spread long_boots looking_at_viewer pose presenting_pussy pussy pussy_outline pussy_visible_through_clothes red_eyes scarf skin_tight_suit smile solo solo_female solo_human spread_legs spreading thick_thighs third-party_source undertale_(series) video_game_character video_games
1girl 2d a-maze-in-g amazeing666 armor armored_boots armour artist_name bad_id bad_twitter_id big_breasts blue_skin breasts cameltoe covered_eyes dark_blue_hair deltarune digital_media female female_human female_only fully_clothed glowing glowing_eye human_only kris_(dark_world_form)_(deltarune) kris_(deltarune) kris_(female)_(deltarune) legs_apart legs_spread long_boots looking_at_viewer pose presenting_pussy pussy pussy_outline pussy_visible_through_clothes red_eyes scarf skin_tight_suit smile solo solo_female solo_human spread_legs spreading thick_thighs third-party_source undertale_(series) video_game_character video_games
1boy 2010s 2018 animated_skeleton blue_blush blush bodily_fluids fluids glowing implied_object_insertion male male_only monster sans sans_(undertale) skeleton solo solo_male tears top-down_bottom-up undead undertale undertale_(series)
1boy 2010s 2018 animated_skeleton blue_blush blush bodily_fluids fluids glowing implied_object_insertion male male_only monster sans sans_(undertale) skeleton solo solo_male tears top-down_bottom-up undead undertale undertale_(series)
2010s 2015 2boys 2d 2d_(artwork) animated_skeleton artist_logo blue_eye blue_tongue clothed/nude clothed_male digital_media_(artwork) dominant dominant_male duo ectotongue elemental_creature elemental_humanoid english_text fellatio fire_elemental glowing glowing_eye grillby grillsans humanoid 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 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
2010s 2015 2boys 2d 2d_(artwork) animated_skeleton artist_logo blue_eye blue_tongue clothed/nude clothed_male digital_media_(artwork) dominant dominant_male duo ectotongue elemental_creature elemental_humanoid english_text fellatio fire_elemental glowing glowing_eye grillby grillsans humanoid 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 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
1boy 2020s 2022 2d 2d_(artwork) animated_skeleton arm_support aroused artist_name artist_signature blue_blush blue_penis blush clothed clothed_male comic_sans cussing digital_media_(artwork) ectopenis english_text erection fallen_ghost_angel_(artist) genitals gloves gloves_removed glowing glowing_genitalia glowing_penis heavy_breathing looking_at_genitalia looking_at_own_penis looking_at_penis looking_down male male_only monster monster_boy penis penis_out precum precum_string profanity sans sans_(undertale) simple_background sitting skeleton slippers solo_male speech_bubble swearing text thought_bubble throbbing_penis undead undertale undertale_(series) video_game_character video_games visible_breath
1boy 2020s 2022 2d 2d_(artwork) animated_skeleton arm_support aroused artist_name artist_signature blue_blush blue_penis blush clothed clothed_male comic_sans cussing digital_media_(artwork) ectopenis english_text erection fallen_ghost_angel_(artist) genitals gloves gloves_removed glowing glowing_genitalia glowing_penis heavy_breathing looking_at_genitalia looking_at_own_penis looking_at_penis looking_down male male_only monster monster_boy penis penis_out precum precum_string profanity sans sans_(undertale) simple_background sitting skeleton slippers solo_male speech_bubble swearing text thought_bubble throbbing_penis undead undertale undertale_(series) video_game_character video_games visible_breath
1:1 1:1_aspect_ratio 1boy 2d 2d_(artwork) animated_skeleton balls blue_blush blue_hoodie blue_jacket blue_penis blue_testicles blush bottomless bottomless_male clothed comic_sans digital_media_(artwork) ectopenis ectoplasm english_text fallen_ghost_angel_(artist) genitals glowing glowing_genitalia glowing_penis grabbing_own_penis hi_res high_res high_resolution hires hooded_jacket hoodie jacket looking_at_genitalia looking_at_own_penis looking_at_penis looking_down lying_on_back male male_masturbation male_only masturbation monster monster_boy on_back penile_masturbation penis pillow precum sans sans_(undertale) skeleton socks solo_male speech_bubble sweat talking_to_self testicles text twitter undead undertale undertale_(series) video_game_character video_games
1:1 1:1_aspect_ratio 1boy 2d 2d_(artwork) animated_skeleton balls blue_blush blue_hoodie blue_jacket blue_penis blue_testicles blush bottomless bottomless_male clothed comic_sans digital_media_(artwork) ectopenis ectoplasm english_text fallen_ghost_angel_(artist) genitals glowing glowing_genitalia glowing_penis grabbing_own_penis hi_res high_res high_resolution hires hooded_jacket hoodie jacket looking_at_genitalia looking_at_own_penis looking_at_penis looking_down lying_on_back male male_masturbation male_only masturbation monster monster_boy on_back penile_masturbation penis pillow precum sans sans_(undertale) skeleton socks solo_male speech_bubble sweat talking_to_self testicles text twitter undead undertale undertale_(series) video_game_character video_games
1:1 1:1_aspect_ratio 1boy 2d 2d_(artwork) abs absurd_res anthro anthro_only asriel_dreemurr asriel_dreemurr_(god_of_hyperdeath) athletic balls bedroom_eyes big_penis black_penis black_sclera body_markings boss_monster bovid caprine claws digital_media_(artwork) ears_down enticing face_markings feet first_person_view floppy_ears fur furry furry_male furry_only genitals glowing glowing_eyes goat goat_boy gradient_penis grey_background hair high_res horn horns hybrid inviting looking_at_viewer m_legs male male_anthro male_only mammal markings monster monster_boy narrowed_eyes nude nude_anthro nude_male penis pivoted_ears pockyco presenting seductive simple_background snout solid_color_background solo solo_anthro solo_male tail talking_to_viewer thick_thighs third-party_source tongue tongue_out undertale undertale_(series) unfinished video_game_character video_games white_body white_fur white_penis
1:1 1:1_aspect_ratio 1boy 2d 2d_(artwork) abs absurd_res anthro anthro_only asriel_dreemurr asriel_dreemurr_(god_of_hyperdeath) athletic balls bedroom_eyes big_penis black_penis black_sclera body_markings boss_monster bovid caprine claws digital_media_(artwork) ears_down enticing face_markings feet first_person_view floppy_ears fur furry furry_male furry_only genitals glowing glowing_eyes goat goat_boy gradient_penis grey_background hair high_res horn horns hybrid inviting looking_at_viewer m_legs male male_anthro male_only mammal markings monster monster_boy narrowed_eyes nude nude_anthro nude_male penis pivoted_ears pockyco presenting seductive simple_background snout solid_color_background solo solo_anthro solo_male tail talking_to_viewer thick_thighs third-party_source tongue tongue_out undertale undertale_(series) unfinished video_game_character video_games white_body white_fur white_penis
2016 2boys 2d animated_skeleton artist_name blanket blue_penis blush bottom_sans brother/brother brothers clothed digital_media dreaming duo ectopenis english_text erection erection_under_blanket fontcest food food_on_body gay glowing glowing_genitalia glowing_penis implied_incest incest letthesinwithinbegin male male/male male_only monster monster_boy nightcap papyrus_(undertale) papysans pasta penis sans_(undertale) sex siblings skeleton sleeping spaghetti teeth tentacle text third-party_source undead undertale undertale_(series) video_games wet_dream yaoi
2016 2boys 2d animated_skeleton artist_name blanket blue_penis blush bottom_sans brother/brother brothers clothed digital_media dreaming duo ectopenis english_text erection erection_under_blanket fontcest food food_on_body gay glowing glowing_genitalia glowing_penis implied_incest incest letthesinwithinbegin male male/male male_only monster monster_boy nightcap papyrus_(undertale) papysans pasta penis sans_(undertale) sex siblings skeleton sleeping spaghetti teeth tentacle text third-party_source undead undertale undertale_(series) video_games wet_dream yaoi
1boy 2d 2d_(artwork) absurd_res alternate_version_available ambiguous_gender anon anonymous bigger_male black_hair black_tongue bodily_fluids brick_wall carrying darkner deltarune deltarune_chapter_2 detailed_background digital_media_(artwork) duo glowing hair heart high_res human human_on_humanoid humanoid impodicko inside interspecies larger_male licking long_nose long_tongue looking_at_another looking_pleasured macro macro_male male male/ambiguous male_humanoid mammal micro micro_in_hand micro_on_macro micro_on_tongue open_mouth oral pointy_nose saliva seme_spamton size_difference smaller_ambiguous smaller_human spamton_g._spamton spamton_neo strings text textless textless_version tongue tongue_out tonguejob top_spamton undertale_(series) video_game_character video_games wall_(structure) wings
1boy 2d 2d_(artwork) absurd_res alternate_version_available ambiguous_gender anon anonymous bigger_male black_hair black_tongue bodily_fluids brick_wall carrying darkner deltarune deltarune_chapter_2 detailed_background digital_media_(artwork) duo glowing hair heart high_res human human_on_humanoid humanoid impodicko inside interspecies larger_male licking long_nose long_tongue looking_at_another looking_pleasured macro macro_male male male/ambiguous male_humanoid mammal micro micro_in_hand micro_on_macro micro_on_tongue open_mouth oral pointy_nose saliva seme_spamton size_difference smaller_ambiguous smaller_human spamton_g._spamton spamton_neo strings text textless textless_version tongue tongue_out tonguejob top_spamton undertale_(series) video_game_character video_games wall_(structure) wings
1boy 2d 2d_(artwork) absurd_res alternate_version_available ambiguous_gender anon anonymous bigger_male black_hair black_tongue bodily_fluids brick_wall carrying darkner deltarune deltarune_chapter_2 detailed_background dialogue_box digital_media_(artwork) duo english_text glowing hair heart hi_res human human_on_humanoid humanoid impodicko inside interspecies larger_male licking long_nose long_tongue looking_at_another looking_pleasured macro macro_male male male/ambiguous male_humanoid mammal micro micro_in_hand micro_on_macro micro_on_tongue open_mouth oral pointy_nose saliva seme_spamton size_difference smaller_ambiguous smaller_human spamton_g._spamton spamton_neo spoken_heart strings text third-party_source tongue tongue_out tonguejob top_spamton undertale_(series) video_game_character video_games wall_(structure) wings
1boy 2d 2d_(artwork) absurd_res alternate_version_available ambiguous_gender anon anonymous bigger_male black_hair black_tongue bodily_fluids brick_wall carrying darkner deltarune deltarune_chapter_2 detailed_background dialogue_box digital_media_(artwork) duo english_text glowing hair heart hi_res human human_on_humanoid humanoid impodicko inside interspecies larger_male licking long_nose long_tongue looking_at_another looking_pleasured macro macro_male male male/ambiguous male_humanoid mammal micro micro_in_hand micro_on_macro micro_on_tongue open_mouth oral pointy_nose saliva seme_spamton size_difference smaller_ambiguous smaller_human spamton_g._spamton spamton_neo spoken_heart strings text third-party_source tongue tongue_out tonguejob top_spamton undertale_(series) video_game_character video_games wall_(structure) wings
2010s 2015 2boys 2d animated_skeleton ball_gag big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_jacket blue_penis blue_tongue bottom_sans dark_background digital_media_(artwork) duo ectopenis ectotongue elemental_creature elemental_humanoid english_text fire_elemental gay genital_fluids genitals glasses glowing glowing_genitalia glowing_penis grillby grillsans handjob humanoid jacket larger_male male male/male male_only monster monster_boy mouth_gag open_mouth orange_body orgasm_denial penis precum rectangular_eyewear rectangular_glasses saliva sans sans_(undertale) scribble-secrets seme_grillby sitting skeleton small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom text tongue tongue_out top_grillby uke_sans undead undertale undertale_(series) white_background yaoi
2010s 2015 2boys 2d animated_skeleton ball_gag big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_jacket blue_penis blue_tongue bottom_sans dark_background digital_media_(artwork) duo ectopenis ectotongue elemental_creature elemental_humanoid english_text fire_elemental gay genital_fluids genitals glasses glowing glowing_genitalia glowing_penis grillby grillsans handjob humanoid jacket larger_male male male/male male_only monster monster_boy mouth_gag open_mouth orange_body orgasm_denial penis precum rectangular_eyewear rectangular_glasses saliva sans sans_(undertale) scribble-secrets seme_grillby sitting skeleton small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom text tongue tongue_out top_grillby uke_sans undead undertale undertale_(series) white_background yaoi
2010s 2015 2boys animated_skeleton arms_around_another arms_around_another's_neck arms_around_neck blue_blush blue_eye blue_tongue blush brother/brother brothers duo ectotongue fontcest gay glowing glowing_eye heart-shaped_pupils heart_eyes incest intraspecies laddinger making_out male male/male male_only monster monster_boy naked nude onomatopoeia orange_blush orange_eye orange_tongue papyrus papyrus_(undertale) papysans sans sans_(undertale) sibling_incest siblings simple_background skeleton sweat text undead undertale undertale_(series) upper_body white_background yaoi
2010s 2015 2boys animated_skeleton arms_around_another arms_around_another's_neck arms_around_neck blue_blush blue_eye blue_tongue blush brother/brother brothers duo ectotongue fontcest gay glowing glowing_eye heart-shaped_pupils heart_eyes incest intraspecies laddinger making_out male male/male male_only monster monster_boy naked nude onomatopoeia orange_blush orange_eye orange_tongue papyrus papyrus_(undertale) papysans sans sans_(undertale) sibling_incest siblings simple_background skeleton sweat text undead undertale undertale_(series) upper_body white_background yaoi
1boy 1cuntboy 2010s 2015 2d 2d_(artwork) animated_skeleton artist_name artist_watermark blue_blush blue_eye blue_pussy blush bottom_sans brother/brother brothers clothed clothed/nude clothed_male cuntboy cuntboy_focus cuntboysub digital_media_(artwork) dominant_male duo ectopenis ectopussy english_text fontcest gay glowing glowing_eye glowing_genitalia glowing_penis glowing_pussy incest intraspecies laddinger leg_lift legs_up line_art lineart male male/cuntboy male_out_of_frame maledom monster monster_boy naked nude orange_penis papyrus papyrus_(undertale) papysans partial_male partially_colored penis pussy sans sans_(undertale) seme_papyrus sibling_incest siblings skeleton solo_focus submissive_cuntboy sweat text top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games watermark white_background yaoi
1boy 1cuntboy 2010s 2015 2d 2d_(artwork) animated_skeleton artist_name artist_watermark blue_blush blue_eye blue_pussy blush bottom_sans brother/brother brothers clothed clothed/nude clothed_male cuntboy cuntboy_focus cuntboysub digital_media_(artwork) dominant_male duo ectopenis ectopussy english_text fontcest gay glowing glowing_eye glowing_genitalia glowing_penis glowing_pussy incest intraspecies laddinger leg_lift legs_up line_art lineart male male/cuntboy male_out_of_frame maledom monster monster_boy naked nude orange_penis papyrus papyrus_(undertale) papysans partial_male partially_colored penis pussy sans sans_(undertale) seme_papyrus sibling_incest siblings skeleton solo_focus submissive_cuntboy sweat text top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games watermark white_background yaoi
1boy 2010s 2017 2d 2d_(artwork) absurd_res animated_skeleton artist_name bone clothed clothing clothing_undone digital_media_(artwork) genitals ghost glowing glowing_eyes glowing_penis hair high_res holding_camera holding_object lewis_pepper male male_only melle-d mellednsfw mystery_skulls penis penis_out pink_background pink_eyes pink_hair pink_penis pink_tongue see-through see-through_penis selfie simple_background skeleton solo_male spirit suit tongue tongue_out undead
1boy 2010s 2017 2d 2d_(artwork) absurd_res animated_skeleton artist_name bone clothed clothing clothing_undone digital_media_(artwork) genitals ghost glowing glowing_eyes glowing_penis hair high_res holding_camera holding_object lewis_pepper male male_only melle-d mellednsfw mystery_skulls penis penis_out pink_background pink_eyes pink_hair pink_penis pink_tongue see-through see-through_penis selfie simple_background skeleton solo_male spirit suit tongue tongue_out undead