xb popular

Tags

smaller sub

2boys 2d 2d_(artwork) animated_skeleton artist_name big_dom_small_sub bigger_dom bigger_dom_smaller_sub blue_blush blue_penis blue_tongue blush bonetrouble bottom_sans brother brother/brother brother_and_brother brothers clothed_male crying drawn drooling erect_penis erection erection_under_clothes fontcest handjob incest intraspecies kneel male male/male male_only monster monster_boy orange_blush pants_only papyrus papyrus_(undertale) papysans penis penis_grab saliva sans sans_(undertale) seme_papyrus shirtless sibling_incest siblings sitting skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom smaller_submissive tears top_papyrus topless topless_male traditional_media traditional_media_(artwork) uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2boys 2d 2d_(artwork) animated_skeleton artist_name big_dom_small_sub bigger_dom bigger_dom_smaller_sub blue_blush blue_penis blue_tongue blush bonetrouble bottom_sans brother brother/brother brother_and_brother brothers clothed_male crying drawn drooling erect_penis erection erection_under_clothes fontcest handjob incest intraspecies kneel male male/male male_only monster monster_boy orange_blush pants_only papyrus papyrus_(undertale) papysans penis penis_grab saliva sans sans_(undertale) seme_papyrus shirtless sibling_incest siblings sitting skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom smaller_submissive tears top_papyrus topless topless_male traditional_media traditional_media_(artwork) uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2015 2boys 2d 2d_(artwork) anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_eyes blue_penis blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers carrying carrying_another carrying_partner carrying_position clothed clothed_sex dakuyakko duo ectopenis erection fontcest genitals heart-shaped_pupils heart_eyes incest intraspecies larger_male larger_penetrating male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy orange_penis papyrus papyrus_(undertale) papysans penetration penis sans sans_(undertale) seme_papyrus sex sex_through_clothes sex_through_clothing sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom solo_focus stand_and_carry_position third-party_source top_papyrus tumblr_username uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games white_background yaoi
2010s 2015 2boys 2d 2d_(artwork) anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_eyes blue_penis blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers carrying carrying_another carrying_partner carrying_position clothed clothed_sex dakuyakko duo ectopenis erection fontcest genitals heart-shaped_pupils heart_eyes incest intraspecies larger_male larger_penetrating male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy orange_penis papyrus papyrus_(undertale) papysans penetration penis sans sans_(undertale) seme_papyrus sex sex_through_clothes sex_through_clothing sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom solo_focus stand_and_carry_position third-party_source top_papyrus tumblr_username uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games white_background yaoi
1boy 1cuntboy 2d 2d_(artwork) animated_skeleton apron big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_pussy blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clitoris comic comic_page comic_panel cuntboy cuntboy_penetrated digital_media_(artwork) duo ectopenis ectopussy eli-sin-g english_text fontcest from_front_position genitals incest intraspecies kolesjoie larger_male larger_penetrating male male/cuntboy male_focus male_penetrating male_penetrating_cuntboy monochrome monster monster_boy on_counter onomatopoeia orange_penis papyrus papyrus_(undertale) papysans penetration penis pussy sans sans_(undertale) seme_papyrus sequence sequential sex sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spot_color stealth_sex text text_bubble top_papyrus uke_sans undead undertale undertale_(series) vaginal video_game_character video_games yaoi
1boy 1cuntboy 2d 2d_(artwork) animated_skeleton apron big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_pussy blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clitoris comic comic_page comic_panel cuntboy cuntboy_penetrated digital_media_(artwork) duo ectopenis ectopussy eli-sin-g english_text fontcest from_front_position genitals incest intraspecies kolesjoie larger_male larger_penetrating male male/cuntboy male_focus male_penetrating male_penetrating_cuntboy monochrome monster monster_boy on_counter onomatopoeia orange_penis papyrus papyrus_(undertale) papysans penetration penis pussy sans sans_(undertale) seme_papyrus sequence sequential sex sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spot_color stealth_sex text text_bubble top_papyrus uke_sans undead undertale undertale_(series) vaginal video_game_character video_games yaoi
1boy almost_caught animated_skeleton anthro big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed comic comic_page comic_panel ectopenis eli-sin-g english_text female fontcest frisk frisk_(undertale) from_front_position grabbing_leg human incest intraspecies kitchen kolesjoie larger_male larger_penetrating leg_grab male male_focus male_penetrating monochrome monster monster_boy orange_blush orange_penis papyrus papyrus_(undertale) papysans penetration sans sans_(undertale) seme_papyrus sequence sequential sex sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spot_color stealth_sex text text_bubble top_papyrus toriel uke_sans undead undertale undertale_(series) unseen_character yaoi
1boy almost_caught animated_skeleton anthro big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed comic comic_page comic_panel ectopenis eli-sin-g english_text female fontcest frisk frisk_(undertale) from_front_position grabbing_leg human incest intraspecies kitchen kolesjoie larger_male larger_penetrating leg_grab male male_focus male_penetrating monochrome monster monster_boy orange_blush orange_penis papyrus papyrus_(undertale) papysans penetration sans sans_(undertale) seme_papyrus sequence sequential sex sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spot_color stealth_sex text text_bubble top_papyrus toriel uke_sans undead undertale undertale_(series) unseen_character yaoi
3girls alphys animated_skeleton anthro big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers comic comic_page comic_panel dinosaur dinosaur_girl eli-sin-g english_text female female_anthro fontcest frisk frisk_(undertale) from_behind_position grabbing_arms grabbing_from_behind human incest intraspecies kitchen kolesjoie larger_male larger_penetrating lizard lizard_girl male male_focus male_penetrating monochrome monster monster_boy monster_girl papyrus papyrus_(undertale) papysans penetration penetration_from_behind reptile reptile_girl sans sans_(undertale) scalie scalie_female seme_papyrus sequence sequential sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spot_color stealth_sex text text_bubble top_papyrus toriel uke_sans undead undertale undertale_(series) undyne yaoi
3girls alphys animated_skeleton anthro big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blush bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers comic comic_page comic_panel dinosaur dinosaur_girl eli-sin-g english_text female female_anthro fontcest frisk frisk_(undertale) from_behind_position grabbing_arms grabbing_from_behind human incest intraspecies kitchen kolesjoie larger_male larger_penetrating lizard lizard_girl male male_focus male_penetrating monochrome monster monster_boy monster_girl papyrus papyrus_(undertale) papysans penetration penetration_from_behind reptile reptile_girl sans sans_(undertale) scalie scalie_female seme_papyrus sequence sequential sex sex_from_behind sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble spot_color stealth_sex text text_bubble top_papyrus toriel uke_sans undead undertale undertale_(series) undyne yaoi
2d 2d_(artwork) animated_skeleton apron big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed crazy_eyes crazy_smile digital_media_(artwork) duo english_text hair hair_over_one_eye humanoid humanoid_robot mettasans mettaton mettaton_ex monster onomatopoeia punishment robot robot_boy robot_humanoid sans sans_(undertale) seme_mettaton skeleton sketch small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom smirk spanking spanking_ass spanking_butt sweat text top_mettaton uke_sans undead undertale undertale_(series) video_game_character video_games white_background
2d 2d_(artwork) animated_skeleton apron big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed crazy_eyes crazy_smile digital_media_(artwork) duo english_text hair hair_over_one_eye humanoid humanoid_robot mettasans mettaton mettaton_ex monster onomatopoeia punishment robot robot_boy robot_humanoid sans sans_(undertale) seme_mettaton skeleton sketch small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom smirk spanking spanking_ass spanking_butt sweat text top_mettaton uke_sans undead undertale undertale_(series) video_game_character video_games white_background
... 2d 2d_(artwork) animated_skeleton apron big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed digital_media_(artwork) duo english_text glowing_eye hair hair_over_one_eye humanoid humanoid_robot imminent_spanking mettasans mettaton mettaton_ex monster punishment robot robot_boy robot_humanoid sans sans_(undertale) seme_mettaton skeleton sketch small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom smirk text top_mettaton uke_sans undead undertale undertale_(series) video_game_character video_games white_background
... 2d 2d_(artwork) animated_skeleton apron big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed digital_media_(artwork) duo english_text glowing_eye hair hair_over_one_eye humanoid humanoid_robot imminent_spanking mettasans mettaton mettaton_ex monster punishment robot robot_boy robot_humanoid sans sans_(undertale) seme_mettaton skeleton sketch small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom smirk text top_mettaton uke_sans undead undertale undertale_(series) video_game_character video_games white_background
2d 2d_(artwork) animated_skeleton apron big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed digital_media_(artwork) duo english_text hair hair_over_one_eye humanoid humanoid_robot imminent_spanking mettasans mettaton mettaton_ex monster punishment robot robot_boy robot_humanoid sans sans_(undertale) seme_mettaton skeleton sketch small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom text top_mettaton uke_sans undead undertale undertale_(series) video_game_character video_games white_background
2d 2d_(artwork) animated_skeleton apron big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed digital_media_(artwork) duo english_text hair hair_over_one_eye humanoid humanoid_robot imminent_spanking mettasans mettaton mettaton_ex monster punishment robot robot_boy robot_humanoid sans sans_(undertale) seme_mettaton skeleton sketch small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom text top_mettaton uke_sans undead undertale undertale_(series) video_game_character video_games white_background
2010s 2016 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bottom_sans digital_media_(artwork) hair hoodie humanoid humanoid_robot larger_male male male/male male_only maledom mettasans mettaton mettaton_ex monster penis robot robot_boy robot_humanoid robotic_penis sans sans_(undertale) seme_mettaton skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom top_mettaton uke_sans undead undertale undertale_(series) unknown_artist video_game_character video_games wearing_others_clothes yaoi
2010s 2016 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bottom_sans digital_media_(artwork) hair hoodie humanoid humanoid_robot larger_male male male/male male_only maledom mettasans mettaton mettaton_ex monster penis robot robot_boy robot_humanoid robotic_penis sans sans_(undertale) seme_mettaton skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom top_mettaton uke_sans undead undertale undertale_(series) unknown_artist video_game_character video_games wearing_others_clothes yaoi
2010s 2015 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_eye blue_tongue boots bottom_sans box digital_media_(artwork) dominant dominant_male domination english_text footwear glowing_eyes hair hair_over_one_eye high_heel_boots humanoid humanoid_robot larger_male licking licking_leg male male/male male_only maledom malesub mettasans mettaton mettaton_ex monster nude nude_male penis pink_boots pink_eyes pink_glans pink_high_heel_boots pink_tongue robot robot_boy robot_humanoid robotic_penis sans sans_(undertale) seme_mettaton shoes simple_background skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom solid_color_background submissive submissive_male text tongue top_mettaton uke_sans undead undertale undertale_(series) unknown_artist video_game_character video_games yaoi
2010s 2015 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_eye blue_tongue boots bottom_sans box digital_media_(artwork) dominant dominant_male domination english_text footwear glowing_eyes hair hair_over_one_eye high_heel_boots humanoid humanoid_robot larger_male licking licking_leg male male/male male_only maledom malesub mettasans mettaton mettaton_ex monster nude nude_male penis pink_boots pink_eyes pink_glans pink_high_heel_boots pink_tongue robot robot_boy robot_humanoid robotic_penis sans sans_(undertale) seme_mettaton shoes simple_background skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom solid_color_background submissive submissive_male text tongue top_mettaton uke_sans undead undertale undertale_(series) unknown_artist video_game_character video_games yaoi
2010s 2017 2boys anal animated_skeleton arm_around_another's_neck arm_around_neck arm_around_shoulder big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blush bottom_sans bottomless brother/brother brother_penetrating_brother brothers carrying carrying_partner clothed drooling duo ectopenis fontcest gay grabbing_legs incest larger_male larger_penetrating larger_penetrating_smaller legs_apart legs_spread looking_down male male/male male_penetrating monster monster_boy papyrus papyrus_(undertale) papysans penetration reverse_suspended_congress sans sans_(undertale) seme_papyrus sex sibling_incest siblings sitting skeleton sketch small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom thebrosgf third-party_source top_papyrus tumblr uke_sans undead undertale undertale_(series) white_background yaoi
2010s 2017 2boys anal animated_skeleton arm_around_another's_neck arm_around_neck arm_around_shoulder big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blush bottom_sans bottomless brother/brother brother_penetrating_brother brothers carrying carrying_partner clothed drooling duo ectopenis fontcest gay grabbing_legs incest larger_male larger_penetrating larger_penetrating_smaller legs_apart legs_spread looking_down male male/male male_penetrating monster monster_boy papyrus papyrus_(undertale) papysans penetration reverse_suspended_congress sans sans_(undertale) seme_papyrus sex sibling_incest siblings sitting skeleton sketch small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom thebrosgf third-party_source top_papyrus tumblr uke_sans undead undertale undertale_(series) white_background yaoi
2020s 2023 2boys 2d 2d_(artwork) anal animated_skeleton arm_grab big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blush blush_lines boots bottom_sans bottomless bottomless_male brother/brother brother_and_brother brother_penetrating_brother brothers cussing dirty_talk drooling duo ectopenis english_text fontcest from_behind_position genital_fluids genitals gloves grabbing_arms grabbing_from_behind hi_res high_res highres humanoid incest intraspecies larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrating male_penetrating_male monochrome monster monster_boy nude nude_male onomatopoeia pants_around_one_leg papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penetration_from_behind penis penis_size_difference prison_guard_position profanity sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings simple_background size_difference skeleton sketch small_penis small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom swearing talking_to_another talking_to_partner text thrusting tired_but_horny_(artist) top_papyrus twitter uke_sans undead undertale undertale_(series) veiny_penis video_game_character video_games white_background yaoi
2020s 2023 2boys 2d 2d_(artwork) anal animated_skeleton arm_grab big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blush blush_lines boots bottom_sans bottomless bottomless_male brother/brother brother_and_brother brother_penetrating_brother brothers cussing dirty_talk drooling duo ectopenis english_text fontcest from_behind_position genital_fluids genitals gloves grabbing_arms grabbing_from_behind hi_res high_res highres humanoid incest intraspecies larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrating male_penetrating_male monochrome monster monster_boy nude nude_male onomatopoeia pants_around_one_leg papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penetration_from_behind penis penis_size_difference prison_guard_position profanity sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings simple_background size_difference skeleton sketch small_penis small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom swearing talking_to_another talking_to_partner text thrusting tired_but_horny_(artist) top_papyrus twitter uke_sans undead undertale undertale_(series) veiny_penis video_game_character video_games white_background yaoi
1:1 1:1_aspect_ratio 2020 2020s 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans crying crying_with_eyes_open darkner deltarune deltarune_chapter_1 duo gay king_spade larger_male male/male male_only monster non-con non-consensual noncon nonconsensual nude nude_male sans sans_(undertale) size_difference skeleton sketch small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom solo_focus stomach_mouth sympharin symphysins tears uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
1:1 1:1_aspect_ratio 2020 2020s 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans crying crying_with_eyes_open darkner deltarune deltarune_chapter_1 duo gay king_spade larger_male male/male male_only monster non-con non-consensual noncon nonconsensual nude nude_male sans sans_(undertale) size_difference skeleton sketch small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom solo_focus stomach_mouth sympharin symphysins tears uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
2020 2020s 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed darkner deltarune deltarune_chapter_1 duo gay imminent_rape king_spade larger_male male/male male_only monster non-con non-consensual noncon nonconsensual sans sans_(undertale) size_difference skeleton sketch small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom stomach_mouth sympharin symphysins uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2020 2020s 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed darkner deltarune deltarune_chapter_1 duo gay imminent_rape king_spade larger_male male/male male_only monster non-con non-consensual noncon nonconsensual sans sans_(undertale) size_difference skeleton sketch small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom stomach_mouth sympharin symphysins uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2020s 2022 2boys 2d 2d_(artwork) anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_tongue bodily_fluids boner_blossom bottom_sans bottomless bottomless_male brother/brother brother_penetrating_brother brothers crying crying_with_eyes_open digital_media_(artwork) drooling duo ectopenis ectoplasm english_text fluids fontcest gay heart-shaped_pupils heart_eyes humanoid incest intraspecies larger_male larger_penetrating male male/male male_only male_penetrated male_penetrating male_penetrating_male missionary_position monster monster_boy non-con non-consensual noncon nonconsensual nude nude_male orange_penis papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis rape safeword sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble sweat tears text text_bubble thrusting tongue top_papyrus twitter twitter_username uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2020s 2022 2boys 2d 2d_(artwork) anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_tongue bodily_fluids boner_blossom bottom_sans bottomless bottomless_male brother/brother brother_penetrating_brother brothers crying crying_with_eyes_open digital_media_(artwork) drooling duo ectopenis ectoplasm english_text fluids fontcest gay heart-shaped_pupils heart_eyes humanoid incest intraspecies larger_male larger_penetrating male male/male male_only male_penetrated male_penetrating male_penetrating_male missionary_position monster monster_boy non-con non-consensual noncon nonconsensual nude nude_male orange_penis papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis rape safeword sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble sweat tears text text_bubble thrusting tongue top_papyrus twitter twitter_username uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2020 2020s 2boys 2d 2d_(artwork) anal animated_skeleton big_cock big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller black_border blue_blush blush boner_blossom bottom_sans bottomless bottomless_male brother/brother brother_penetrating_brother brothers carrying carrying_partner chair clothed comic_sans commission_art covering_another's_mouth covering_mouth digital_media_(artwork) drooling duo ectoplasm english_text fontcest gay humanoid incest intraspecies larger_male larger_penetrating male male/male male_penetrating moaning monster monster_boy orange_blush outdoor_sex outdoors pants pants_around_one_leg papyrus papyrus_(font) papyrus_(undertale) papysans penetration public_sex reverse_suspended_congress sans sans_(undertale) seme_papyrus sex sibling_incest siblings sitting sitting_on_chair skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble sweat text text_bubble top_papyrus twitter twitter_username uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2020 2020s 2boys 2d 2d_(artwork) anal animated_skeleton big_cock big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller black_border blue_blush blush boner_blossom bottom_sans bottomless bottomless_male brother/brother brother_penetrating_brother brothers carrying carrying_partner chair clothed comic_sans commission_art covering_another's_mouth covering_mouth digital_media_(artwork) drooling duo ectoplasm english_text fontcest gay humanoid incest intraspecies larger_male larger_penetrating male male/male male_penetrating moaning monster monster_boy orange_blush outdoor_sex outdoors pants pants_around_one_leg papyrus papyrus_(font) papyrus_(undertale) papysans penetration public_sex reverse_suspended_congress sans sans_(undertale) seme_papyrus sex sibling_incest siblings sitting sitting_on_chair skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble sweat text text_bubble top_papyrus twitter twitter_username uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2020s 2022 2boys anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller bleeding blood blue_blush blush boner_blossom bottom_sans bottomless bottomless_male brother/brother brother_penetrating_brother brothers clothed crying crying_with_eyes_open defloration deflowering drooling duo ectopenis ectoplasm english_text fontcest gay grabbing_arms grey_background humanoid incest intraspecies larger_male larger_penetrating male male/male male_penetrating monochrome monster monster_boy non-con non-consensual noncon nonconsensual nude onomatopoeia orange_blush papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male partially_colored penetration penis rape sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background sitting skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble sweat tears text text_bubble top_papyrus twitter twitter_username uke_sans undead undertale undertale_(series) yaoi
2020s 2022 2boys anal animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller bleeding blood blue_blush blush boner_blossom bottom_sans bottomless bottomless_male brother/brother brother_penetrating_brother brothers clothed crying crying_with_eyes_open defloration deflowering drooling duo ectopenis ectoplasm english_text fontcest gay grabbing_arms grey_background humanoid incest intraspecies larger_male larger_penetrating male male/male male_penetrating monochrome monster monster_boy non-con non-consensual noncon nonconsensual nude onomatopoeia orange_blush papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male partially_colored penetration penis rape sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background sitting skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom speech_bubble sweat tears text text_bubble top_papyrus twitter twitter_username uke_sans undead undertale undertale_(series) yaoi
2020s 2021 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller bottom_sans brother/brother brother_penetrating_brother brothers cussing duo ectopenis english_text fontcest gay grabbing_head head_grab heart-shaped_pupils heart_eyes humanoid incest intraspecies irrumatio larger_male larger_penetrating male male/male male_penetrating monochrome monster monster_boy multiple_views papyrus papyrus_(undertale) papysans penetration penis profanity pushing_head_towards_fellatio sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background skeleton sketch sleeping small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom swearing text tired_but_horny_(artist) top_papyrus twitter uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi zzz
2020s 2021 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller bottom_sans brother/brother brother_penetrating_brother brothers cussing duo ectopenis english_text fontcest gay grabbing_head head_grab heart-shaped_pupils heart_eyes humanoid incest intraspecies irrumatio larger_male larger_penetrating male male/male male_penetrating monochrome monster monster_boy multiple_views papyrus papyrus_(undertale) papysans penetration penis profanity pushing_head_towards_fellatio sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background skeleton sketch sleeping small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom swearing text tired_but_horny_(artist) top_papyrus twitter uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi zzz
2010s 2016 2boys 2d 2d_(artwork) anal animated_skeleton artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller black_border blue_blush blue_penis blue_tongue blush bottom_sans bottomless brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_male cum cum_string cum_while_penetrated cum_while_penetrating cumming_together cumshot digital_media_(artwork) drooling duo ectopenis ectotongue ejaculation ejaculation_while_penetrated fontcest fully_clothed fully_clothed_male gay gay_sex genital_fluids genitals gloves heki_(miss60250) hooded_jacket hoodie incest intraspecies larger_penetrating larger_penetrating_smaller leg_grab leg_held_up legs_apart male male/male male_only male_penetrating_male monster monster_boy orange_blush orange_penis orgasm papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis red_gloves saliva sans sans_(undertale) seme_papyrus sex shirt_up sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom spread_legs submissive tears third-party_source tongue tongue_out top_papyrus tumblr twitter uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2016 2boys 2d 2d_(artwork) anal animated_skeleton artist_name big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller black_border blue_blush blue_penis blue_tongue blush bottom_sans bottomless brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed clothed_male cum cum_string cum_while_penetrated cum_while_penetrating cumming_together cumshot digital_media_(artwork) drooling duo ectopenis ectotongue ejaculation ejaculation_while_penetrated fontcest fully_clothed fully_clothed_male gay gay_sex genital_fluids genitals gloves heki_(miss60250) hooded_jacket hoodie incest intraspecies larger_penetrating larger_penetrating_smaller leg_grab leg_held_up legs_apart male male/male male_only male_penetrating_male monster monster_boy orange_blush orange_penis orgasm papyrus papyrus_(undertale) papysans partially_clothed partially_clothed_male penetration penis red_gloves saliva sans sans_(undertale) seme_papyrus sex shirt_up sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom spread_legs submissive tears third-party_source tongue tongue_out top_papyrus tumblr twitter uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2017 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blush bondage bottom_sans brother brothers clothed digital_media_(artwork) duo eggford erection erection_under_clothes fontcest genital_fluids incest kneel kneeling looking_at_another looking_back looking_back_at_another male male/male male_only monster orange_background papyrus papyrus_(undertale) papysans partial_male penis precum precum_through_clothing sans sans_(undertale) seme_papyrus simple_background skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom solo_focus tied_up top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
2010s 2017 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blush bondage bottom_sans brother brothers clothed digital_media_(artwork) duo eggford erection erection_under_clothes fontcest genital_fluids incest kneel kneeling looking_at_another looking_back looking_back_at_another male male/male male_only monster orange_background papyrus papyrus_(undertale) papysans partial_male penis precum precum_through_clothing sans sans_(undertale) seme_papyrus simple_background skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom solo_focus tied_up top_papyrus tumblr uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
2010s 2015 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_background blue_penis bottom_sans brother_penetrating_brother brothers clothed clothed/nude digital_media_(artwork) duo duplicate ectopenis fontcest gay grabbing_from_behind grabbing_mouth incest larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy noxiousaberration nude open_mouth orange_penis papyrus papyrus_(undertale) papysans penis sans sans_(undertale) seme_papyrus sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom solo_focus tongue tongue_grab tongue_out top_papyrus uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
2010s 2015 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_background blue_penis bottom_sans brother_penetrating_brother brothers clothed clothed/nude digital_media_(artwork) duo duplicate ectopenis fontcest gay grabbing_from_behind grabbing_mouth incest larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy noxiousaberration nude open_mouth orange_penis papyrus papyrus_(undertale) papysans penis sans sans_(undertale) seme_papyrus sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom solo_focus tongue tongue_grab tongue_out top_papyrus uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
2boys 2d 2d_(artwork) 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_(artwork) drunk duo ectopenis english_text face_grab fontcest from_behind_position ganzooky gay grabbing_face highres hoodie incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller lying_on_snow lying_on_stomach male male/male male_only male_penetrating monster monster_boy nsfwsinningsans one_eye_closed orange_blush orange_penis outside pants_around_one_leg pants_pulled_down papyrus papyrus_(undertale) papysans penetration penetration_from_behind sans sans_(undertale) seme_papyrus 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 uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2boys 2d 2d_(artwork) 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_(artwork) drunk duo ectopenis english_text face_grab fontcest from_behind_position ganzooky gay grabbing_face highres hoodie incest intraspecies jacket larger_male larger_penetrating larger_penetrating_smaller lying_on_snow lying_on_stomach male male/male male_only male_penetrating monster monster_boy nsfwsinningsans one_eye_closed orange_blush orange_penis outside pants_around_one_leg pants_pulled_down papyrus papyrus_(undertale) papysans penetration penetration_from_behind sans sans_(undertale) seme_papyrus 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 uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2010s 2019 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers digital_media_(artwork) duo ectopenis english_text fontcest from_front_position ganzooky gay holding_object holding_phone hoodie hoodie_only incest intraspecies larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy nsfwsinningsans orange_blush orange_penis pants_only papyrus papyrus_(undertale) papysans penetration phone phone_call sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom sweat talking_on_phone text thrusting top_papyrus topless topless_male uke_sans undead undertale undertale_(series) undertale_fanfiction video_game_character video_games white_background yaoi
2010s 2019 2boys 2d 2d_(artwork) animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers digital_media_(artwork) duo ectopenis english_text fontcest from_front_position ganzooky gay holding_object holding_phone hoodie hoodie_only incest intraspecies larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy nsfwsinningsans orange_blush orange_penis pants_only papyrus papyrus_(undertale) papysans penetration phone phone_call sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom sweat talking_on_phone text thrusting top_papyrus topless topless_male uke_sans undead undertale undertale_(series) undertale_fanfiction video_game_character video_games white_background yaoi
1:1 1:1_aspect_ratio 1girl 1girl2boys 2020 2020s 2boys 2boys1girl 2boys_1girl 2d 2d_(artwork) anon anonymous_male anthro asgore_dreemurr bigger_female bigger_male bisexual bisexual_male boss_monster caprine drooling fellatio female_anthro furry furry_female furry_male goat grabbing_head horns larger_anthro larger_female larger_male licking_lips male/female male/male/female male_anthro mmf_threesome nude oral penis seme_asgore sex simple_background small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom threesome tired_but_horny_(artist) top_asgore toriel trio twitter twitter_username undertale undertale_(series) unseen_male_face video_game_character video_games white_fur
1:1 1:1_aspect_ratio 1girl 1girl2boys 2020 2020s 2boys 2boys1girl 2boys_1girl 2d 2d_(artwork) anon anonymous_male anthro asgore_dreemurr bigger_female bigger_male bisexual bisexual_male boss_monster caprine drooling fellatio female_anthro furry furry_female furry_male goat grabbing_head horns larger_anthro larger_female larger_male licking_lips male/female male/male/female male_anthro mmf_threesome nude oral penis seme_asgore sex simple_background small_sub small_sub_big_dom smaller_male smaller_sub smaller_sub_bigger_dom threesome tired_but_horny_(artist) top_asgore toriel trio twitter twitter_username undertale undertale_(series) unseen_male_face video_game_character video_games white_fur
1:1 1:1_aspect_ratio 1girl 1girl2boys 2020 2020s 2boys 2boys1girl 2boys_1girl 2d 2d_(artwork) anon anonymous_male anthro anthro_penetrating asgore_dreemurr assisted_sex big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_female bigger_male bigger_penetrating bigger_penetrating_smaller bisexual bisexual_male black_legwear black_stockings black_thighhighs boss_monster caprine dominant_anthro drooling english_text female_anthro furry furry_female furry_male goat horns larger_anthro larger_female larger_male larger_penetrating larger_penetrating_smaller licking_lips male/male/female male_anthro male_penetrating male_penetrating_male mmf_threesome moaning nude penetration penis seme_asgore sex simple_background small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom stockings text thighhighs threesome tired_but_horny_(artist) top_asgore toriel trio twitter twitter_username undertale undertale_(series) video_game_character video_games white_fur
1:1 1:1_aspect_ratio 1girl 1girl2boys 2020 2020s 2boys 2boys1girl 2boys_1girl 2d 2d_(artwork) anon anonymous_male anthro anthro_penetrating asgore_dreemurr assisted_sex big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_female bigger_male bigger_penetrating bigger_penetrating_smaller bisexual bisexual_male black_legwear black_stockings black_thighhighs boss_monster caprine dominant_anthro drooling english_text female_anthro furry furry_female furry_male goat horns larger_anthro larger_female larger_male larger_penetrating larger_penetrating_smaller licking_lips male/male/female male_anthro male_penetrating male_penetrating_male mmf_threesome moaning nude penetration penis seme_asgore sex simple_background small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom stockings text thighhighs threesome tired_but_horny_(artist) top_asgore toriel trio twitter twitter_username undertale undertale_(series) video_game_character video_games white_fur
2020s 2022 2boys 2d 2d_(artwork) abosinsin anal anal_penetration anal_sex animated_skeleton arms_grab bad_id bad_twitter_id big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller black_legwear blue_hoodie blue_penis blush bodily_fluids bottom_sans bouncing_penis brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed cussing dialogue digital_media_(artwork) dirty_talk duo ectopenis english_text erect_while_penetrated fluids fontcest from_behind_position fully_clothed gloves grabbing_from_behind head_out_of_frame holding_arms hoodie inactive_account incest intraspecies kneeling larger_dom larger_male larger_penetrating larger_penetrating_smaller leaking_cum legwear male male/male male_only male_out_of_frame male_penetrated male_penetrating male_penetrating_male maledom moan moaning monster monster_boy motion_lines onomatopoeia papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes penis penis_through_clothing pounding prison_guard_position profanity red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sex_through_clothes sex_through_clothing sibling_incest siblings size_difference skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smooth_penis swearing sweat text text_bubble thought_bubble thrusting top_papyrus uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games white_background yaoi
2020s 2022 2boys 2d 2d_(artwork) abosinsin anal anal_penetration anal_sex animated_skeleton arms_grab bad_id bad_twitter_id big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller black_legwear blue_hoodie blue_penis blush bodily_fluids bottom_sans bouncing_penis brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed cussing dialogue digital_media_(artwork) dirty_talk duo ectopenis english_text erect_while_penetrated fluids fontcest from_behind_position fully_clothed gloves grabbing_from_behind head_out_of_frame holding_arms hoodie inactive_account incest intraspecies kneeling larger_dom larger_male larger_penetrating larger_penetrating_smaller leaking_cum legwear male male/male male_only male_out_of_frame male_penetrated male_penetrating male_penetrating_male maledom moan moaning monster monster_boy motion_lines onomatopoeia papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes penis penis_through_clothing pounding prison_guard_position profanity red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sex_through_clothes sex_through_clothing sibling_incest siblings size_difference skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smooth_penis swearing sweat text text_bubble thought_bubble thrusting top_papyrus uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games white_background yaoi
2boys 2d 2d_(artwork) animated_skeleton big_dom_small_sub bigger_dom bigger_dom_smaller_sub blue_blush blue_penis blue_tongue blush bonetrouble bottom_sans brother brother/brother brother_and_brother brothers clothed_male cropped crying drawn drooling edited erect_penis erection fontcest handjob incest intraspecies kneel male male/male male_only monster monster_boy orange_blush pants_only papyrus papyrus_(undertale) papysans penis penis_grab saliva sans sans_(undertale) seme_papyrus shirtless sibling_incest siblings sitting skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom smaller_submissive tears top_papyrus topless topless_male traditional_media traditional_media_(artwork) uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2boys 2d 2d_(artwork) animated_skeleton big_dom_small_sub bigger_dom bigger_dom_smaller_sub blue_blush blue_penis blue_tongue blush bonetrouble bottom_sans brother brother/brother brother_and_brother brothers clothed_male cropped crying drawn drooling edited erect_penis erection fontcest handjob incest intraspecies kneel male male/male male_only monster monster_boy orange_blush pants_only papyrus papyrus_(undertale) papysans penis penis_grab saliva sans sans_(undertale) seme_papyrus shirtless sibling_incest siblings sitting skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom smaller_submissive tears top_papyrus topless topless_male traditional_media traditional_media_(artwork) uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
2010s 2016 2boys 2d 2d_(artwork) against_wall anal animated_skeleton arms_around_another arms_around_another's_neck arms_around_neck artist_name backwards_hat big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_female bigger_male bigger_penetrating_smaller blue_blush blue_hoodie blue_jacket blue_penis blue_saliva bluetrashsins blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers cap carrying carrying_partner carrying_position digital_media_(artwork) drooling duo ectopenis fontcest gay genitals glowing glowing_eye glowing_penis hands_around_neck 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 orange_blush orange_penis orange_saliva papyrus papyrus_(undertale) papysans penetration red_cap sans sans_(undertale) seme_papyrus sex shirt_only sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom stand_and_carry_position suspended_congress tears top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games wall_sex yaoi
2010s 2016 2boys 2d 2d_(artwork) against_wall anal animated_skeleton arms_around_another arms_around_another's_neck arms_around_neck artist_name backwards_hat big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_female bigger_male bigger_penetrating_smaller blue_blush blue_hoodie blue_jacket blue_penis blue_saliva bluetrashsins blush bottom_sans bottomless bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers cap carrying carrying_partner carrying_position digital_media_(artwork) drooling duo ectopenis fontcest gay genitals glowing glowing_eye glowing_penis hands_around_neck 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 orange_blush orange_penis orange_saliva papyrus papyrus_(undertale) papysans penetration red_cap sans sans_(undertale) seme_papyrus sex shirt_only sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom stand_and_carry_position suspended_congress tears top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games wall_sex yaoi
2d 2d_(artwork) 4boys animated_skeleton anon anonymous anonymous_male artist_request big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket bottom_sans bottomless bukkake crying crying_with_eyes_open cum cum_in_mouth cum_on_face cum_on_head digital_media_(artwork) faceless_character gangbang gangrape grabbing_penis grey_background group_sex hand_on_another's_head hand_on_head handjob handjob_while_penetrated hooded_jacket hoodie hoodie_only jacket larger_male larger_penetrating larger_penetrating_smaller male male_only male_penetrating monster monster_boy multiple_boys multiple_males off_shoulder oral penetration penis penis_grab sans sans_(undertale) sex simple_background skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom smaller_submissive solid_color_background solo_focus spitroast tears uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
2d 2d_(artwork) 4boys animated_skeleton anon anonymous anonymous_male artist_request big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_hoodie blue_jacket bottom_sans bottomless bukkake crying crying_with_eyes_open cum cum_in_mouth cum_on_face cum_on_head digital_media_(artwork) faceless_character gangbang gangrape grabbing_penis grey_background group_sex hand_on_another's_head hand_on_head handjob handjob_while_penetrated hooded_jacket hoodie hoodie_only jacket larger_male larger_penetrating larger_penetrating_smaller male male_only male_penetrating monster monster_boy multiple_boys multiple_males off_shoulder oral penetration penis penis_grab sans sans_(undertale) sex simple_background skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom smaller_submissive solid_color_background solo_focus spitroast tears uke_sans undead undertale undertale_(series) unseen_male_face video_game_character video_games yaoi
1:1 1:1_aspect_ratio 2010s 2018 2boys anal animated_skeleton artist_name artist_signature ass big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blue_body blue_glans blue_penis blue_tongue blush bottom_sans bottomless bottomless_male bound bound_wrists brother brother/brother brother_and_brother brother_penetrating_brother brothers choker clothed collar doggy_position duo ectobody ectopenis ectotongue fontcest from_behind from_behind_position gay handcuffed handcuffs incest larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy nsfwgarbagedump orange_blush orange_body papyrus papyrus_(undertale) papysans partially_clothed penetration penetration_from_behind penis pixiv_id_36285069 restrained restraints sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) white_background yaoi
1:1 1:1_aspect_ratio 2010s 2018 2boys anal animated_skeleton artist_name artist_signature ass big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blue_body blue_glans blue_penis blue_tongue blush bottom_sans bottomless bottomless_male bound bound_wrists brother brother/brother brother_and_brother brother_penetrating_brother brothers choker clothed collar doggy_position duo ectobody ectopenis ectotongue fontcest from_behind from_behind_position gay handcuffed handcuffs incest larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating male_penetrating_male monster monster_boy nsfwgarbagedump orange_blush orange_body papyrus papyrus_(undertale) papysans partially_clothed penetration penetration_from_behind penis pixiv_id_36285069 restrained restraints sans sans_(undertale) seme_papyrus sex sex_from_behind sibling_incest siblings simple_background skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on tongue tongue_out top_papyrus uke_sans undead undertale undertale_(series) white_background yaoi
1boy 1cuntboy 2010s 2018 2boys 2d 2d_(artwork) anal animated_skeleton ass ass_up bed bedroom big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blue_pussy blush bookshelf bottom_sans bottomless bottomless_cuntboy bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers cuntboy cuntboy_penetrated digital_media_(artwork) doggy_position duo ectopenis ectopussy fontcest from_behind from_behind_position genitals gloves incest indoors larger_penetrating larger_penetrating_smaller male male_penetrating_cuntboy monster monster_boy nsfwgarbagedump on_bed one_eye_closed orange_blush orange_penis papyrus papyrus_(undertale) papysans partially_clothed penetration penetration_from_behind penis pixiv pixiv_id_36285069 pussy red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sex_on_bed sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom top-down_bottom-up top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
1boy 1cuntboy 2010s 2018 2boys 2d 2d_(artwork) anal animated_skeleton ass ass_up bed bedroom big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blue_pussy blush bookshelf bottom_sans bottomless bottomless_cuntboy bottomless_male brother brother/brother brother_and_brother brother_penetrating_brother brothers cuntboy cuntboy_penetrated digital_media_(artwork) doggy_position duo ectopenis ectopussy fontcest from_behind from_behind_position genitals gloves incest indoors larger_penetrating larger_penetrating_smaller male male_penetrating_cuntboy monster monster_boy nsfwgarbagedump on_bed one_eye_closed orange_blush orange_penis papyrus papyrus_(undertale) papysans partially_clothed penetration penetration_from_behind penis pixiv pixiv_id_36285069 pussy red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sex_on_bed sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom top-down_bottom-up top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yaoi
1:1 1:1_aspect_ratio 2010s 2018 2boys 2d 2d_(artwork) alternate_clothing alternate_costume anal animated_skeleton big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blush bottom_sans bottomless brother brother/brother brother_and_brother brother_penetrating_brother brothers carrying_partner clothed couch couch_sex crying crying_with_eyes_closed digital_media_(artwork) dominant dominant_male domination door duo ectopenis floor fontcest furniture green_couch hi_res high_res highres implied_bondage incest indoors larger_penetrating larger_penetrating_smaller legs_apart legs_held_open legs_spread living_room male male_only male_penetrated male_penetrating male_penetrating_male maledom monster monster_boy non-consensual noncon nonconsensual nsfwgarbagedump on_couch on_sofa orange_penis papyrus papyrus_(undertale) papysans partially_clothed penetration penis pixiv_id_36285069 rape reverse_suspended_congress sans sans_(undertale) seme_papyrus sex sibling_incest siblings sitting sitting_on_couch sitting_on_sofa skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on sofa submissive tears top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yandere yaoi
1:1 1:1_aspect_ratio 2010s 2018 2boys 2d 2d_(artwork) alternate_clothing alternate_costume anal animated_skeleton big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blush bottom_sans bottomless brother brother/brother brother_and_brother brother_penetrating_brother brothers carrying_partner clothed couch couch_sex crying crying_with_eyes_closed digital_media_(artwork) dominant dominant_male domination door duo ectopenis floor fontcest furniture green_couch hi_res high_res highres implied_bondage incest indoors larger_penetrating larger_penetrating_smaller legs_apart legs_held_open legs_spread living_room male male_only male_penetrated male_penetrating male_penetrating_male maledom monster monster_boy non-consensual noncon nonconsensual nsfwgarbagedump on_couch on_sofa orange_penis papyrus papyrus_(undertale) papysans partially_clothed penetration penis pixiv_id_36285069 rape reverse_suspended_congress sans sans_(undertale) seme_papyrus sex sibling_incest siblings sitting sitting_on_couch sitting_on_sofa skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on sofa submissive tears top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yandere yaoi
1boy 1cuntboy 2010s 2017 after_sex after_vaginal animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blue_clitoris blue_hoodie blue_jacket blue_pussy blush bottom_sans bottomless brother brother/brother brothers clitoris closed_eyes clothed_male couch cum_leak cum_leaking cum_leaking_out_of_pussy cuntboy cuntboy_focus cuntboysub dominant_male duo ectoplasm ectopussy fontcest gloves hooded_jacket hoodie incest jacket larger_male legs_apart legs_spread male male/cuntboy maledom mmmemmo monster on_couch on_sofa papyrus papyrus_(undertale) papysans pussy pussy_juice pussy_juice_drip red_gloves sans sans_(undertale) seme_papyrus sequence sequential sequential_art sequential_set shirt_lift shirt_up sitting sitting_on_couch skeleton small_sub small_sub_big_dom smaller_cuntboy smaller_sub smaller_sub_bigger_dom socks socks_on sofa spread_legs spread_pussy submissive_cuntboy top_papyrus touching_pussy uke_sans undead undertale undertale_(series) unseen_male_face yaoi
1boy 1cuntboy 2010s 2017 after_sex after_vaginal animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blue_clitoris blue_hoodie blue_jacket blue_pussy blush bottom_sans bottomless brother brother/brother brothers clitoris closed_eyes clothed_male couch cum_leak cum_leaking cum_leaking_out_of_pussy cuntboy cuntboy_focus cuntboysub dominant_male duo ectoplasm ectopussy fontcest gloves hooded_jacket hoodie incest jacket larger_male legs_apart legs_spread male male/cuntboy maledom mmmemmo monster on_couch on_sofa papyrus papyrus_(undertale) papysans pussy pussy_juice pussy_juice_drip red_gloves sans sans_(undertale) seme_papyrus sequence sequential sequential_art sequential_set shirt_lift shirt_up sitting sitting_on_couch skeleton small_sub small_sub_big_dom smaller_cuntboy smaller_sub smaller_sub_bigger_dom socks socks_on sofa spread_legs spread_pussy submissive_cuntboy top_papyrus touching_pussy uke_sans undead undertale undertale_(series) unseen_male_face yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_hoodie blue_jacket blue_pussy blush bottom_sans bottomless brother brother/brother brothers clitoris closed_eyes clothed_male couch couch_sex cum cum_in_pussy cum_inside cuntboy cuntboy_focus cuntboy_penetrated cuntboysub digital_media_(artwork) dominant_male duo ectopenis ectoplasm ectopussy fontcest genitals gloves hooded_jacket hoodie incest jacket larger_male larger_penetrating larger_penetrating_smaller legs_apart legs_spread male male/cuntboy male_penetrating male_penetrating_cuntboy maledom mmmemmo monster on_couch on_sofa orange_penis papyrus papyrus_(undertale) papysans penetration penis penis_in_pussy penis_through_clothing pussy pussy_juice pussy_juice_drip red_gloves sans sans_(undertale) seme_papyrus sequence sequential sequential_art sequential_set sex shirt_lift shirt_up sitting sitting_on_couch skeleton small_sub small_sub_big_dom smaller_cuntboy smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on sofa spread_legs spread_pussy submissive_cuntboy top_papyrus touching_pussy uke_sans undead undertale undertale_(series) unseen_male_face vaginal vaginal_penetration vaginal_sex veiny_penis video_game_character video_games x-ray yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_hoodie blue_jacket blue_pussy blush bottom_sans bottomless brother brother/brother brothers clitoris closed_eyes clothed_male couch couch_sex cum cum_in_pussy cum_inside cuntboy cuntboy_focus cuntboy_penetrated cuntboysub digital_media_(artwork) dominant_male duo ectopenis ectoplasm ectopussy fontcest genitals gloves hooded_jacket hoodie incest jacket larger_male larger_penetrating larger_penetrating_smaller legs_apart legs_spread male male/cuntboy male_penetrating male_penetrating_cuntboy maledom mmmemmo monster on_couch on_sofa orange_penis papyrus papyrus_(undertale) papysans penetration penis penis_in_pussy penis_through_clothing pussy pussy_juice pussy_juice_drip red_gloves sans sans_(undertale) seme_papyrus sequence sequential sequential_art sequential_set sex shirt_lift shirt_up sitting sitting_on_couch skeleton small_sub small_sub_big_dom smaller_cuntboy smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on sofa spread_legs spread_pussy submissive_cuntboy top_papyrus touching_pussy uke_sans undead undertale undertale_(series) unseen_male_face vaginal vaginal_penetration vaginal_sex veiny_penis video_game_character video_games x-ray yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_hoodie blue_jacket blue_pussy blush bottom_sans bottomless brother brother/brother brothers clitoris clothed_male couch couch_sex cuntboy cuntboy_focus cuntboy_penetrated cuntboysub digital_media_(artwork) dominant_male duo ectopenis ectoplasm ectopussy fontcest genitals gloves hooded_jacket hoodie incest jacket larger_male larger_penetrating larger_penetrating_smaller legs_apart legs_spread male male/cuntboy male_penetrating male_penetrating_cuntboy maledom mmmemmo monster on_couch on_sofa orange_penis papyrus papyrus_(undertale) papysans penetration penis penis_in_pussy penis_through_clothing pussy pussy_juice pussy_juice_drip red_gloves sans sans_(undertale) seme_papyrus sequence sequential sequential_art sequential_set sex shirt_lift shirt_up sitting sitting_on_couch skeleton small_sub small_sub_big_dom smaller_cuntboy smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on sofa spread_legs spread_pussy submissive_cuntboy top_papyrus touching_pussy uke_sans undead undertale undertale_(series) unseen_male_face vaginal vaginal_penetration vaginal_sex veiny_penis video_game_character video_games x-ray yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_hoodie blue_jacket blue_pussy blush bottom_sans bottomless brother brother/brother brothers clitoris clothed_male couch couch_sex cuntboy cuntboy_focus cuntboy_penetrated cuntboysub digital_media_(artwork) dominant_male duo ectopenis ectoplasm ectopussy fontcest genitals gloves hooded_jacket hoodie incest jacket larger_male larger_penetrating larger_penetrating_smaller legs_apart legs_spread male male/cuntboy male_penetrating male_penetrating_cuntboy maledom mmmemmo monster on_couch on_sofa orange_penis papyrus papyrus_(undertale) papysans penetration penis penis_in_pussy penis_through_clothing pussy pussy_juice pussy_juice_drip red_gloves sans sans_(undertale) seme_papyrus sequence sequential sequential_art sequential_set sex shirt_lift shirt_up sitting sitting_on_couch skeleton small_sub small_sub_big_dom smaller_cuntboy smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on sofa spread_legs spread_pussy submissive_cuntboy top_papyrus touching_pussy uke_sans undead undertale undertale_(series) unseen_male_face vaginal vaginal_penetration vaginal_sex veiny_penis video_game_character video_games x-ray yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_hoodie blue_jacket blue_pussy blush bottom_sans bottomless brother brother/brother brothers clitoris clothed_male couch couch_sex cuntboy cuntboy_focus cuntboy_penetrated cuntboysub digital_media_(artwork) dominant_male duo ectopenis ectoplasm ectopussy fontcest genitals gloves hooded_jacket hoodie incest jacket larger_male larger_penetrating larger_penetrating_smaller legs_apart legs_spread male male/cuntboy male_penetrating male_penetrating_cuntboy maledom mmmemmo monster on_couch on_sofa orange_penis papyrus papyrus_(undertale) papysans penetration penis penis_in_pussy penis_through_clothing pussy pussy_juice pussy_juice_drip red_gloves sans sans_(undertale) seme_papyrus sequence sequential sequential_art sequential_set sex shirt_lift shirt_up sitting sitting_on_couch skeleton small_sub small_sub_big_dom smaller_cuntboy smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on sofa spread_legs spread_pussy submissive_cuntboy top_papyrus touching_pussy uke_sans undead undertale undertale_(series) unseen_male_face vaginal vaginal_penetration vaginal_sex veiny_penis video_game_character video_games yaoi
1boy 1cuntboy 2010s 2017 2d 2d_(artwork) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_clitoris blue_hoodie blue_jacket blue_pussy blush bottom_sans bottomless brother brother/brother brothers clitoris clothed_male couch couch_sex cuntboy cuntboy_focus cuntboy_penetrated cuntboysub digital_media_(artwork) dominant_male duo ectopenis ectoplasm ectopussy fontcest genitals gloves hooded_jacket hoodie incest jacket larger_male larger_penetrating larger_penetrating_smaller legs_apart legs_spread male male/cuntboy male_penetrating male_penetrating_cuntboy maledom mmmemmo monster on_couch on_sofa orange_penis papyrus papyrus_(undertale) papysans penetration penis penis_in_pussy penis_through_clothing pussy pussy_juice pussy_juice_drip red_gloves sans sans_(undertale) seme_papyrus sequence sequential sequential_art sequential_set sex shirt_lift shirt_up sitting sitting_on_couch skeleton small_sub small_sub_big_dom smaller_cuntboy smaller_penetrated smaller_sub smaller_sub_bigger_dom socks socks_on sofa spread_legs spread_pussy submissive_cuntboy top_papyrus touching_pussy uke_sans undead undertale undertale_(series) unseen_male_face vaginal vaginal_penetration vaginal_sex veiny_penis video_game_character video_games yaoi