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1boy 1girl 1girl 1girls 3d 3d_(artwork) alisa_bosconovitch android bandai_namco breasts celadora copyright copyright_name cum cum_on_breasts cum_on_face cum_on_tongue detailed_background erect_penis erection green_eyes hand_on_penis hat holding_penis humanoid humanoid_robot light-skinned_female light-skinned_male male medium_breasts naked_female naked_male namco namco_bandai nipples nude nude nude_female nude_male one_eye_closed open_mouth penis pink_hair robot robot_girl robot_humanoid tekken tekken_8 tongue twitter unseen_male_face
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1girl android_21 android_21_(human) big_breasts blue_eyes breasts doctor dragon_ball dragon_ball_super dragon_ball_super:_super_hero dragon_ball_z:_kakarot extraxxxanimacion female_only glasses humanoid_robot legs long_hair long_legs mature_female miniskirt nude robot sexually_suggestive skirt solo_focus vomi_(dragon_ball)
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1boy 2d 2d_(artwork) ass balls boots condom daddy_kink digital_media_(artwork) english_text erection exposed_penis femboy greyscale hair hair_over_one_eye half-closed_eyes high_heel_boots holding_condom holding_object humanoid humanoid_robot inviting inviting_to_sex leg_lift looking_at_viewer male male_focus male_only mettaton mettaton_ex monochrome penis robot robot_boy robot_humanoid robotic_penis simple_background smirk smirking_at_viewer solo_male standing_on_one_leg talking talking_to_viewer testicle text undertale undertale_(series) video_game_character video_games wet_wasabi
1boy 2d 2d_(artwork) ass balls boots condom daddy_kink digital_media_(artwork) english_text erection exposed_penis femboy greyscale hair hair_over_one_eye half-closed_eyes high_heel_boots holding_condom holding_object humanoid humanoid_robot inviting inviting_to_sex leg_lift looking_at_viewer male male_focus male_only mettaton mettaton_ex monochrome penis robot robot_boy robot_humanoid robotic_penis simple_background smirk smirking_at_viewer solo_male standing_on_one_leg talking talking_to_viewer testicle text undertale undertale_(series) video_game_character video_games wet_wasabi
1boy 2010s 2017 2d 2d_(artwork) ass ass_focus black_hair boots digital_media_(artwork) gloves hair hair_over_one_eye hand_on_chest hand_on_own_chest hand_towards_viewer heart humanoid humanoid_robot looking_at_viewer male male_only mettaton mettaton_ex pink_boots pink_eyes rbtheartisan robot robot_boy robot_humanoid short_hair sparkleee-sprinkle tumblr undertale undertale_(series) video_game_character video_games white_gloves
1boy 2010s 2017 2d 2d_(artwork) ass ass_focus black_hair boots digital_media_(artwork) gloves hair hair_over_one_eye hand_on_chest hand_on_own_chest hand_towards_viewer heart humanoid humanoid_robot looking_at_viewer male male_only mettaton mettaton_ex pink_boots pink_eyes rbtheartisan robot robot_boy robot_humanoid short_hair sparkleee-sprinkle tumblr undertale undertale_(series) video_game_character video_games white_gloves
1boy 2020s 2023 2d 2d_(artwork) artist_name bondage bound darkner deltarune deltarune_chapter_2 digital_media_(artwork) genitals humanoid humanoid_robot male male_humanoid male_only multicolored_wings penis pointy_nose prehensile_penis raynecloud robot robot_humanoid spamton_g._spamton spamton_neo tentacle_penis tied_up undertale_(series) video_game_character video_games wings wire
1boy 2020s 2023 2d 2d_(artwork) artist_name bondage bound darkner deltarune deltarune_chapter_2 digital_media_(artwork) genitals humanoid humanoid_robot male male_humanoid male_only multicolored_wings penis pointy_nose prehensile_penis raynecloud robot robot_humanoid spamton_g._spamton spamton_neo tentacle_penis tied_up undertale_(series) video_game_character video_games wings wire
1boy 2d 2d_(artwork) arm_support artist_name ass ass_focus big_ass black_hair boots butt_focus digital_media_(artwork) dongoverlord femboy hair heart humanized humanoid_robot male male_only mettaton mettaton_ex robot robot_boy robot_humanoid solo_male undertale undertale_(series) unseen_male_face video_game_character video_games
1boy 2d 2d_(artwork) arm_support artist_name ass ass_focus big_ass black_hair boots butt_focus digital_media_(artwork) dongoverlord femboy hair heart humanized humanoid_robot male male_only mettaton mettaton_ex robot robot_boy robot_humanoid solo_male undertale undertale_(series) unseen_male_face video_game_character video_games
2boys 2d 2d_(artwork) accurate_art_style alley anthro burgerpants clothed_sex digital_media_(artwork) felid feline femboy femboy_on_male furry hair humanoid humanoid_on_anthro humanoid_robot male/male male_on_male male_only mettapants mettaton mettaton_ex penetration pixel_art robot robot_boy robot_humanoid seme_mettaton semi_public serfuzzy top_mettaton undertale undertale_(series) video_game_character video_games yaoi
2boys 2d 2d_(artwork) accurate_art_style alley anthro burgerpants clothed_sex digital_media_(artwork) felid feline femboy femboy_on_male furry hair humanoid humanoid_on_anthro humanoid_robot male/male male_on_male male_only mettapants mettaton mettaton_ex penetration pixel_art robot robot_boy robot_humanoid seme_mettaton semi_public serfuzzy top_mettaton undertale undertale_(series) video_game_character video_games yaoi
1boy 2010s 2019 2d 2d_(artwork) _zzappyy_ black_hair boots box digital_media_(artwork) footwear hair hair_over_one_eye high_heel_boots holding_microphone humanoid humanoid_robot male male_only mettaton mettaton_ex microphone pink_boots pink_high_heel_boots robot robot_boy robot_humanoid shoes simple_background solo_male sparkle sparkles undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2019 2d 2d_(artwork) _zzappyy_ black_hair boots box digital_media_(artwork) footwear hair hair_over_one_eye high_heel_boots holding_microphone humanoid humanoid_robot male male_only mettaton mettaton_ex microphone pink_boots pink_high_heel_boots robot robot_boy robot_humanoid shoes simple_background solo_male sparkle sparkles undertale undertale_(series) video_game_character video_games white_background
1_intersex 1boy 2020s 2021 2d abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant dominant_male dominant_pov duo edit english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maledom maleherm multiple_images penetrating_pov penetrator_pov penis penis_in_pussy pov pussy receiving_pov robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom spoken_heart submissive submissive_intersex submissive_pov taker_pov tear text third-party_edit thrusting thrusting_into_pussy twitter_username undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1_intersex 1boy 2020s 2021 2d abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant dominant_male dominant_pov duo edit english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maledom maleherm multiple_images penetrating_pov penetrator_pov penis penis_in_pussy pov pussy receiving_pov robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom spoken_heart submissive submissive_intersex submissive_pov taker_pov tear text third-party_edit thrusting thrusting_into_pussy twitter_username undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1_intersex 1boy 2020s 2021 2d 2d_ abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant dominant_male dominant_pov duo edit english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maledom maleherm multiple_images penetrating_pov penetrator_pov penis penis_in_pussy pov pussy receiving_pov robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom spoken_heart submissive submissive_intersex submissive_pov taker_pov tear text third-party_edit thrusting thrusting_into_pussy twitter_username undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1_intersex 1boy 2020s 2021 2d 2d_ abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant dominant_male dominant_pov duo edit english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maledom maleherm multiple_images penetrating_pov penetrator_pov penis penis_in_pussy pov pussy receiving_pov robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom spoken_heart submissive submissive_intersex submissive_pov taker_pov tear text third-party_edit thrusting thrusting_into_pussy twitter_username undertale_(series) vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1_intersex 1boy 2020s 2021 2d abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant_pov duo english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maleherm penetrating_pov penetrator_pov penis penis_in_pussy pov pussy robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom solo_focus spoken_heart submissive_intersex tear text thrusting thrusting_into_pussy twitter_username undertale_(series) unseen_character vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1_intersex 1boy 2020s 2021 2d abosinsin backwards_hat bad_id bad_twitter_id big_dom big_dom_small_sub big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_clitoris blue_glans blush cap cap'n_(deltarune) clitoris darkner deltarune deltarune_chapter_2 digital_media dominant_pov duo english_text gloves grabbing_leg grabbing_wrist hat humanoid humanoid_robot inactive_account intersex intersex_penetrated k_k_(deltarune) larger_male larger_penetrating larger_penetrating_smaller leg_grab male male/intersex male/maleherm male_penetrating male_penetrating_intersex male_pov maleherm penetrating_pov penetrator_pov penis penis_in_pussy pov pussy robot robot_humanoid robotic_penis size_difference small_sub small_sub_big_dom smaller_intersex smaller_penetrated smaller_sub smaller_sub_bigger_dom solo_focus spoken_heart submissive_intersex tear text thrusting thrusting_into_pussy twitter_username undertale_(series) unseen_character vaginal vaginal_penetration vaginal_sex video_game_character video_games white_background wrist_grab yellow_eyes
1boy 2020s 2021 2d abosinsin bad_id bad_twitter_id cap'n_(deltarune) darkner deltarune deltarune_chapter_2 digital_media dominant dominant_male duo english_text humanoid humanoid_robot inactive_account k_k_(deltarune) male male_focus maledom pov receiving_pov robot robot_humanoid solo_focus submissive submissive_pov taker_pov text undertale_(series) unseen_character video_game_character video_games white_background yellow_eyes
1boy 2020s 2021 2d abosinsin bad_id bad_twitter_id cap'n_(deltarune) darkner deltarune deltarune_chapter_2 digital_media dominant dominant_male duo english_text humanoid humanoid_robot inactive_account k_k_(deltarune) male male_focus maledom pov receiving_pov robot robot_humanoid solo_focus submissive submissive_pov taker_pov text undertale_(series) unseen_character video_game_character video_games white_background yellow_eyes
1cuntboy 2020s 2021 2boys 2d abosinsin bad_id bad_twitter_id cap'n_(deltarune) cuntboy darkner deltarune deltarune_chapter_2 digital_media humanoid humanoid_robot inactive_account k_k_(deltarune) male male/cuntboy penis robot robot_humanoid robotic_penis sex sweet_(deltarune) threesome undertale_(series) video_game_character video_games white_background yaoi
1cuntboy 2020s 2021 2boys 2d abosinsin bad_id bad_twitter_id cap'n_(deltarune) cuntboy darkner deltarune deltarune_chapter_2 digital_media humanoid humanoid_robot inactive_account k_k_(deltarune) male male/cuntboy penis robot robot_humanoid robotic_penis sex sweet_(deltarune) threesome undertale_(series) video_game_character video_games white_background yaoi
1boy 2010s 2015 2d 2d_(artwork) hair humanoid humanoid_robot ladybumtickler legs_apart legs_spread looking_at_viewer male male_only mettaton mettaton_ex penis precum robot robot_boy robot_humanoid robotic_penis sitting sniggysmut solo_male third-party_source undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2015 2d 2d_(artwork) hair humanoid humanoid_robot ladybumtickler legs_apart legs_spread looking_at_viewer male male_only mettaton mettaton_ex penis precum robot robot_boy robot_humanoid robotic_penis sitting sniggysmut solo_male third-party_source undertale undertale_(series) video_game_character video_games white_background
2010s 2016 2boys 2d 2d_(artwork) animated_skeleton bigger_male biting_lip black_and_white black_hair blue_jacket bottom_sans clothed digital_media_(artwork) ectotongue fellatio genitals hair hair_over_one_eye hand_on_another's_head hand_on_head heart humanoid humanoid_robot jacket ladybumtickler larger_male licking licking_penis line_art lineart male male/male male_only mettasans mettaton mettaton_ex monochrome monster oral penis robot robot_boy robot_humanoid sans sans_(undertale) seme_mettaton sex size_difference skeleton smaller_male sniggysmut third-party_source top_mettaton tumblr_username uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
2010s 2016 2boys 2d 2d_(artwork) animated_skeleton bigger_male biting_lip black_and_white black_hair blue_jacket bottom_sans clothed digital_media_(artwork) ectotongue fellatio genitals hair hair_over_one_eye hand_on_another's_head hand_on_head heart humanoid humanoid_robot jacket ladybumtickler larger_male licking licking_penis line_art lineart male male/male male_only mettasans mettaton mettaton_ex monochrome monster oral penis robot robot_boy robot_humanoid sans sans_(undertale) seme_mettaton sex size_difference skeleton smaller_male sniggysmut third-party_source top_mettaton tumblr_username uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi
1boy 2010s 2015 2d 2d_(artwork) before_and_after black_hair book books cousins dripping duo genitals ghost grabbing_own_penis grabbing_penis hair hair_over_one_eye hand_behind_head happstablook humanoid humanoid_robot ladybumtickler magazine male mettaton mettaton_ex napstablook penis robot robot_boy robot_humanoid sniggysmut speech_bubble talking_to_another text_bubble third-party_source undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2015 2d 2d_(artwork) before_and_after black_hair book books cousins dripping duo genitals ghost grabbing_own_penis grabbing_penis hair hair_over_one_eye hand_behind_head happstablook humanoid humanoid_robot ladybumtickler magazine male mettaton mettaton_ex napstablook penis robot robot_boy robot_humanoid sniggysmut speech_bubble talking_to_another text_bubble third-party_source undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2015 2d 2d_(artwork) artist_name balls black_hair closed_eyes cum cum_drip cum_dripping_from_penis drooling genitals grabbing_own_balls grabbing_own_testicles hair hair_over_one_eye humanoid humanoid_robot kneeling ladybumtickler male male_masturbation male_only masturbation mettaton mettaton_ex moaning penile penile_masturbation penis robot robot_boy robot_humanoid simple_background sniggysmut solo solo_male spoken_heart testicles text third-party_source undertale undertale_(series) video_game_character video_games white_background
1boy 2010s 2015 2d 2d_(artwork) artist_name balls black_hair closed_eyes cum cum_drip cum_dripping_from_penis drooling genitals grabbing_own_balls grabbing_own_testicles hair hair_over_one_eye humanoid humanoid_robot kneeling ladybumtickler male male_masturbation male_only masturbation mettaton mettaton_ex moaning penile penile_masturbation penis robot robot_boy robot_humanoid simple_background sniggysmut solo solo_male spoken_heart testicles text third-party_source 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 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) ahoge animated_skeleton blue_blush blue_tongue blush boots bottom_sans crying drooling fangs hair high_heel_boots hooded_jacket hoodie humanoid humanoid_robot jacket licking_tongue making_out male male/male male_only mettasans mettaton mettaton_ex monster partially_colored robot robot_boy robot_humanoid sans sans_(undertale) skeleton sketch sweat tears tongue tongue_out trembling tumblr uke_sans undead undertale undertale_(series) unknown_artist video_game_character video_games white_background yaoi
2010s 2016 2boys 2d 2d_(artwork) ahoge animated_skeleton blue_blush blue_tongue blush boots bottom_sans crying drooling fangs hair high_heel_boots hooded_jacket hoodie humanoid humanoid_robot jacket licking_tongue making_out male male/male male_only mettasans mettaton mettaton_ex monster partially_colored robot robot_boy robot_humanoid sans sans_(undertale) skeleton sketch sweat tears tongue tongue_out trembling tumblr uke_sans undead undertale undertale_(series) unknown_artist video_game_character video_games white_background 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 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
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