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2010s 2016 2d 2d_(artwork)3koma animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blue_hoodie blue_jacket blush book bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed comic comic_panel comic_sans digital_media_(artwork)duo english_text fontcest from_behind_position fully_clothed gloves headphones heart-shaped_pupils heart_eyes holding_book holding_microphone holding_object hooded_jacket hoodie implied_cuntboy implied_penetration implied_pussy implied_sex implied_vaginal incest intraspecies jacket larger_penetrating larger_penetrating_smaller male microphone mmmemmo monster monster_boy mounting onomatopoeia orange_background orange_blush papyrus papyrus_(undertale)papysans penetration_from_behind reading red_gloves 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 solid_color_background text top_papyrus tumblr uke_sans undead undertale undertale_(series)video_game_character video_games yaoi

2010s 2016 2d 2d_(artwork) 3koma animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blue_hoodie blue_jacket blush book bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers clothed comic comic_panel comic_sans digital_media_(artwork) duo english_text fontcest from_behind_position fully_clothed gloves headphones heart-shaped_pupils heart_eyes holding_book holding_microphone holding_object hooded_jacket hoodie implied_cuntboy implied_penetration implied_pussy implied_sex implied_vaginal incest intraspecies jacket larger_penetrating larger_penetrating_smaller male microphone mmmemmo monster monster_boy mounting onomatopoeia orange_background orange_blush papyrus papyrus_(undertale) papysans penetration_from_behind reading red_gloves 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 solid_color_background text top_papyrus tumblr uke_sans undead undertale undertale_(series) video_game_character video_games yaoi

2010s 2016 2boys 2d 2d_(artwork) against_the_wall against_wall anal animated_skeleton ass big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller blue_blush blue_cum blue_hoodie blue_jacket blue_penis blush bodyguard_position bottom_sans brother/brother brother_and_brother brother_penetrating_brother brothers butt clothed clothed_male clothed_sex comic_sans cum cum_on_wall cum_while_penetrated digital_media_(artwork) dirty_talk duo ectopenis ectotongue english_text fontcest from_behind from_behind_position fully_clothed gay gay_sex gloves grabbing_penis handjob handjob_while_penetrating hoodie incest intraspecies jacket larger_penetrating larger_penetrating_smaller licking licking_face male male/male male_penetrated male_penetrating male_penetrating_male mmmemmo monster monster_boy onomatopoeia orange_blush orange_penis orange_tongue papyrus papyrus_(undertale) papysans penetration penetration_from_behind penetration_through_clothes penis penis_in_anus penis_in_ass penis_through_clothing red_gloves sans sans_(undertale) seme_papyrus sex sex_from_behind sex_through_clothes sex_through_clothing sibling_incest siblings skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom standing_sex talking_to_another talking_to_partner text text_bubble thrusting thrusting_into_ass tongue top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yaoi

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