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1:1 1:1_aspect_ratio 2020s 2023 2boys 2d 2d_(artwork) anal animated_skeleton artist_name balls blush blush_lines bodily_fluids bottom_on_top bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers closed_eyes clothed clothing completely_nude completely_nude_male couch couch_sex dominant dominant_male duo ectopenis empath__life fluids fontcest from_behind_position genitals incest leg_grab legs_apart making_out male male/male male_only maledom malesub monster monster_boy nude nude_male papyrus papyrus_(undertale) papysans penetration penis precum sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background sitting sitting_on_couch sitting_on_sofa sitting_position skeleton sofa submissive submissive_male tel_a_friend testicle top_papyrus traditional_art traditional_media_(artwork) twitter uke_sans undead undertale undertale_(series) video_game_character video_games yaoi

1:1 1:1_aspect_ratio 2020s 2023 2boys 2d 2d_(artwork)anal animated_skeleton artist_name balls blush blush_lines bodily_fluids bottom_on_top bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers closed_eyes clothed clothing completely_nude completely_nude_male couch couch_sex dominant dominant_male duo ectopenis empath__life fluids fontcest from_behind_position genitals incest leg_grab legs_apart making_out male male/male male_only maledom malesub monster monster_boy nude nude_male papyrus papyrus_(undertale)papysans penetration penis precum sans sans_(undertale)seme_papyrus sex sibling_incest siblings simple_background sitting sitting_on_couch sitting_on_sofa sitting_position skeleton sofa submissive submissive_male tel_a_friend testicle top_papyrus traditional_art traditional_media_(artwork)twitter uke_sans undead undertale undertale_(series)video_game_character video_games yaoi

1:1 1:1_aspect_ratio 2020s 2023 2boys 2d 2d_(artwork) anal animated_skeleton artist_name balls blush blush_lines bodily_fluids bottom_on_top bottom_sans brother brother/brother brother_and_brother brother_penetrating_brother brothers closed_eyes clothed clothing completely_nude completely_nude_male couch couch_sex dominant dominant_male duo ectopenis empath__life fluids fontcest from_behind_position genitals incest leg_grab legs_apart making_out male male/male male_only maledom malesub monster monster_boy nude nude_male papyrus papyrus_(undertale) papysans penetration penis precum sans sans_(undertale) seme_papyrus sex sibling_incest siblings simple_background sitting sitting_on_couch sitting_on_sofa sitting_position skeleton sofa submissive submissive_male tel_a_friend testicle top_papyrus traditional_art traditional_media_(artwork) twitter uke_sans undead undertale undertale_(series) video_game_character video_games yaoi

2_girls alternate_universe ass ass_cleavage ass_crack ass_expansion ass_shake big_ass bottom_heavy bubble_ass bubble_butt dancing dezterity dirty_dancing fat_ass full_of_gas huge_ass ill_fitting_clothing insanely_hot large_ass massive_ass monochrome nintendo princess princess_zelda seductive sexy sexy_ass shaking_butt sketch smelly_ass the_legend_of_zelda traditional_art traditional_media_(artwork) twerking yoga_pants zelda_(a_link_between_worlds) zelda_(breath_of_the_wild)

1boy 2010s 2d 2d_(artwork) animated_skeleton apron back_view english_text looking_away looking_back male male_only monster naked_apron nude nude_male rear_view sans sans_(undertale) singing skeleton solo_male spatula text third-party_source traditional_art traditional_media_(artwork) undead undertale undertale_(series) unknown_artist video_game_character video_games