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4:3 ambiguous_gender ambiguous_penetrated black_and_white collaborative collaborative_fellatio collaborative_oral collaborative_sex duo_focus elemental_creature erection faceless_character faceless_male fellatio flora_fauna forced genitals group group_sex human male male/ambiguous male_penetrating male_penetrating_ambiguous mammal mario_bros monochrome nintendo not_furry open_mouth oral oral_penetration penetration penile penis piranha_plant plant sex simple_background threesome tongue tongue_out tongue_out_fellatio trio unknown_artist white_background