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2d_animation against_surface against_wall alley anal anal_penetration animated animated_gif anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro avian balls_deep barefoot beak big_feet biped bird black_and_white bouncing_penis claws conditional_dnp dacad dominant dominant_male duo erection eyes_closed feathers feet frame_by_frame from_behind_position genitals larger_anthro larger_dom larger_male male male/male male_penetrated male_penetrating male_penetrating_male monochrome nude outside parakeet parrot penetration penile penile_penetration penis penis_in_ass sex short_playtime size_difference smaller_anthro smaller_male smaller_penetrated standing standing_sex submissive submissive_male thrusting toe_claws trash_can true_parrot