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2d_animation against_natural_surface against_surface against_tree anal anal_penetration animal_genitalia animal_penis animated animated_gif anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro antler_grab antlers bent_over black_body black_fur black_nose bouncing_butt butt canid canine canine_genitalia canine_penis canis countershading deer digital_media_(artwork)duo erection femboy from_behind_position fur genitals green_eyes hair hand_on_hip horn interspecies knot loop male male/male male_penetrated male_penetrating male_penetrating_male mammal motion_tweening muscular muscular_anthro muscular_male nude open_mouth outdoor_nudity outside penetration penile penile_penetration penis penis_in_ass plant predator/prey sex short_playtime sigma_x sigma_x_(character)snow teeth tongue tongue_out tree wolf xander_the_blue_(artist)