anthro anus big_breasts big_butt black_hair breasts butt curvy_figure female genitals grey_body hair looking_at_viewer looking_back looking_back_at_viewer muscular muscular_anthro muscular_female presenting presenting_hindquarters puffy_anus pussy solo spread_butt spreading thick_thighs wide_hips director_homer_26 asinus donkey equid equine mammal