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anthro anus aquas_sirenix big_breasts big_butt breasts brooke_(gbg)butt canid canine canis claws dobermann domestic_dog feet female genitals greyscale hi_res huge_butt looking_at_viewer looking_back looking_back_at_viewer mammal monochrome pawpads pinscher presenting presenting_hindquarters rear_view short_tail smile solo tail vulva