FURVERT!

animal_genitalia animal_penis anus balls big_balls big_penis butt canid canine canine_genitalia canine_penis canis collar dobermann domestic_dog erection feral gaping gaping_anus genital_focus genitals green_eyes hi_res knot lying male mammal on_back open_mouth pawpads paws penis penis_focus pinscher presenting presenting_anus presenting_hindquarters solo tail teeth tongue tongue_out yaboo