Rule 34 Dev - animal_genitalia animal_penis anthro balls blue_eyes canid canine_penis cheek_tuft erection facial_tuft front_view fur genitals glistening glistening_eyes grey_balls grey_body grey_fur grey_penis grey_sheath leaning leaning_back male mammal narrowed_eyes neck_tuft nude penis pupbii signature simple_background sitting smile solo tuft|7547595472