Rule 34 Dev - all_fours animal_genitalia animal_penis anus backsack balls black_claws black_nose brown_eyes butt canine_genitalia canine_penis claws erection fangs feral fluffy fluffy_tail fur genitals knot looking_at_viewer looking_back male paws penis perineum pink_anus presenting presenting_anus presenting_hindquarters quadruped raised_tail simple_background smile solo tail tan_body tan_fur teeth vein veiny_penis anchee marleau canid canine canis mammal wolf|10066249235