Rule 34 Dev - anus ball balls barking black_border black_hair black_nose bodily_fluids border brown_body brown_fur canid canine canis claws clothing danwolf15 digitigrade domestic_dog erection fangs feral fur fur_growth genitals german_shepherd green_eyes growth hair happy herding_dog human human_to_feral humanoid knot lying male male_only mammal on_back onomatopoeia open_mouth pastoral_dog pawpads paws penis quadruped red_penis saliva simple_background solo sound_effects species_transformation tail tan_body tan_fur teeth tennis_ball text tongue torn_clothing transformation white_background|4691064296