Rule 34 Dev - abs all_fours anthro aoyi1 balls big_penis black_body body_modification bondage canid canine canis collar cybernetic_limb ear_piercing ear_ring foreskin front_view genitals hands_behind_back hi_res kneeling male male_focus male_only mammal muscular penis piercing pubes retracted_foreskin ring_piercing robotic_limb signature simple_background solo wolf|12184109496