Rule 34 Dev - anthro anus arched_back backsack balls butt butt_shot countershade_tail countershade_torso countershading fur genitals grey_body grey_fur grey_tail male multicolored_body multicolored_fur nude perineum rear_view solo standing tail two_tone_body two_tone_fur two_tone_tail ursofofinho nova_the_wolfgon canid canine canis mammal wolf signature|4580119110