Rule 34 Dev - 2016 all_fours animal_genitalia animal_penis anthro armpit_hair balls black_fur blue_eyes canine canine_penis cyan_penis erection fangs fur glowing gradient_background hi_res knot looking_at_viewer male male_only mammal multicolored_fur nude otto0ttsy penis pinned precum saliva simple_background solo teal_nose tongue tongue_out turquoise_fur two_tone_fur vein veiny_penis view_from_below wolf|2701629576