Rule 34 Dev - all_fours anthro athletic athletic_male balls barefoot biceps black_body black_claws black_eyebrows black_fur black_nose brown_balls brown_body brown_eyes brown_fur claws ears_back erection eyebrows feet fur genitals glans humanoid_genitalia humanoid_penis looking_aside male multicolored_body multicolored_fur muscular muscular_anthro muscular_male navel nude penis pink_glans pink_penis pivoted_ears realistic_penis_size simple_background smile solo teeth toe_claws two_tone_body two_tone_fur furnedon axelll canid canine canis dobermann domestic_dog mammal pinscher 2016|4508643510