2016 anal anthro balls basenji blue_sclera bodily_fluids brown_body brown_fur cadaverrdog canid canine canis casey_valentine curled_tail domestic_dog dripping duo erection fur genital_fluids genitals german_shepherd glans grey_body grey_fur grey_hair hair half-closed_eyes herding_dog howie_(cadaverrdog) humanoid_genitalia humanoid_penis hybrid_genitalia hybrid_penis knot knotted_humanoid_penis male male/male mammal multicolored_body multicolored_fur narrowed_eyes oral pastoral_dog penis pink_penis precum precum_drip precum_string primitive_dog rimming seductive sex simple_background spread_legs spreading tail tan_body tan_fur two_tone_body two_tone_fur