Rule 34 Dev - 2019 abs animal_genitalia animal_penis anthro balls black_fur black_nose blue_eyes blue_fur blue_penis canid canine canis erection eyebrows fluffy frenulum fur genital_piercing gyzer knot looking_at_viewer lying male male_only mammal markings muscular muscular_male nude pecs penis penis_piercing piercing silvixen simple_background solo teeth wolf|3519153072