anthro balls big_balls big_penis clothed clothing darkened_genitalia erection foreskin fur furniture genitals hair humanoid_genitalia humanoid_penis male masturbation muscular muscular_male nipples nude on_sofa orange_body orange_fur partially_clothed penis red_eyes retracted_foreskin sitting sitting_on_sofa smegma sofa solo spread_legs spreading underwear underwear_down vein veiny_penis mozhan naruto_(series) kurama canid canine fox mammal