FURVERT!

anthro anus balls butt canid canine canis digital_media_(artwork)erection fluffy fluffy_tail foreskin fur genitals glans greyscale hi_res humanoid_genitalia humanoid_penis kojiray lying male male_anthro mammal monochrome on_front penis penis_towards_viewer perineum presenting presenting_anus presenting_balls presenting_hindquarters presenting_penis rear_view retracted_foreskin shadow shaft_divide simple_background solo tail urethra whiskers white_background wolf