FURVERT!

anatomically_correct anatomically_correct_genitalia animal_genitalia animal_penis anus backsack balls butt canid canine canine_genitalia canine_penis canis clyde_wolf digital_media_(artwork)dobermann domestic_dog erection feral fur genitals hi_res knot knot_in_sheath male mammal multiple_images multiple_poses muscular nipples nude penis penis_tip piercing pink_anus pink_balls pink_sheath pinscher pose red_penis scar sheath simple_background solo spread_legs spreading white_anus white_balls white_body white_fur white_nipples white_sheath yellow_eyes