FURVERT!

2005 4:3 abs abstract_background all_fours animal_genitalia animal_penis anthro athletic balls biceps biped black_body black_fur black_nose bonner_(character)brown_body brown_eyes brown_fur canid canine canine_genitalia canine_penis canis claws collar dobermann domestic_dog flaccid fur genitals gradient_background kneeling looking_at_viewer male mammal muscular muscular_anthro muscular_male nexus nude one_eye_closed open_mouth orange_eyes pecs penis penis_tip pinscher pose sheath simple_background solo toe_claws vein wallpaper