2019 anthro anthro_on_anthro artist_logo balls black_body black_fur black_nose blue_eyes border_collie brown_body brown_fur canid canine canis cheek_tuft collie dated domestic_dog duo erection facial_tuft fur genitals german_shepherd herding_dog kola_(artist) logo male male/male mammal mouth_closed nude pastoral_dog penis penis_tip sheepdog simple_background tan_balls tan_body tan_fur tuft white_background white_body white_fur yellow_eyes