Tags: #knotting dog #knotting anal #knotting piercing #knotting animal #knotting genitalia #knotting balls #knotting canid #knotting canine #knotting canis #knotting collar #knotting #knotting dobermann #knotting domestic #knotting dog #knotting facial #knotting piercing #knotting feral #knotting genital