rule 34 2023 anthro areola belly big penis bodily fluids breasts brown body brown fur canid canine canis curvy figure digital media artwork domestic dripping female fluffy fur genital fluids genitals german shepherd gradient penis green eyes herding hi res kim trello mammal markings neck tuft nude pastoral pawpads penis pink pussy precum precum drip precum string pussy red penis shaking solo solo focus tremble spikes trembling tuft wide hips 9236740