Rule 34 Dev - animal_genitalia animal_penis backsack ball_bulge balls big_balls big_penis bovid bovine bovine_genitalia bovine_penis bovine_tail epididymis genitals hi_res hooves infestation male male_only mammal parasite penetration penis qwaxi~lixard solo urethral urethral_bulge urethral_penetration worm|10069387960