abs animal_genitalia animal_penis anthro anus balls bara barazoku big_balls big_butt big_penis black_body bodily_fluids butt dark_hooves dripping equine_genitalia equine_penis flared_penis gaping gaping_anus genital_fluids genitals hands_behind_head hooves horn male muscular muscular_anthro muscular_male musk_clouds nipples penis perineum precum precum_drip presenting relaxing sauna sitting sleeping solo spread_legs spreading sweat vein veiny_biceps veiny_muscles veiny_penis veiny_thighs rulethony34tano_(director) bovid bovine cattle mammal