abs animal_genitalia animal_penis anthro balls biceps big_balls big_penis black_balls bodily_fluids equine_penis flared_penis forest genital_fluids genitals holding_penis leaking_precum long_penis looking_at_viewer male medial_ring muscular muscular_anthro muscular_male muscular_thighs navel nude_male outdoor_nudity outdoors pecs penis plant precum precum_string presenting presenting_balls presenting_penis saggy_balls sitting_on_ground solo spread_legs spreading suggestive tongue tongue_out tree sysns equid equine horse mammal hi_res