abs animal_genitalia animal_penis anthro anus balls bara barazoku barn big_ass big_balls big_penis brown_body brown_skin butt equine_genitalia equine_penis facial_piercing flared_penis gaping gaping_anus genitals hands_behind_head hay hooves horn legs_up looking_at_viewer lying lying_down male medial_ring muscular muscular_anthro muscular_male nipples nose_piercing nose_ring on_back penis perineum piercing presenting ring_piercing seductive solo vein veiny_penis rulethony34tano_(director) bovid bovine cattle mammal tail hi_res