their anatomy, a physiological complement to one another. The male and female sex organs not only fit together, they function together. Their shape, size, fluids, tissue type—everything about their anatomy and physiology—tells us they are made to work together. As a result, men and women sexually function together. What evidence do we have that humans are made for heterosexual sex? When a couple engages in a conjugal act, they can create another human being. In fact, the sex organ is the only body