Sexual reproduction is a fact of life not just for humans, but for most living things. For theists, who believe that God is the original creator of everything living, the answer is that the processes of sexual reproduction are His doing and an integral part of the divine plan for creation. But human sexuality is a complicated business, and also includes non-standard sorts of desires. If God is the ultimate author of sexuality, then He would also seem to be responsible for it in all of its forms. That is, He is responsible for standard and nonstandard or “deviant” sexuality. Non-theists of course disagree and believe that the processes of sexual reproduction are the product of evolutionary processes that are believed to account for all life forms. Love is clearly an intrinsic good, and love is clearly a component of human sexuality. So, whatever its source, sex is a gift.