It is wrong to think that sex exists only for the purpose of procreation. It’s true that sex initially evolved for procreation, but like almost every evolving trait, things changed over time. There is not a single organ in the human body that only does the job its prototype did when it first appeared hundreds of millions of years ago. Feathers first appeared to keep ancient reptiles warm. Now birds use them to fly. Is that unnatural? Fingers appeared to help our ancestors climb trees. Now we use them to play the piano. Is that unnatural? Mouths appeared to enable organisms to take food into
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