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Sperm is a white or grey liquid, emitted from the urethra (tube in the penis) on ejaculation.The purpose of semen is purely for reproduction, as a vehicle to carry the spermatozoa into the female reproductive tract. Although ejaculation of semen accompanies orgasm and sexual pleasure, erection and orgasm are controlled by separate mechanisms and semen emission is not essential for enjoyable sex in most people.

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14y ago

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