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In the womb.

At an early stage of embryo the genitalia are the same, for both male and female. Later on they form into a vagina or penis, before birth.

Interestingly, the male genitalia is formed from a vagina. A male can observe scar tissue, right down the middle of the scrotum and up through the underside of the penis, like a welded seam.

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13y ago

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