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Serious: Normally at the age of 12, girls will start to have periods. Girl's bodies make beds inside them for the babies, half made of blood and the rest, water. After a period of time, the body lets out that bed and creates a new one. To be warned, girls will have PMS before (pre-menstrual syndrome/stress) periods, so watch your step! Joke: then the painters are in!

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16y ago

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