This flat tubular structure is the female *, which is a special structure for females.

How do you get pregnant? How do you have an abortion? A video demonstration

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3D-printed small toy

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Digital pickled vegetables: one is better than ten.

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【男生慎入】女生第一次看小电影的体验

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The human heart beats roughly 2.5 to 3 billion times over a lifetime—but what happens if, for some r

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A woman's clitoris is approximately 7-9 cm long and consists of three parts. (Educational科普 informat

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What would happen if Nobita and Shizuka swapped bodies?

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Future Notebook (concerning the fate of mankind)

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An excavator can dig 300 tons in a single scoop—so why don’t we keep building even bigger ones? #Sci

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The boy has super powers and pulls all the girls in the school into his mind for in-depth communicat

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A human specimen is sliced from foot to head, cut into nearly 100 thin sections.

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The male protagonist was cursed and turned into a girl...

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【HISHE】Jurassic Park Parody 1

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What should guys do after having sex with a drunk man to avoid being charged with rape? #LegalEducat

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Why do boys wear underwear?

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The “double-pressure clove knot” tying method

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Why do you like white tiger? What's so good about White Tiger?

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Only boys understand.

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Why do I feel resistant to physical contact with girls?

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Bikini Bottom really exists in the world! Where is Bikini Beach? How are tropical coral reefs formed

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