The vagina is an elastic tube that extends from the vulva to the cervix. It is lined with mucous membrane and muscle tissue, which helps to keep it lubricated and flexible. At its opening is the...
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: The elusive science behind female sexuality: exploring the complexities of the vagina.
Vaginas have an incredible ability to expand and contract depending on their owner's needs. In fact, they can stretch out up to twice their normal size during sexual intercourse and then return back...
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: The elasticity of vaginas: how they expand and contract during sex
