Sex Doll FAQ: What is the difference between the inserted vagina and the built-in vagina?

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When you know how to use a doll, you will be more likely to explore the various functions of the product, especially the one-piece vagina and the inserted vagina. You may be stressed in life and want someone to listen to you. It is also important to use sex dolls for sex education because they can be used as visual aids in sex education courses.

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