The design concept of the zero reverse thrust vagina: improve the smoothness during lovemaking, eliminate the air pressure generated in the doll’s vagina due to the closed environment, allow the penis to enter and exit the doll’s vagina naturally, and enhance the lovemaking experience.
Please ignore the dividing line
The zero-reverse-thrust vagina design allows the penis to enter and exit freely.
*Here we use the principle of mechanics to solve this long-standing problem.
The interior of the zero reverse thrust vagina is sealed, and we have rebuilt an air-filled isolation layer around the inner vagina. When the penis enters the inner vagina, the inner vagina will expand, and at this time the air isolation layer can play a good buffering role and reduce the reaction force on the penis.
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