Have you noticed one thing? When you suck the bone marrow of goat bone (khasi ko haddi bhitra ko bone marrow ke), you can not take out it unless you close at other side. Similarly, when you kiss girls, you won't get anything unless you create vaccum inside, so that you have to close every possible openings. That's why girls want there boy's hands on ear (to close ears) and their body as close to boy's body as possile ( to avoid any possible openings) and they can feel shrinkage inside for full satisfaction.

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