Why do humans kiss as intimacy?
In: Other
People are usually pretty careful about what they put in their mouth, because it’s a good way for diseases and toxins to enter the body.
Touching your mouth to another person, especially to their mouth, is a gesture of trust and intimacy, because you’re making yourself vulnerable to them, and you’ll be safe as long as they haven’t put their mouth on too many other people who might be carrying diseases.
It’s the same kind of thing as how we greet people in various ways by showing empty hands. You’re not only showing that you’re not a threat, you’re showing that you trust the other person enough to not be protecting yourself from them.
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