To begin I want you to know that the longest kiss in the story lasts 58 hours, 35 minutes and 58 seconds
It could be said that the kisses as well as a smile are behaviors of our species and not specific behaviors of some culture or region
When we kiss our body releases a great cocktail of Endorphin, these are responsible for making us feel very good, you could say that is a natural drug of our body.
To be precise our body releases dopamine, adrenaline, oxytocin and serotonin and as I just mentioned this makes us feel excellent
When we kiss our brain also creates a relationship of trust and pleasure with the person we are kissing all these sensations and substances in our body usually leave a strong impact on our memory, that is why most people still remember their first kiss.
Kissing is also an excellent method to find your perfect partner, someone may like you a lot physically but when kissing it all disappears suddenly and is totally normal, when we kiss our body emits and receives sensory signals at a subconscious level, a woman can Know the levels of testosterone and the quality of your immune system in a man by means of a kiss.
So another way to see a kiss is a way of checking the compatibility of body chemistry with the person you are kissing.
Remember that a kiss is usually a ritual of trust and vulnerability which is shared only with the person you love.
Or depending on the situation can also be something we do with some stranger on a Saturday night to be drinking more.