*Muah*

Something I've always been fascinated by is the physiology behind kissing.  I think it's because the dentist who worked on my braces had all sorts of pictures on his wall to stare at while he was working, and one of them had a great quote about the importance of the mouth (in terms of communication, nourishment, reproduction, etc.).  Wish I could remember the exact quote.  Anyway, it always made me wonder--the obvious purpose of the mouth is to provide the body with food, a necessary item for survival.  A clear secondary purpose would be for communication.  But if you stop and think about it, reproduction and sex is a bit more mysterious.  The mouth, as an entirely separate entity from the genitals, is not exactly necessary for reproductive purposes.  Yet when you strip things to the bare bones, what is it about connecting with another person's food trap that gets us so aroused and interested in sex?  In fact, a kiss can tell us a lot about how we feel about another person and what the sexual chemistry is.  Sometimes if a kiss is bad, we know that we are no longer interested in pursuing further sexual relations with the other person.  What is it about putting two sets of lips together that is so complicated and wonderful?

I certainly don't know the answer, and I'm not sure there's an easy explanation for it.  However, lots of people attempt to address the issue in various scientific studies and articles.  Here's one that I found to be an interesting read. 

Here's another good one.

Enjoy!

Trying to stay positive,
Skeptic