Lips are amazing.  Here’s an interesting experiment.  Take a paperclip.  Unfold it just to the point where it forms a perfect U shape.  Now make the two point ends about an index finger tip width apart.  

Close your eyes.

Press the two points on the bare skin of your chest.  Press on your ribs.  Press on the tops of your legs, your shoulders, your back.  For the most part, it should feel like you are only pressing one tip on your skin.  You can’t feel the two separate tips.

Press the tips on your scalp and on your forehead.  It should start to feel more like two tips.

Now press the tips to your lower lip.  The tips feel like they are a mile apart, don’t they?

There are so many nerve endings on lips that they can explore the various intricacies of the paperclip.  Lips are used by babies and toddlers to test the taste, warmth and texture of the world around them.  Later in life, they are used to test the sincerity and honesty of a lover.  Language is the expression and representation of intelligence and thusly lips are the highly formed instruments of advanced communication.  Even the way they look makes an impression to others as to one’s fertility, health and sexuality.

A man had given all other bliss, And all his worldly worth for this, To waste his whole heart in one kiss Upon her perfect lips.”
  -Alfred Lord Tennyson

What do you think?