You hug your friend. You kiss your friend on the cheek. You plop a big, wet kiss on your friend's mouth. Wait, what was that last one? Kissing one's friends isn't as uncommon as you might think. Many ...

Kissing is a versatile expression that traverses the boundaries of romance, family ties, and friendships. Within friendships, a kiss can be a complex gesture. It might come naturally for some friends ...