Sensitivity of the lips is 200 times higher than that of the fingers.
Two weeks of kissing
On the average, a person spends 20,160 minutes (two weeks) of his life on kissing.
More Kiss Facts
Passionate kissing burns 6.4 calories a minute. A Hershey's kiss contains 26 calories, which takes five minutes of walking-or about four minutes of kissing-to burn off.
According to U.S. statistics, an American woman would kiss an average of 80 men before she gets married.