Kissing is a method of demonstrating love for another being.
Don't ask me to explain how to kiss, because this isn't a sex manual.

Kissing is also a way of bringing someone back to life when they aren't breathing.
Don't ask me to explain that either. I don't understand science.

Kissing was invented by the ancient Persians in 1822 as a means of measuring body temperature. A kiss of this type lasted on average 5 seconds.

But modern kisses are more likely to last 10 seconds!

And the longest movie kiss lasts much longer, due to actors!

The longest movie kiss occurs in the romantic comedy Sleepless in Seattle.
It went on for ages!

No, I can't remember exactly how long it went on for. What do I look like, a stopwatch?!

I don't look like a stopwatch.

WOW!