Ever Wonder Why We Kiss?

Your knee is crushing my tinkledinker. Photo by Warner Bros.

Making Out. Snogging. Canoodling. Kissing. An activity that is teetering on the edge of gross when viewed objectively, but one that most everyone enjoys in practice. But why do we kiss? What compels us to attach our lips to the lips of another human being? Or push the envelope even further and indulge in the tongue-to-tongue tango?

Kissing has been a noteworthy activity throughout history. The Indian Kama Sutra, the…