andresr/E+/Getty Images “In terms of skill, kissing is about the lips first,” says Levine. “Once you master pressure and lip technique you can then figure out tongue motions.” When it ...

A serious, tongue-tangling French kiss exercises ... Even the genitals do not have the sensitivity that the lips have." For man and animals, kissing is a bonding behavior, she says.

Kissing is a big part of human culture. According to ancient cuneiform tablets found in Iraq, humans have been smooching since at least 2500 B.C. Around the world today, many societies share ...