Forbes contributors publish independent expert analyses and insights. Mark Travers writes about the world of psychology. "First kiss beliefs" include idealized beliefs that your first kiss with a new ...

In the words of Dua Lipa, one kiss is all it took about 21 million years ago. That's roughly when scientists estimate that kissing first emerged in the common ancestor of humans and other great apes.

There are many great places in the world to steal a kiss — at bus shelters and on front porches; under umbrellas and in the back row at the movies. But sharing a smooch in a photo booth takes things ...

Snogging. Smooching. Canoodling. While such kissing is often depicted as a universal behavior in sexual encounters and romantic relationships around the world, a growing body of anthropological and ...