The music swells. On-screen, the two main characters' eyes meet. They lean in, and — slowly! — their lips gently press in a romantic kiss. All the teenage girls in the audience exhale audibly.

Kissing is not a universal expression of romantic love, it turns out. Kissing is considered a sign of sexual attraction in less than half of the world's societies, according to a recent study. The ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. “The meeting of ...

Romantic kissing refers to the touching of lips between romantic partners—boyfriends, girlfriends, spouses, etc. Romantic kissing is rarely studied in sciences—aside from the very unromantic ...

For generations, passionate kisses immortalized in movies, songs and the arts have served as a thermometer of romantic affection. But current research has found that not only is romantic kissing not ...

A kiss between lovers is such a common sight these days that one might think that it's always been done, and all over the world. But a new study finds that many cultures don't feature romantic kissing ...

Kissing is not a universal expression of romantic love, it turns out. Kissing is considered a sign of sexual attraction in less than half of the world's societies, according to a recent study. The ...