Some people may have locked their lips when the clock struck midnight, signaling the start of a new year. But why?

Stories have long been swapped on awkward first kisses and princesses smooching frogs, but a new study suggests the earliest instance of two lips pressing together happened up to 21 million years ago ...

New research reveals that a single 10-second smooch can pass 80 million bacteria between partners. Doctors shed some light ...

Remember that first kiss? It could have been the love of your life, a one-night stand or someone you went on a couple of dates with. Artist Dio Cramer hopes you’ll submit that memory and place to ...