A single kiss can leave a lasting impression, whether it's in real life or on the silver screen. But why, exactly?

The power couple's first, real smooch was even more romantic than the TV version So, of course, there are two different "first kiss" stories—their first kiss forever documented on That '70s Show, and ...

Ethan Hawke says his first real-life kiss with Gwyneth Paltrow didn’t live up to expectations, and he’s still thinking about it decades later. The Oscar-nominated actor admitted he was "disappointed" ...