The way we flirt now, what makes sex great and is adultery an addiction?

Ever notice that guys are a little more tongue-y than we are? There's a biological explanation.

Locking lips looks good in these classic on-screen movie romances.

Office dating rules, being a better kisser and when should you to kill your Match.com profile?

Morning breath's mysterious appeal, when it comes from someone you love.

Locking lips is much more chemically complicated than we once thought.

The singer would rather die than go without sex for a year.

An interview with John Updike, a fairy tale prince and scientific dating advice.

The singer swears off sex since breaking up with boyfriend.

The Bachelor Jason Mesnick hints at what he's looking for in a second wife.

Kids tell us how to date, love and marry.

One woman realizes her ex had a thing for Jews.

After a breakup or divorce, have you ever hooked up with your ex?