No-strings-attached relationships: are they inevitably a bad idea?

Teasing is good for relationships, according to the New York Times.

Star files for restraining order against obsessive fan.

The difference between being masculine and being a jerk.

Dating dos and don'ts from a man who went on 500 dates.

Facebook and a rumored spin-off: your brunch conversation is now served.

Phone sex with a computer-generated voice—this machine talks dirty.

Older women dating younger men make the case for being a "cougar."

Virtual reality sex can affect real-life relationships.

Alone under the mistletoe? Don't sweat it—single gals can have a sweet, sexy holiday, too!

President Bush's marriage, AARP on sex and the science of dirty old men.

Tips for surviving holiday parties at work.

A Daily Beast scribe writes about the rich "sugar daddy" footing her bills.