Key Points:

A new survey suggests that New Zealand women are the most promiscuous in the world.

The survey, by condom firm Durex, has found New Zealand women have an average of more than 20 sexual partners in their lifetimes. The global average is just 7.3 partners.

New Zealand is also unusual for being the only country where women report having more sexual partners than men.

Durex spokeswoman Kristie Penwarden says despite these findings, there is a safe-sex warning hidden in the figures. She says New Zealanders are not the best when it comes to using condoms, and that is reflected in the country's high rates of sexually transmitted infections.