Cameron Diaz's "favourite sport" is sex.

The 'Bad Teacher actress - who is currently dating baseball star Alex 'A-Rod' Rodriguez - explained she is "always in the mood" to have sex.

She said: "Sex is the sexiest word in the English language. Just the word is sexy to me. There's something to it, don't you think? Sex is my favourite sport.

"What's the quickest way to get me in the mood? I'm always in the mood."

Despite loving the sensual aspects of her relationship, the 38-year-old star - who has previously dated the likes of Justin Timberlake, Jared Leto and Matt Dillon - admitted she is in no rush to get married, and would rather make her "own rules".

Cameron added to the News of the World newspaper: "I don't think we should live our lives in relationships based off old traditions that don't suit our world any longer. I think a lot of people are married to people that they're not romantic with anymore.

"We have to make our own rules. I just didn't ever marry anybody that I then had to get divorced from. We break up. We move on."