Cameron Diaz not ready for kids

Cameron Diaz

Sporting a baby bump for her latest movie has failed to make Cameron Diaz broody.

The 39-year-old star - who is reportedly dating P. Diddy - plays Julie, the pregnant host of a weight loss and fitness show, in 'What To Expect When You're Expecting' and Cameron has admitted she didn't enjoy wearing the fake belly because it made sitting down difficult.

She told E! News: "I think the only thing that's like being pregnant with that [fake] pregnancy belly was it was really hard to sit down.

"Oh my gosh, I'm not worried about [having kids soon]. I don't think that belly is what I should base wanting to be a mama on!"

However, Cameron did enjoy her birthing scenes and revealed the other actresses who play expectant women in the movie, including Jennifer Lopez, Anna Kendrick, Brooklyn Decker and Elizabeth Banks, did a great job at pretending to be in labour.

She added: "That was fun, really fun. In this movie, everybody's delivery scene is amazing."

Cameron - who has dated a string of Hollywood hunks, including Justin Timberlake, Jared Leto and Matt Dillon - has previously claimed she doesn't want to close herself off to any opportunity in life by settling down and having children.

When quizzed about her thoughts on marriage and children, she said: "What about it? If I say, 'This is how I'm going to live my life,' I am closing myself off to all these other possibilities. I'm the kind of girl who likes to be open to every possibility, who is open to all my options."