Cameron Diaz wants a bigger butt.

The 'My Sister's Keeper' star is not a fan of plastic surgery, but often contemplates getting buttock implants to make her derriere rounder.

She said: "I'd love a bigger butt, more meat on my bones. I'd love to be more voluptuous. It's just not my body type."

But for now the 36-year-old actress - who is reportedly dating Maroon 5 singer Adam Levine - is far more interested in giving the world a makeover.

She explained: "The planet needs a publicist. It's the planet, you know what I mean? She should be a star. How do we make this little planet of ours a big star? I want everybody to know who she is."

When it comes to her own fame, Cameron is finally getting used to being noticed on the street.

She added to America's Marie Claire magazine: "I just have a lot of friends. That's how I think of it. It's nice to see people smile. Every once in a while, you'll have those moments when people give you the stink eye and you're like, 'What the f**k is your problem? What, am I horrific-looking?'

"But really what they're thinking is, 'Am I seeing who I think I'm seeing?' It's just a shock. I don't have any problem with being famous. I've completely made peace with being recognisable and people wanting to peek into my life in some way."