Kim Kardashian asks avatar creators to plump up her famous derrière

For most Hollywood stars, it's a case of the slimmer the better - but not for Kim Kardashian.

In fact, the reality TV star is so proud of her curvaceous figure that she was happy for creators of a phone app avatar to make her famous derrière even more plump.

The 29-year-old was involved with the design of her own iPhone application, which includes her advice on relationships, beauty, health and fashion.

Rear view: Kim Kardashian was keen for her phone app avatar to look very curvy

The animated image see her dressed in a figure hugging purple dress and towering heels.

A source tells America's Us magazine: 'Kim approved all of it.

'She asked them to revise her avatar three or four times because it didn't look right to her. She went with the biggest butt of all the options.'

The application, which fans pay to download on iTunes, was released earlier this year to promote her new self-titled perfume.

Keeping up with Kim: The reality TV star uses the application to give advice on relationships, beauty, health and fashion