After spending a staggering $10 million on her wedding, we certainly got a taste of just how competitive Kim Kardashian can be.

Splashing out colossal cash in a desperate bid to throw the best celebrity wedding of all time, Kim soon revealed her competitive streak.

It’s been just days since she tied the knot to basketball player Kris Humphries, 26, in an over-the-top, luxury ceremony but Kim has already moved onto her next conquest.

According to US sources, the reality TV star is going head-to-head with sister Khole, in a frantic race to fall pregnant first.

Now she’s bagged her perfect fella, the star is moving on to her next dream, and she’ll stop at nothing to achieve it…

All to aware that her biological clock is ticking and middle age is fast approaching, Kim, 30, is now focusing all her energy on becoming a new mum, and is keen to beat sibling Khloe Kardashian to the post.

Apparently the newlyweds started for a baby as soon as they landed in Capri Italy for a romantic honeymoon.

‘It’s now a playful competition between the girls to see who can get pregnant first,’ reports an insider close to the American.

The wedding ring is barely on the finger, but the stars sudden impulse to begin a family comes as no surprise to fans.

The new celebrity power couple struck up a whirlwind romance after they met in February. Just a handful of months on, the pair got officially wed.

While many members of the public and media doubt the newly committed couple will last a year after dating for such as short while, others are sure the elaborate nuptial was just a career booster, and having a baby is a very bad idea.

Meanwhile the other woman in the race, Khloe, 27, has already been trying for a bonnie baby with hubby, Lamar Odom, 3, for two years now.

Who will be the first to get the bun in the oven…?