Kim Kardashian in 2015 (left) Nikki and Kim in a photobooth in LA back in school days (centre and right)

Grinning widely with wire ­braces on her teeth, it is hard to believe that this dorky ­teenager would become one of the most famous women in the world.

Kim Kardashian was then just 15 and loved nothing more than larking about with her best friend and top US fashion designer Nikki Lund.

Pulling a funny face as she and Nikki posed for photobooth snaps, the ­schoolgirl was studious and well behaved.

When she was a teenager she loved the Spice Girls and J-Lo and couldn’t wait to own her own clothes shop.

Kim, 34, rocked up to Paris Fashion Week on Friday with her new blonde locks, but her career as the world’s most famous reality television star only started after the tragic loss of her father.

Top Hollywood lawyer Rob Kardashian – the man who got OJ Simpson acquitted of his murder charge in 1995 – was the parent who made sure Kim lived a normal life and worked hard at school.

Schoolfriend Nikki Lund says Kim was "absolutely heartbroken" when Rob died after losing his battle with oesophageal cancer in 2003.

Nikki recalled: "Kim was a daddy’s girl, she adored her father and when she died she was devastated.

"She never wanted to be famous, it just kind of happened. She was always the quiet girl sitting in the corner while we were all being loud.

“Rob was a very successful man, he had a great sense of humour – so has Kim and I think that’s where she gets it from. We all loved Rob.

Rob, was married to Kim’s mother Kris Jenner until 1991, and took Kim and her siblings, Kourtney, now 35, Khloe, 30, and Rob Jnr, 27, to church every week.

After their parents split, the children would spend half of the week with Rob in Benedict Canyon near Beverly Hills, and the other with Kris, 59, with then husband and former US Olympic star Bruce Jenner in Malibu.

Nikki, who has known Kim since she was ten, said: “Rob is the one who shaped Kim. When he died it took her a very long time to get over it.

Kim and her mother and sisters have reportedly just signed a £65million deal to make another four series of Keeping Up With the Kardashians.

But the big-bummed beauty is the last person Nikki, has a hit This Is It in the UK charts, thought would end up being famous – because she was just so “normal”.

Nikki, now 33, explained: “Kim was studious, she wanted to be a good student.

“She worked hard at school, she didn’t get straight A’s but the teachers liked her. She’d never bunk off school.

“She also fancied P Diddy and Jamie Foxx – Kim always liked African-American men.”

Talking about her teenager years with Kim, she said they would watch US soap Melrose Place and teen-angst drama My So Called Life, ­starring Claire Danes, and they would also talk about diets.

Nikki said: “Kim was always on some sort of diet, we all were. She did the no-carbs thing and would ask for a burger with no bun.

“She was conscious of what she looked like, she didn’t have her bum then but the boys liked her. Kim got a lot of attention back then.”

Above all, though, Nikki says Kim is the best friend you can have and that you could “trust her with your life”.

Despite growing up in the playground of the rich and famous, Kim had no desire to be a celebrity.

Kim, who is now worth about ­£50million, had only two ambitions from an early age – to work in a clothes shop and be a good mum.

Kim married rapper Kanye West last year and the couple have a daughter together, 21-month-old North.