Blonde Ambition: 'Selfish' Kim Kardashian Went Platinum To 'Steal Spotlight' From Sister Kendall Jenner At Paris Fashion Week

Kendall Jenner has grown accustomed to mean girl behavior from other runway models. But as the 19-year-old runway model and reality star hits the catwalk at Paris Fashion Week, a Keeping up with the Kardashians family insider says that it is not other models trying to steal her spotlight, but her own half sister, Kim Kardashian!

The 34-year-old newly-blonde bombshell unveiled her platinum locks after she arrived in Paris, France, last week and the source tells RadarOnline.com exclusively, "The whole family, aside from Kris, of course, thinks that Kim's intentions with going blonde are purely selfish."

"She is supposed to be in Paris supporting Kendall, and the fact that she dyed her hair and did this drastic overhaul to one-up her younger sister is quite pathetic."

"Kim simply cannot stand anyone else in the family taking her spotlight and she will go to any lengths to make sure that it is always the Kim show, guest starring her sisters," the insider tells Radar.

"But the blonde thing is not going to stick. As soon as she gets back to L.A. she is going to go back to brunette," the source claims.

In what is perhaps a subtle attempt at throwing the shade back at Kim, Kendall took to her Instagram yesterday and re-posted a photo of sisters Khloe Kardashian and Kylie Jenner, along with rumored boyfriend Tyga from an Oscars after-party.

In the caption, she wrote, "Missing the fam." It seemed like an obvious dig since Jenner is currently surrounded by family members including Kim and her rapper hubby Kanye West, along with momager, Kris Jenner.