Aspiring supermodel Kendall, 18, has now allegedly decided to 'outdo' Kim when it comes to modelling.
A source told a British magazine: "Kendall finds Kim taking her clothes off really embarrassing and decided to prove that she could outdo her big sister."
According to the reports, Kendall now wants nothing more to do with the Kardashian name as she thinks it's harming her reputation as a 'serious' model.
The source continued: "She's told Kim she doesn't want to be publicly associated with the Kardashian circus and its trashy reputation anymore."
Kendall recently admitted that she banned Kim from her debut runway show, but now it's been suggested that she's imposed the ban on all of her future fashion shows.
Reports emerged this week that Kendall was bullied by the other supermodels at New York Fashion Week.
The other girls were said to resent her being in the show, with some even going as far as putting cigarettes out in her drinks.
A source told Radar Online: "They started acting so b*tchy [towards Kendall]. Models can be cruel, especially with someone new and entitled."
Speaking previously, Kendall said: "I went on castings and some people weren't feeling me because of my name. But it was great when people didn't recognise me. I was like, 'Thank you. Please don't recognise me.'"