Kim Kardashian has only been a mother for less than two weeks but her sister Kourtney is already judging her parenting style.

Multiple sources report a "big argument" broke out between the Kardashian sisters, who are all living in the Jenner mansion while Kim takes care of her daughter, North West. The argument started when Kim said she plans to bring North with her when she follows boyfriend and baby daddy Kanye West on his tour around the world.

"She was disgusted when she learned Kim plans to take the baby on Kanye's European tour so soon after the birth," a source told Life & Style magazine.

Kim was not happy with her big sister trying to tell her how to take care of her daughter.

Kourtney has two children of her own, Mason and Penelope, so may be speaking from experience. However, her words of advice may do little to deter Kim from making her decision - she is known for being fun-loving and needing a glamorous life..

Radar Online reports that Kim blasted her sister and other moms, saying they had "boring and miserable lives."

"[Kim] loves the buzz of taking 10 flights in three days and always having her hair and makeup teams around and staying in luxe hotels. But she needs to know that's in the past, at least for now."

Kim and Kanye welcomed North on June 15. The little girl is reportedly set to make her television debut and first public appearance on July 15, on Kardashian's mom and manager Kris Jenner's new talk show "Kris," The International Business Times reports.