Kendall Jenner arrives on the red carpet at the Much Music Video Awards (MMVA) in Toronto, June 15, 2014.
Kendall Jenner arrives on the red carpet at the MuchMusic Video Awards (MMVA) in Toronto, June 15, 2014. REUTERS/Mark Blinch REUTERS

First it was the Kardashian sisters that embarrassed their mom Kris Jenner by calling her names like "MILF" and "attention seeker," now the Jenner sisters are following suit. Kendall Jenner has however crossed the line and called her mother "a desperate f---ing wh-re" on the latest episode of "Keeping Up With The Kardashians." The young Jenner could not tolerate the fact that her mother was enjoying a dance just like a young girl and objected to it.

According to Life and Style magazine, Kendall asked her mother to act her age and not embarrass her during a Soul Cycle session where she got disturbed by Kris' enthusiasm during the class. The series of insults started when Kendall said to the momager: "Do you have always have to be the center of attention? It's SO annoying."

Kendall's first comment did not stop Kris from having a good time dancing to the music and she continued with her act, much to her model daughter's disappointment.

"Eww mom, you're so embarrassing, you need to act your age," Kendall said, adding her most inappropriate comment slowly when she said, "Desperate fu--ing whore" to her mother.

Kris did not appear to hear it or chose to ignore it completely as she continued with her dancing and said that she finds this class just like going to the clubs. Kendall however still was in no mood to spare her mother and asked her why she has to go to the clubs at all as it is "so embarrassing."

The author to new book, "Rebels: City of Indra" then turned to her elder sister Khloe and made her last statement, "She's an embarrassment to the family." Kris had no choice but to react coolly by saying that she can hear to her teenage daughter's words.

It is not the first time that the sisters have insulted their mother on camera. During the first episode of new season of KUWTK, Kim Kardashian and her sisters have called their mother Kris Jenner by the controversial name "MILF" and revealed that they are quite "embarrassed" by the way their momager and the Kardashian matriarch reveals her 58-year-old fit and voluptuous body for the cameras. Read more about it here.

According to various Web sites like Perezhilton.com, the Kris-Jenner bashing seems scripted and a desperate attempt by the channel to pump up the falling ratings of the reality show.