Another Kardashian feud? Kendall shuns Kim AND Kylie!

Kendall Jenner celebrated her 19th birthday yesterday with a family lunch in Los Angeles – though not all the family were invited along!

While Kourtney, Khloé and mum Kris were all present for the gathering in Bel Air, Kim and Kylie were nowhere to be seen. 

Far from having an important engagement to attend, Kylie was pictured leaving a hair salon in Beverly Hills around the same time as the family event took place.

Wow… that's pretty much the Kardashian version of the "I'm washing my hair that night" excuse! 

Her absence sparked rumours that all is not well between the Jenner sisters, with a source telling RadarOnline that the two have not been getting on lately. "It is a competition between them now as to who can be the more famous Jenner and it is destroying their relationship," said the insider.

As for big sis Kim, she apparently was told nothing about Kendall's birthday plans, which included the family lunch and a girls' dinner later that evening. 

Khloé spilled the beans in an interview with People, saying, "I asked Kim, 'Oh, are you going tonight?' and she was like, 'I didn't know Kendall was doing anything!' I don't know if she was late to be invited, but I'm invited, so I feel good about that!" 

Despite being reportedly left off the invite list, Kim was the first to wish her half-sister a happy birthday, with a cute message on Instagram shortly after midnight yesterday. The star posted a stunning picture of Kendall along with the caption, "To the sweetest girl in the world Happy Birthday I love you so much @kendalljenner." 

Kylie remained silent on social media – we can only hope she gave Kendall her greetings in person?!

Even without two members of the Kardashian clan there, the birthday girl was clearly delighted with how her day went – she posted this appreciative snap to Instagram yesterday with the caption, "love on top of LOVE. so much love today!!!"

Happy birthday, Kendall!