Inside Kendall Jenner's 'unusual' secret summit with Jacob Elordi... as family friends reveal her 'anxious' fear - and a 'sad and lonely' private heartbreak

As a Kardashian-Jenner it is no easy feat convincing people when you find love.

Congratulatory messages are often drowned out by accusations of a 'showmance' or a 'PR stunt,' with critics often adamant that these unions are the strategic moves of family mastermind and matriarch .

And the pattern has been no different for , 30, who has been pictured on with her new boyfriend, Australian acting heartthrob , 29, since they first started dating earlier this year.

But critics may soon be humbled, for the Daily Mail has learned Kendall has taken a major step in their relationship.

After being implored to take Elordi out of the 'friend zone' by her younger sister, , Kendall has introduced the Wuthering Heights actor to her mom Kris, as well as her sisters Kim, Khloe and , and . It is not known if Elordi has met Kendall's half-brother .

Now, Kendall has made the rare and somewhat 'unusual' move of introducing Elordi to her father, .

The Daily Mail has contacted representatives for Kendall, Jacob and Caitlyn for comment.

The 76-year-old former Olympian has become estranged from the clan in recent years following comments she has made about the family, and her conservative politics, in particular voicing her support for President Donald Trump.

But an insider told the Daily Mail: 'Kendall finally introduced Jacob to Caitlyn in May.'

'This is a very big deal because Kendall does not introduce a lot of her friends or lovers to Caitlyn,' they continued. 'Everyone meets Kris right off the bat because she is so social and involved with her kids, but not Caitlyn, who is more of a recluse these days, so this is very special and unusual.'

We are told the extremely private meeting was held at Caitlyn's $3.5 million hilltop estate in Malibu.

'Kendall brought Jacob over to Caitlyn's house for a casual meet and greet,' said our insider. 'They hung out for a while one afternoon, it was not a big deal, it was super chill.'

The insider said there were no hiccups, adding: 'Kendall said it was "good," that everyone liked each other and it was nice, no talk about politics or Hollywood, just a nice chat.'

The highly anticipated meeting was planned as a relaxed event to calm down Jenner.

'Kendall has anxiety, so she wanted it to be super low key, she didn't want any drama at all,' our insider said.

The family was close, but grew apart after comments Caitlyn made when she went public with her transition. They also struggle to agree on politics (Khloe, Kris, Kendall, Kourtney, Kim, North West, Caitlyn and Kylie piuctured in New York City in 2016)