Hailey Bieber and Kendall Jenner have shared a rare and intimate look into their friendship.

During an episode of Bieber's YouTube series Who's In My Bathroom, released on March 12, the 24-year-old model and Keeping Up With Kardashians star opened up about their close bond while tucking into some macaroni and cheese in Bieber's bathroom (as you do...).

The two friends covered a range of topics in the video, such as noting that they first met at The Hunger Games premiere in 2012 and the sweet wedding gift Jenner's mum, 'momager' Kris Jenner, gave to the Biebers following their second wedding in 2019, as well as how their different personalities have helped their friendship flourish.

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The pair also played a game of 'Never Have I Ever', which shed some light on some of their most intimate secrets.

kendall jenner and hailey bieber play game
YouTube

In the game, the celebrity BFFs asked each other a series of questions and downed shots of Jenner's tequila, 818, if they had done something the other questioned them about.

On one occasion, the pair both took a drink when asked if they'd ever had a guy write a song about them, as well as when they responded to whether they'd ever kissed the same person.

Neither of the models downed a shot when asked if they'd ever cheated on someone, and both replied 'I have never' to the question, as well as revealing that neither have had a one-night stand.

kendall jenner and hailey baldwin
Noel Vasquez//Getty Images

In the episode, Bieber and Jenner also discussed their love and support for each other over the years. Bieber noted how her friend has consistently been there for her, recalling their friendship has seen her break down emotionally in her fellow model's home on numerous occasion.

'I was, like, crying in this girl's guest bedroom for, like, two years straight,' Bieber recalled.

Jenner responded, confirming that the support goes both ways in their friendship.

'I feel like both you and I have experienced—whether it be business, like self, love, like whatever it is—like, I feel like we've both seen each other, like, thrive at different times than others…and we've been there for each other through it all and not, like, let it get in the way of our friendship, which I think is, like, really special and important,' she added.

Watch the full game in the YouTube link above.

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