The Kardashian-Jenner family are no strangers to playing out their relationships in the full glare of the public - but Kendall is the exception.
Unlike her sisters - whose every romantic twist and turn is played out on Keeping Up With the Kardashians - Kendall keeps her cards close to her chest, and her relationships even closer.
The 23-year-old model has been quietly dating NBA star Ben Simmons for almost a year now - not that you'd know it!
It was finally dragged out of her by US chat show host Ellen DeGeneres in February, who managed to get the model to admit she'd been seeing Ben 'for a bit'.
So what's there story and how has one of the biggest reality stars in the world managed to keep things so private?
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Back in June 2018, it was thought that Kendall was seeing best mate Gigi and Bella Hadid's brother Anwar after they were apparently spotted snogging at a party.
But days later though, she was seen shopping with Ben Simmons in Beverly Hills, sending the gossip heading in a totally different direction.
Us Weekly quickly reported that the pair were "hanging out quite a bit" and that they were "dating and exclusive, though not official."
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And the gossip upped gear in July when fans caught them cuddling in the background of Khloe Kardashian's Instagram story.
By August they'd gone public, with Kendall celebrating Ben's birthday in an Instagram video before taking him on a couples' holiday with Khloe and her now ex, Tristan Thompson.
There was even talk of them moving in together.
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But by the end of August it was apparently all over and Kendall was allegedly seen snogging Anwar once more at a fashion week party.
He was reportedly bereft, though, when she reconciled with sports star Ben two months later.
Hinting at his devastation, Anwar wrote on Instagram, "I wonder if I could be loved as deeply as I love," and "Why are you still in my mind?"
As for Kendall, things were going from strength-to-strength with Ben, who began openly commenting on her sexy social media posts.
"Come here..." he wrote on one bikini snap, and sources said their relationship had become "very serious."
So serious, the Kendall started sitting next to his mum at his basketball games.
“They’re not serious to the point where they’d get engaged any time soon, but they’re really enjoying their relationship and love spending as much time as possible together," a source said.
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