updated 10/17/2013 AT 3:00 PM ET
•originally published 10/17/2013 AT 1:00 PM ET
It’s been hard to keep up with the romantic strife in the Kardashian family lately, but it seems at least one member of the clan is happily in love.
A source tells PEOPLE that Kendall Jenner, 17, has made a love connection with rapper Young Jinsu, 21.
“They’re dating – it’s been at least a few months,” says a source close to the couple. “They’ve been getting closer recently, and they’ve been hanging out all the time.”
The source says the couple have kept their relationship quiet but plan to go more public after her 18th birthday on Nov. 3. “They have that spark right now – they’re just really feeling each other,” says the source. “They’re not putting it out there yet.”
The rapper recently posted a photo on Instagram of what appears to be him and Jenner, who is making a heart shape in the sky with her hands. Kendall’s sister Kylie, 16 – who has been seen in the company of Jayden Smith and rapper L’il Twist, a friend of Jinsu’s – posted the pic to Instagram as well.
Jinsu was previously linked to Justin Bieber’s ex, Jasmine Villegas. Back in June, he feuded with the superstar on Twitter. But now, he only has eyes for Kendall, whom the source says he started dating – and “falling hard for” – this past summer.
“He’s so sweet,” says the source. “He kind of reminds you of Chris Brown, but way more charming and really talented. He’s been working with a lot of big-time producers and artists recently.”
Meantime, Kendall’s fast-lane lifestyle with Kylie has raised a few eyebrows. On Oct. 15, the pair were spied in the wee hours at racy L.A. Nightclub Vignette with big sister Khloé Kardashian and Scott Disick.