Kylie Jenner, Jaden Smith Hang Out Together In London

Kendall & Kylie for PacSun
The Jenner girls pose for their new clothing line.
Just friends?

Kylie Jenner enjoyed a casual stroll with Jaden Smith, the son of actor Will Smith, in London on Sunday.

The two were photographed walking down the street together after having lunch at Caffè Nero.

They also had dinner together at Nobu the night before.

The young duo — who are 15 and 14, respectively — looked appropriately matchy-matchy in black ensembles. Jenner in particular looked gorgeous in a black nylon puffy coat and motorcycle boots.

No word on whether they’re just friends or anything more — but they look adorable together, either way.

Meanwhile, Smith was at the center of another celebrity story over the weekend — this time, involving Justin Bieber.

After the 19-year-old singer abruptly left his birthday party at Cirque du Soir on Friday, rumors circulated that he was kicked out for, among other reasons, trying to let underage Smith into the club.

“The funny moment when people believe I brought underage people to a club.. U think Will is letting his 14 year old in a club, I don’t think so,” Bieber — who tweeted “Worst birthday” on Friday, wrote on Instagram.

“2nd I love how the club wanted to give the press another reason to why we didn’t stay at their weak ass club so they wouldn’t look bad for me walking in and right back out,” he continued.

“Btw it wasn’t the worst bday cuz all my friends from back home flew in I was just mad in the moment.”

The club had also alleged that Bieber and his friends had smelled of marijuana.

Worst birthday, indeed.