Kylie Jenner and Jayden Smith stroll down the street after lunching at Cafe Nero in London together

Kylie Jenner and Jayden Smith stroll down the street after lunching at Cafe Nero in London together

*Jaden Smith and Kylie Jenner of the Kardashian clan hit the town in London on Saturday, with Jaden’s dad Will Smith tagging along as a chaperone.

Smith, 14, and Jenner, 15 – who swear they are just friends and nothing more – hit up sushi hotspot Nobu for dinner. Earlier in the day, they lunched at Cafe Nero.

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Meanwhile, Jaden’s BFF Justin Bieber celebrated his birthday at London club Cirque Du Soir on Friday, but didn’t have the greatest time due to security turning away his friends who looked under 18. There’s no word whether one of those denied was Jaden, but the young star did share that he got Biebs a little something for his special day.

“I Gave Justin His Cartier Then Went Home,” he tweeted.

Jaden Smith joins Justin Bieber at his hotel to celebrate Bieber's 19th birthday

Jaden Smith joins Justin Bieber at his hotel to celebrate Bieber’s 19th birthday

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At one point, people thought the “Karate Kid” actor was dating Kylie’s older sister Kendall, after a photo of the twosome holding hands while ice skating at Kendall’s birthday party surfaced, but the elder Jenner was quick to put those to rest.

“He is like my little brother,” she told E! News. “So funny. Never knew people talked about that.”