Will Smith's son and Kim Kardashian's baby sister - a new generation of Hollywood couples?

With his family's talent and the Kardashian business acumen, this 'relationship' could take the next generation of fame to another level

Move over Brangelina. If reports that Will Smith’s son and Kim Kardashian’s sister are dating prove to be true then get ready for a union of Hollywood dynasties to trounce all others.

Jaden Smith and Kylie Jenner were spotted having lunch at the less-than-glamorous Caffé Nero in London’s Piccadilly Circus on Sunday. US Weekly subsequently ran a story saying the pair, who have been “friends forever”, recently began a relationship.

The son of the Independence Day and Fresh Prince of Bel-Air actor is just 14 but is already forging an impressive career as an actor, rapper and dancer. He starred in 2010 film Karate Kid and with his father in 2006’s The Pursuit of Happyness. He is the son of actress-singer-businesswoman Jada Pinkett Smith, and the sister of Willow Smith, 12, another musical talent whose career (notable songs include “Whip My Hair” and “21 Century Girl”) has been similarly precocious.

Click here or on "View Images" for Hollywood dynasties in pictures

Kylie,15, is the daughter of Olympian Bruce Jenner and businesswoman Kris Jenner. The latter catapulted her family of six children (Kourtney, Kim, Khloe, Robert Jr, Kendall and Kylie) to fame via reality television show Keeping Up with the Kardashians. The pressure to keep up has mostly been lavished on the elder siblings but it seems that baby of the family Kylie is set to take up the showbiz mantle.

With his family's connections and natural talent and her family's ability to eke a book deal/ television appearance/ modelling contract out of an everyday task these two together will be huge.

Things weren't off to a brilliant start this weekend if they are publicity hungry, however. Jaden and Kylie were in London to help their pal Justin Bieber to celebrate his 19 birthday. But things didn’t go well for the Canadian pop sensation on Friday night as one problem with having similarly famous chums at your bash is everyone knows when they are underage.

Bieber had reportedly forked out £10,000 for circus-themed party at Cirque du Soir club but the evening was cut short after his entourage clashed with security staff. The presence of teens Jaden and Ella-Paige Roberts Clarke, 17, “caused problems” according to US Weekly although Bieber denied this on his Twitter account.

Bieber later tweeted “worst birthday” and was seen looking dejected leaving his London hotel the next morning.

Next generation of fame family tree:

Tony Richardson and Vanessa Redgrave >>> Joely Richardson, Natasha Richardson

Bob Geldof and Paula Yates>>>Peaches Geldof, Pixie Geldof

Kirk Douglas and Diana Dill >>> Michael Douglas and Diandra Luker>>>Cameron Douglas

Tony Curtis and Janet Leigh>>> Jamie Lee Curtis

Eddie Fisher and Debbie Reynolds >>> Carrie Fisher

Goldie Hawn and Bill Hudson >>> Kate Hudson

Jon Voight and Marcheline >>> Angelina Jolie and Brad Pitt >>> Shiloh Jolie-Pitt, Maddox Jolie-Pitt, Zahara Jolie-Pitt, Knox Leon Jolie-Pitt, Pax Thien Jolie-Pitt, Vivienne Marcheline Jolie-Pitt.

Lloyd Bridges and Dorothy Dean Bridges >>> Beau Bridges, Jeff Bridges

Martin Sheen and Janet Sheen >>> Charlie Sheen

Francis Ford Coppola and Eleanor Coppola >>>Sofia Coppola

Joel Grey and Jo Wilder >>> Jennifer Grey

Ingrid Bergman and Roberto Rossellini >>> Isabella Rossillini

Blythe Danner and Bruce Paltrow >>> Gwyneth Paltrow