Although he was there to talk about his newest business venture, he couldn't help but dish a few tidbits about those royal relatives of his.
He admitted he was really nervous when he gave a reading at Kate and William's wedding back in 2011: "The reading? I felt -- yes, I was absolutely terrified."
James Middleton, Kate Middleton, family
James Middleton dishes about royal relatives William and Kate
LONDON, ENGLAND - SEPTEMBER 12: James Middleton and Pippa Middleton attend an exhibition match of wheelchair rugby at the Invictus Games at Copperbox, Queen Elizabeth Park on September 12, 2014 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - OCTOBER 23: Pippa and James Middleton arrive at the Chapel Royal in St James's Palace, ahead of the christening of the three month-old Prince George of Cambridge by the Archbishop of Canterbury on October 23, 2013 in London, England. (Photo by John Stillwell - WPA Pool /Getty Images)
ANNAPOLIS, MD - JUNE 20: Pippa Middleton is seen with her brother, James Middleton, after finishing the Race Across America 2014 on June 20, 2014 in Annapolis, Maryland. (Photo by Larry French/Getty Images)
LONDON, ENGLAND - APRIL 30: (L-R) Carole, James, Michael and Philippa Middleton depart the Goring Hotel in London on April 30, 2011 in London, England. (Photo by Ian Gavan/GP/Getty Images)
Catherine, Duchess Of Cambridge Visits The National Portrait Gallery's Road To 2012: Aiming High Exhibition In London. (Photo by Mark Cuthbert/UK Press via Getty Images)
Catherine, Duchess of Cambridge and her sister Pippa Middleton (L) watch from the Royal Box during the men's singles final match between Britain's Andy Murray and Switzerland's Roger Federer on Centre Court on day 13 of the 2012 Wimbledon Championships tennis tournament at the All England Tennis Club in Wimbledon, southwest London, on July 8, 2012. AFP PHOTO / LEON NEAL RESTRICTED TO EDITORIAL USE (Photo credit should read LEON NEAL/AFP/Getty Images)
Catherine, Duchess Of Cambridge After The Thistle Service At St Giles' Cathedral, Edinburgh, For The Installation Of Prince William As A Knight Of The Thistle. (Photo by Mark Cuthbert/UK Press via Getty Images)
Catherine, Duchess of Cambridge (R) and her sister Pippa Middleton (L) talk in the Royal Box before the men's singles final match between Britain's Andy Murray and Switzerland's Roger Federer on Centre Court on day 13 of the 2012 Wimbledon Championships tennis tournament at the All England Tennis Club in Wimbledon, southwest London, on July 8, 2012. AFP PHOTO / LEON NEAL RESTRICTED TO EDITORIAL USE (Photo credit should read LEON NEAL/AFP/GettyImages)
Kate Middleton, the fiancee to Britain's Prince William, smiles during a Naming Ceremony and Service of Dedication for the Royal National Lifeboat Institution's (RLNI) new Atlantic 85 Lifeboat, the 'Hereford Endeavour' at the RNLI Lifeboat Station in Anglesey, near Bangor in Wales, on February 24, 2011. Kate Middleton got a taste of life as a working royal Thursday when she and Prince William dedicated a lifeboat in their first official appearance since their engagement. Hundreds of people cheered as the smiling 29-year-old princess-to-be poured a bottle of champagne over the vessel in a dedication service at the lifeboat station Trearddur Bay on Anglesey, northwest Wales. AFP PHOTO/PHIL NOBLE/POOL (Photo credit should read PHIL NOBLE/AFP/GettyImages)
(Left To Right) Prince Philip The Duke Of Edinburgh, Lady Louise Windsor, Catherine Duchess Of Cambridge, Prince William Duke Of Cambridge, Princess Eugenie, Prince Harry And Princess Beatrice On The Balcony Of Buckingham Palace After The Trooping The Colour Ceremony In London. (Photo by Julian Parker/UK Press via Getty Images)
Hm Queen Elizabeth Ll And Catherine, Duchess Of Cambridge During The Jubilee Visit To Vernon Park In Nottingham. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - DECEMBER 06: The Duchess of Cambridge, Catherine Middleton and Prince William, Duke of Cambridge leave the King Edward VII hospital where she has been treated for hyperemesis gravidarum, extreme morning sickness at King Edward VII Hospital on December 6, 2012 in London, England. (Photo by Danny Martindale/WireImage)
LONDON, UNITED KINGDOM - DECEMBER 05: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Pippa Middleton and James Middleton leave the King Edward VII Hospital after visiting their pregnant sister Catherine, Duchess of Cambridge who is being treated for acute morning sickness on December 05, 2012 in London, England. (Photo by Indigo/Getty Images)
Pippa (C) and James Middleton, sister and brother of Catherine Middleton, Duchess of Cambridge watch Switzerland's Roger Federer take on Romania's Victor Hanescu in their first round match on day one of the 2013 Wimbledon Championships tennis tournament at the All England Club in Wimbledon, southwest London, on June 24, 2013. AFP PHOTO / ADRIAN DENNIS - RESTRICTED TO EDITORIAL USE (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)
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He also talked about Kate and William's trusty canine, Lupo. Turns out, the furry companion was a wedding present from James. Middleton explains, "It was my sort of ... my little treat for them was to give them a puppy, and Lupo was their gift."
Although James is most often seen out and about with his sister Pippa, he said he gets to see Kate and his nephew George on a regular basis.
James, who started the Cake Kit Company a few years ago, is once again heading in a sweet direction when it comes to business.
This year he started a company called Boomf, which specializes in edible selfies. Yep, now you can stick your face on a marshmallow. He even holds the esteemed title of "Wonka-In-Chief."