On his 2011 visit to the Centrepoint charity, Ms Kichou told him she wanted to be a journalist and William encouraged her, telling her that if she achieved her dream he would give her an interview... and now that day has come.
"So, you're to Paxman me?" he jokingly asked Ms Kichou when they met at his Kensington Palace home.
During their conversation, to be published tomorrow in The Big Issue magazine sold by homeless people, William let his guard down about fatherhood and his new job with the East Anglian air ambulance.
Speaking further about his festive plans with wife Kate, George, two, and Charlotte, seven months, the Prince said: "We'll go to church as a family on Christmas Day, as we always do.
"Then we'll watch George try to tackle his presents as he tries to unwrap them. It's a very different experience at Christmas, having a family of your own.
"'It'd be nice if we got a white Christmas because we haven't had one in many years."
In a departure from past years, William and Kate will not spend Christmas Day with the Queen and the Royal Family at Sandringham in Norfolk. Instead they will host Christmas three miles way at Anmer Hall where they will be joined by Kate's family, the Middletons, The Mail on Sunday has learned.
Ms Kichou, who is now in her final year studying for a journalism degree at City University in London, said: "He is obviously a prince who keeps his promise. He said he would give me an interview and he did." She met William at Centrepoint after her mother had died when she was 18, and she found herself homeless in London.
The Prince is patron of the charity - a position he took over from his late mother the Princess of Wales.
Diana was passionate about the cause and took both William and Harry on late-night missions to meet homeless people on the streets of London when they were young boys. The experience stayed with them both, and William says ending youth homelessness is a very personal issue for him.
"I think it goes back to when my mother first took the [patron's] role when I was a small boy. I was very struck by the people I met and what they were struggling with - sleeping rough, sofa surfing, not having basic comforts a lot of us take for granted.
"That really struck me at a young age, bearing in mind the gulf for me, growing up in a palace and seeing the other end of the spectrum. That was powerful to see at a young age.
"In today's Western world, with all the advancements and privileges we have, the fact some people don't have a bed or a roof over their head is quite ridiculous."
- Daily Mail
