Estimates suggest that

"He's very resilient and just gets on with it – even though he's been through so much and I wouldn't be able to cope with half of what he has gone through."But we've talked to him about sharing his story, to help him and other people find a match, and he's said yes, he wants to help."

"To look at him right now, you wouldn't know he is ill and needs a transplant," she added.On Sunday Mason's family and friends, led by Emily, held a stem cell donor registration event to encourage more people to sign up as potential stem cell donors.The process is described as "quick and easy, and can be completed with a simple cheek swab".

Blood cancer charity DKMS helped organise the donor registration event at a primary school in Islington.The charity's spokesperson, Deborah Hyde, says: "By registering as a donor, you could give hope not just to Mason, but countless others from all backgrounds, who are relying on the stem cell register for a second chance at life.

"Signing up is a quick and easy process involving some painless mouth swabs: if you are aged 17 to 55 and in general good health, you're eligible to join the register with DKMS.

"And if you were then matched with someone needing a transplant, in nine out of ten cases donating is a simple, outpatient process similar to donating blood platelets."He will appear at Norwich Crown Court on 19 June and was granted conditional bail.

Alana arrives for our interview with a bag for life full of lacey underwear, knee-high boots and a leather whip.She initially seems nervous, but begins to relax when we start talking about her job.

Alana is the name she has given herself - an identity to separate her work self from her everyday life as a mum."At the end of the day, we take all our make-up off, and go back to shopping at Asda, or do the school run," she says.