Tom Higgs & Dr Roger Sutton pose for a portrait at the This Morning studios in central London on Friday 20, December 2013.
Tom Higgs underwent a kidney transplant at Great Ormond Street Hospital, with the organ provided by an altruistic living donor.
He met his donor, Roger Sutton, a 53-year-old GP from Portsmouth, after the pair exchanged letters.
They waived their right to anonymity to highlight the benefits of organ donation.
Tom has suffered from a rare type of kidney disease, atypical haemolytic uraemic syndrome, since the age of five.
It left the schoolboy, from Ruislip in Greater London, needing nightly dialysis.