Daphne Dunne was left a little flushed after Harry gave her a peck on the cheek - and it was not the first time she had been kissed by the Prince.
Crowds endured heavy rain and thunderstorms to meet the Royal who was on a walkabout as part of his promotion for the Invictus Games launching in Australia.
With the landmark Sydney Opera House as a backdrop, Harry shook hands with dozens of well-wishers sheltering under umbrellas - and was even offered a cup of tea by one fan.
But it was Ms Dunne, wearing her husband Albert Chowne's medals - including his posthumously awarded Victoria Cross for his actions during the Second World War - who caught Harry's eye and he greeted her with a kiss.
The Prince had given her a similar welcome when they met in 2015 during his month-long attachment with the Australian Defence Force.
"He kissed me on the other cheek this time. He really is a lovely young and he's warm and genuine and really cares about the injured servicemen and women, he's doing a fantastic job supporting them."
Later, at a nearby passenger terminal, Harry watched demonstrations of adaptive sports, like wheelchair rugby and sitting volleyball, before urging Australians to get behind their Invictus Games athletes when Sydney stages the competition next year.
Harry, who is the driving force behind the Games for injured and sick military personnel and veterans, said:
"I promise you the sport you will see in front of you is some of the best, most competitive, uplifting and inspiring sport you will ever, ever see.
"And I can safely say that sitting there and watching these guys and girls compete against each other, people who have fought together and recovered together, to see them serving their country once more on the sporting field.
"Seeing, literally, lives change through sport is one of the most uplifting and inspiring things that I think you'll ever see."