Australia's sports minister will don a Team GB shirt and be made to row at Eton Dorney after losing a bet with her British counterpart.
Hugh Robertson, minister for sport and the Olympics, won the bet with Kate Lundy over whose country would triumph with more Olympic medals.
If Mr Robertson lost he would have had to wear an Australia top and play hockey inside Australia House, the Australian High Commission in London.
But with Britain third in the medal table with 48 medals and 22 golds and Australia very much down under with 25 medals and 4 golds, Miss Lundy has the forfeit.
She told ITV's Daybreak: "If Australia got more gold medals then Hugh was going to put on a hockey t-shirt and dribble the ball around Australia House.
"But if Britain got more gold medals I'm wearing the GB shirt and rowing a length at Eton Dorney. I have cheerfully conceded that I think I will be rowing this time around."
She described her nation's performance at London 2012 as a "shock".
"I think a lot of Australians are looking at the result and saying 'Where are we?'...But can I say all credit to the British athletes who are having a fantastic Olympic Games."
Asked if it was the best ever Games, Mr Robertson said comparison should not be made, but added: "I think London will reset the dial for Games to come."