President Barack Obama and his wife Michelle shared a kiss for the big-screen "Kiss Cam" at a basketball game in Washington DC on Monday.

They were watching the USA National Team play Brazil, with their daughter Malia and Vice President Joe Biden.

The Kiss Cam is a long-standing tradition at American sporting events and it was Malia who noticed that her parents were being filmed.

She then signalled to her father, who put his arm around his wife and kissed her, first on the lips and then on the forehead.

The First Lady looked embarrassed, but the crowd cheered loudly, clearly thrilled that the first couple had entered into the spirit of the occasion.

Americans will go to the polls in November, to decide whether or not President Obama should stay in the White House.