Graeme Smith's pregnant wife Morgan Deane joked that her waters had broken on seeing her cricketer hubby mark his 100th Test appearance by hitting a century.
Irish singer Deane, took to her Twitter account to express her joy over her husband's achievement.
"I think my waters just broke! Oh my goodness. My husband, you rock star. So proud," the Sun quoted her as writing.
It was a little less explicit than a tweet a few weeks ago, when she posted a picture of a book called 'How to Live with a Huge Penis' and said it might prove useful in her life.
The South African skipper is due to fly home on Monday to attend the birth of his first child.
Smith, 31, admitted after scoring 131 in the first Test at The Oval: "She is a little impulsive. I think I will have to try to calm her down!
"Playing 100 Tests is special but scoring a century is just surreal," he added.