Tennis clearly isn't really on mum-to-be Nicole Kidman's mind as she does her own bit of courting with hubby Keith Urban.

The couple, both 40 and expecting their first baby, were supposed to be cheering on Lleyton Hewitt in Melbourne at the Australian Open yesterday.

But they only had eyes for each other as their friend was knocked out.

Nicole, who adopted two children Isabella, now 15, and Connor Anthony, 13, with her ex-husband Tom Cruise, had two miscarriages during their 10-year relationship.

And an onlooker said: "Keith has restored her radiance and she's obviously in love.

"They look so happy starting a family together."