Keith Urban and Nicole Kidman
Keith Urban and Nicole Kidman at Oscars 2017 Reuters

Keith Urban is allegedly unhappy about Nicole Kidman's sex scenes on the new HBO series. The 49-year-old actress has racy scenes with Alexander Skarsgard, who plays her husband on the show, Big Little Lies.

A alleged source told to the National Enquirer: "Keith must be going nuts with jealousy watching his wife expose her naked body to another actor, and the world!"

"He's in showbiz, too, so he knows there's things you have to do sometimes, but it can't be easy for him," the insider added.

Urban and Kidman married in 2006 and have two daughters, Sunday Rose and Faith Margaret. In an interview with the Australian magazine Women's Weekly, the Lion star revealed that she would give up acting for her family life with Urban. She said: "If it were the choice between my family and Keith, and my career, I wouldn't even bat an eyelid. The most important things to me are the love of our relationship and my children."

Previously, during an appearance on Channel Nine's The Today Show, Urban revealed he is upset with the break-up rumours. He said: "People make up the most insane crap, and we kind of just roll with it."

"It does [annoy me], I want to live our life together, and the fact we live somewhere where we're not being photographed all the time - it makes it possible for people to make up that stuff because you're not always there to defend it," he added.

"But then you get angry, 'Like why do I have to defend this?' The people who come and see us they don't read that stuff. It is gibberish," the multi-Grammy Award winner said.