Intensely private Sam Worthington shares a VERY rare insight into his family life with Lara Bingle - and raves about his wife's youthful appearance visage: 'She gets better with age'

He is very guarded when it comes to revealing details about his personal life. 

But Sam Worthington gave a very rare insight into his family life with wife Lara Bingle and their three children during an interview with The Kyle and Jackie O show on Friday.  

The Avatar star extended some fatherly advice to new dad Kyle Sandilands after he welcomed his first child Otto five months ago.

The Transfusion actor, 46, shares three young sons, Rocket, six, Racer, four, and River, one, with wife and model Lara Worthington, 35.

He admitted there's no right or wrong way to parenting after Kyle admitted he 'should have read a book or something' following the birth of son Otto.

'The books don't tell you anything... It's a hands on experience and you learn as you go. That's what me and Lara are doing,' Sam said.

The actor mentioning his wife prompted Kyle to ask how Lara is, and make an interesting observation about the famous Aussie couple.

'Neither of you have aged. Is there some secret Hollywood serum you use?' Kyle asked.

'I think I'm ageing,' Sam replied.

Sam Worthington gave a very rare insight into his family life with wife Lara Bingle and their three children during an interview with The Kyle and Jackie O show on Friday

Sam Worthington gave a very rare insight into his family life with wife Lara Bingle and their three children during an interview with The Kyle and Jackie O show on Friday 

The Avatar star extended some fatherly advice to new dad Kyle Sandilands after he welcomed his first child Otto five months ago

The Avatar star extended some fatherly advice to new dad Kyle Sandilands after he welcomed his first child Otto five months ago 

'Lara's like Benjamin Button, she's ageing backwards. She's getting better looking.'

Sam and Lara have three sons, but kept the pregnancies and even the children's names private for some time.

He previously referenced the same parenting advice in an interview with Stellar magazine in November, admitting that he doesn't always get it right, but tries his best.

'I've tried to handle [fame] carefully. It is hard; there's no book to tell you how to do it. There's no set of rules' he told the magazine.

He admitted that there's no right or wrong way to parenting, after Kyle admitted he 'should have read a book or something' following the birth of son Otto

He admitted that there's no right or wrong way to parenting, after Kyle admitted he 'should have read a book or something' following the birth of son Otto 

'I have made a few mistakes. And that's okay. You grow from that'. 

Sam also stressed that it's important to him that his sons know a normal life full of sports and cartoons like any other kid, far from the trappings of fame.

'Now I've got kids, it's more a case of protecting my kids from [attention]' he said at the time.

'At the moment, my kids don't care what their dad does. They don't look at my job in any spectacular way.

'They just want me to take them to soccer practice and hang out and watch Paw Patrol. You're doing your best to have this balance, and that's all you can do.'

'Lara's like Benjamin Button, she's ageing backwards. She's getting better looking,' he said of his stunning wife

'Lara's like Benjamin Button, she's ageing backwards. She's getting better looking,' he said of his stunning wife  

Lara also recently told The Daily Telegraph that the pair, who met in 2013, are enjoying growing old together.

'As a family unit, we're all very close. We've only got each other. Sam and I are a good team. We're both Australians and we have the same values. We come at our children as a team and I think that's really important,' she said.

Lara went on to say that she and her family are 'all very close' and that she isn't too strict a parent.

'They always make me feel so good, especially Sam. I don't want that to ever go; I hope it doesn't,' she said.

'But being able to be a mum and [to] work definitely stems from your partner. Sam and I are on the same page, so I feel like he's 'got me' when I'm working and vice versa.' 

The Stan Originals film, Transfusion, is available now on Stan.  

The Transfusion actor, 46, shares three young sons, Rocket, six, Racer, four, and River, one, with wife and model Lara Worthington, 35

The Transfusion actor, 46, shares three young sons, Rocket, six, Racer, four, and River, one, with wife and model Lara Worthington, 35