Cody Simpson has revealed he has undergone a huge change since meeting his Olympian girlfriend Emma McKeon.

The swimming star, 27, told Richard Wilkins on his The Apple and the Tree podcast he has been 'happier than ever' since he began dating Emma in 2022.

'She's one of the greatest. I learn from her example, to have that mutual understanding at home and in training is special,' he said.

'We met during swimming so it is nice to be able to do it together.' 

Cody's sister Alli, 26, added that McKeon's bubbly personality had seen her quickly be accepted by the wider Simpson family.

Cody Simpson has revealed he has undergone a huge change since meeting his Olympian girlfriend Emma McKeon

Cody Simpson has revealed he has undergone a huge change since meeting his Olympian girlfriend Emma McKeon 

'Emma's just gorgeous and Cody has never seemed happier. That's all we want, she's lovely and he's smiling again!' she said.

Cody and Emma went 'Instagram official' with their relationship in July 2022, three months after they began dating in secret. 

Last year, the couple celebrated by buying their first home together.

The pair splashed out $1.826million on a family-sized love nest on the Gold Coast, proving their headline-making romance that flourished during training for the 2022 Commonwealth Games has become rather serious. 

In November, Cody's family hinted that wedding bells could be on the cards for the pop star and his golden girl.

It seems like it's only a matter of time before the pair take the plunge into marriage, if proud mum Angie and his sister Alli have anything to do with it. 

The swimming star, 27, told Richard Wilkins on his The Apple and the Tree podcast he has been 'happier than ever' since he began dating Emma in 2022

The swimming star, 27, told Richard Wilkins on his The Apple and the Tree podcast he has been 'happier than ever' since he began dating Emma in 2022 

Speaking to Daily Mail Australia, Alli and Angie said they hope for a future engagement and that they adore the Olympic swimmer. 

'We love Emma. The three of us went to a movie the other day and when Cody was working, we were like, we're stealing Emma,' Alli said.

'She just shines and she makes Cody really happy. It's the most at peace I've seen Cody.'