Olympian Emma McKeon reveals secret to 'easy' relationship with teammate Cody Simpson

Aussie Olympic swimmer Emma McKeon and singer-swimmer boyfriend Cody Simpson are still going strong.

"It's pretty easy," McKeon, 28, said at the Courier Mail's Future Brisbane lunch of her relationship with Simpson, 28.

"I mean, we've got the same schedule, we're tired at the same times, hungry at the same times, all that kind of stuff, so it makes living very easy."

Watch the video above.

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McKeon, also known as the most decorated Australian Olympic athlete in history, also opened up about how she and Simpson "can support each other so well in what we do."

"[We] understand what's going on at different points, so, yeah, it's been a lot of fun as well," she said.

McKeon's comments come months after Simpson's mother, Angie Simpson, gushed over her son and his belle, telling Woman's Day, "I adore them as a couple and they're lovely friends to boot."

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Simpson soared to stardom as a singer, and has since pivoted to a swimming career, securing a spot on the Australian national team for the Commonwealth Games in Birmingham earlier this year alongside his Olympic gold medallist girlfriend.

"Being on the Australian team together makes my heart sing – she's there for Cody for all the right reasons," Angie continued.

"She's a few years older – her maturity and cool head are the sort of qualities Cody adores in a woman."

Angie then said that the couple are "two beautiful souls" who "fit together so well."

"They're like a couple of Cheshire cats – as a mum that makes me so happy," she concluded.

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Simpson confirmed his relationship with McKeon in an Instagram post in July, with photos of the two travelling together ahead of the Commonwealth Games.

"A brief rendezvous in Barcelona with my love [McKeon]," Simpson wrote, and McKeon responded with a love heart emoji.

In May, Cody was filmed next to McKeon as he received a text message telling him he had qualified for the Birmingham Commonwealth Games. The pair shared a sweet embrace as he digested the news.

Simpson has previously dated Miley Cyrus and Gigi Hadid, and McKeon has previously been romantically linked to fellow teammate Kyle Chalmers.