Cody Simpson and Emma McKeon train together in London ahead of the Commonwealth Games

Lovebirds Cody Simpson and Emma McKeon are big believers in the mantra: couples who train together, stay together.

On Wednesday, the pop star, 25, and Olympian, 28, trained together at the Sandwell Aquatics Centre in London ahead of the Commonwealth Games.

Cody showed off his muscular physique and his bulging biceps in yellow Speedos before jumping in the pool.

Cody chatted to his supportive girlfriend Emma, who also showed off her figure in a swimsuit.

It comes after Cody and Emma sat down for their first joint interview for Channel Seven’s Spotlight, which aired on Sunday night.

The pop star and Olympian were quizzed on their high profile but private romance and questioned over whether the relationship was ‘serious’.

Cody showed off his muscular physique and his bulging biceps in yellow Speedos before jumping in the pool

Cody chatted to his girlfriend Emma, who also showed off her figure in a swimsuit

Cody referred to the relationship as having ‘settled-down vibes’ and being ‘peaceful’ in a sit-down interview with Denham Hitchcock.

Emma chimed in: ‘I feel like we’re best friends, which to me is so important. I’m close with my family, that is important to me, as well, so we just have a lot in common.’

‘We’re loving where we’re at at the moment. And we have fun together. We just love each other’s company,’ she went on.

‘We talk every day about how happy we are and how lucky we are. I think we definitely appreciate it,’ Cody added.

It comes after Cody and Emma sat down for their first joint interview for Channel Seven’s Spotlight, which aired on Sunday night

The pop star and the Olympian were quizzed on their high profile but private romance, and questioned over whether the relationship was ‘serious’

‘You know, when you meet someone, you just recognise that there’s something there. I always saw her as this special person to me’.

The singer was then asked what the ‘best thing’ in his life right now was – Emma or swimming – and he struggled to choose.

‘It’s a loaded question. Like, swimming is that we do together, it’s all wrapped up in one,’ he said.

Elsewhere in the interview, Cody admitted that it took him a year to approach Emma after developing a crush on her.

‘I always acknowledged that there was a connection that we had. But we didn’t act on it until what ended up being a year later,’ he said.

Cody referred to the relationship as having ‘settled-down vibes’ and being ‘peaceful’ in a sit-down interview with Denham Hitchcock

Emma chimed in: ‘I feel like we’re best friends, which to me is so important. I’m close with my family, that is important to me, as well, so we just have a lot in common’