David Koch unwillingly becomes another face of an 'erectile dysfunction' ...

He's one of Australia's most well-known television personalities. 

And now Sunrise host David 'Kochie' Koch has found himself at the centre of an 'erectile dysfunction cream' advertising scam.

Upon hearing the news, the 62-year-old swiftly took to Twitter to defend himself from any association of the fraudulent online ads.

'My nether regions are doing okay for an old codger': Now Sunrise host David Koch finds himself at the centre of an 'erectile dysfunction' advertising scam... following Karl Stefanovic's similar controversy 

'My nether regions are doing okay for an old codger': Now Sunrise host David Koch finds himself at the centre of an 'erectile dysfunction' advertising scam... following Karl Stefanovic's similar controversy 

Warning his legions of fans, David wrote: 'For those who might be tempted... be warned the erectile dysfunction advertisements doing the rounds online using my image are fake.'

The presenter also took the opportunity to poke fun at the situation, adding: 'And, umm, just for the record my nether regions are doing okay for an old codger,' followed by a laughing emoji.

It comes after Karl Stefanovic, 44, faced similar controversy on Monday when his image was also used in a similar 'erectile dysfunction' scam advertisement.

'For those who might be tempted... be warned the erectile dysfunction advertisements doing the rounds online using my image are fake,' David warned his fans on Twitter. Pictured with co-host Samantha Armytage (right)

'For those who might be tempted... be warned the erectile dysfunction advertisements doing the rounds online using my image are fake,' David warned his fans on Twitter. Pictured with co-host Samantha Armytage (right)

The scam masqueraded as an article from an entertainment website that falsely claimed Karl is leaving Channel Nine to focus on developing a 'new erectile dysfunction treatment after he

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