Robert Irwin has become quite the heartthrob.

And even an innocent post from his mother, Terri Irwin, sparked thirsty comments from his hordes of female fans this week.

The proud mum shared a photo of the 21-year-old on Monday, praising Robert for his recent successes on Dancing with the Stars US.

‘Perfect for working out, dance rehearsals, or looking too cool!’ the 61-year-old wrote in her caption, while endorsing the Australia Zoo branded activewear he was wearing in the image.

Robert’s fans quickly swamped the comments with compliments for the Wildlife Warrior.

‘You feel like an upsettingly hot distant cousin. Your dad helped raise millions of us,’ wrote one person.

Robert Irwin (pictured) has become quite the heartthrob. And even an innocent post from his mother, Terri Irwin, sparked thirsty comments from his hordes of female fans this week

‘He is so handsome. You must be so proud,’ said another while one more commented, ‘Robert is looking so good in that activewear!’

‘I’ll buy it if he’s worn it haha,’ joked someone else, and another fan added, ‘Looking more and more like Chris Hemsworth.’

‘Where do I submit my application?’ yet another teased, with someone else saying, ‘I want to explore his zoo’.

Robert is currently at the centre of rumours that he could be heading for The Bachelor.

The single star whipped up a frenzy among fans who are keen to see him looking for love on TV.

Robert was coy when approached by E! News to clear up the chatter.

While he denied that he was signed up for the US version of the dating series, Robert didn’t take the possibility off the table.

‘Stranger things have happened… who knows,’ he said in an Instagram video posted by the network, adding, ‘We’ll see.’

The proud mum shared a photo of the 21-year-old on Monday, praising Robert for his recent successes on Dancing with the Stars US. Pictured with Terri

It comes after Robert’s staggering salary on Dancing With The Stars US was revealed. Pictured on the show

Robert also tellingly joked, ‘You know what? I want to do it even more now!’

It comes after Robert’s staggering salary on Dancing With The Stars US was revealed.

As reported by Variety , each celebrity competing this season has pocketed around US$125,000 ($A188,000) for the rehearsal period and the first two weeks on the show.

Then, if they stay longer, celebrities receive additional weekly bonuses.

In 2019, Variety reported that the maximum amount a celebrity could earn on the show was $US295,000 (A$447,000), while Good Housekeeping claimed earlier this year that the maximum earning could reach US$360,000 (A$558,000).

Robert’s chances of remaining in the competition appear high – his sultry tango with dance partner Witney Carson wowed the judges this week.

The pair are currently tipped to win the show via Sportsbet.