He’s the fresh-faced wildlife warrior who stole America’s heart by lifting the Dancing With The Stars mirrorball just weeks ago – but Robert Irwin has proven he’s no longer the little boy feeding crocs alongside his legendary dad Steve, as his latest Instagram photos have sent fans into a full-blown frenzy over his jaw-dropping physique.

The 22-year-old Australian heart-throb, looking every inch the Hemsworth brother in the making, posted a series of moody black-and-white shots on Monday, captioned simply ‘Back to work’ – and the internet promptly lost its collective mind over his rippling arms and triceps that could only be described as ‘popping’.

Clad in an oversized sleeveless shirt that did absolutely nothing to hide his toned guns, paired with rugged denim jeans, lace-up boots and his trusty camera slung around his neck, Robert appeared perched on the back of a truck – ready for another day of conservation work at Australia Zoo.

But it was those biceps – honed from years of wrangling wildlife, intense DWTS training and, let’s be honest, some serious gym sessions – that had fans hyperventilating. Comments flooded in within minutes: ‘Those triceps are popping!’, ‘You got a license for those guns?’, ‘The arms are arming!’ and ‘Employee of the year at the hot boy factory.’

One smitten follower declared: ‘Well, Crikey Who Is This Handsome Piece Of Work I Think I Fell In Love.’ Another quipped: ‘With that physique? He looks more like a Hemsworth than an Irwin lol.’ And a third begged: ‘Robert was made to be a model, like hello, those arms.’

Even former DWTS pros joined the chaos, with Emma Slater commenting: ‘As a mirrorball champion!’ – a cheeky nod to Robert’s triumphant win on season 34 alongside partner Witney Carson.

The post comes hot on the heels of Robert’s emotional return to Australia after his US dancing triumph, where he’s been soaking up family time with mum Terri, sister Bindi and her adorable kids at the family-run zoo. But clearly, the break did nothing to diminish his glow-up – if anything, those arms look even more impressive post-victory.

This isn’t the first time Robert has broken the internet with his looks. Earlier this year, his steamy Bonds underwear campaign – featuring him stripped down to boxers while cuddling snakes, koalas and spiders – caused absolute pandemonium, with fans joking he was ‘breaking the internet again’ and declaring him ‘thirst trap king’.

And who could forget his shirtless salsa on DWTS TikTok Night, where he ripped off his top mid-routine to reveal a chiseled torso that had judges gasping and the audience screaming? Carrie Ann Inaba famously quipped: ‘Robert Irwin is all grown up, wow, you’re making me feel like a grandmother. Put your shirt back on!’ while Bruno Tonioli praised the ‘wonderful performance’.

Robert’s transformation from adorable khaki-clad kid to bona fide hunk has been years in the making. Growing up in the spotlight as Steve Irwin’s son – the Crocodile Hunter tragically killed by a stingray in 2006 when Robert was just two – he’s carried the family legacy with grace, becoming a passionate conservationist, photographer and TV star in his own right.

But now, at 22, he’s embracing his status as a global heart-throb – and fans are here for it. ‘As a zookeeper or a model? Look at those arms. I think they got bigger. He knows what he is doing and I’m not mad,’ one admirer wrote. ‘He is so handsome and cute.’

Of course, not everyone’s surprised. Insiders say Robert’s always been dedicated to fitness, crediting his active lifestyle wrestling crocs and hiking through the bush for his enviable bod. And after months of gruelling DWTS rehearsals – lifts, flips and non-stop cardio – it’s no wonder he’s buffed up.

Back home, Robert’s wasted no time getting stuck into zoo life, sharing snaps of family reunions and hinting at new photography projects. But with his social media blowing up once again, the question on everyone’s lips is: How much hotter can he get?

Mum Terri, 61, has always been fiercely protective of her kids, but she’s beaming with pride over Robert’s achievements – from gala appearances to that glittering mirrorball trophy now pride of place at Australia Zoo.

Sister Bindi, 27, who’s battled endometriosis and become a mum herself, has been his biggest cheerleader throughout the DWTS journey. And little niece Grace Warrior? She’s already got Uncle Robert wrapped around her finger.

Yet amid the thirst comments, fans are reminding everyone what makes Robert truly special: his unwavering dedication to wildlife. ‘He’s not just hot – he’s saving the planet one croc at a time,’ one wrote. Another added: ‘Perfect body, unmatched kindness and positivity.’

As Christmas approaches Down Under, Robert’s treating fans to the ultimate gift: more swoon-worthy content. But with modelling offers surely pouring in alongside zoo duties, what’s next for the man who can tame snakes and break hearts with equal ease?

One thing’s for sure: The boy who grew up saying ‘Crikey!’ has officially grown into a man who’s got the whole world saying ‘Wow!’

Are YOU obsessed with Robert’s glow-up? Think he should do more modelling? Email us at [email protected]

Why fans can’t stop thirsting over Robert’s arms

• The sleeveless flex: Oversized tank perfectly showcasing those DWTS-honed triceps.
• Black-and-white magic: Moody filter making him look like a Hollywood leading man.
• Post-win glow: Fresh off mirrorball victory – confidence on overdrive.
• Camera in hand: Reminding us he’s a talented photographer too – brains and brawn!

Thirstiest fan comments going viral

• “Those triceps are popping 😍”
• “You got a license for those guns? 🔥”
• “The arms are arming… I’m deceased”
• “Employee of the year at the hot boy factory 😂”
• “He looks more like a Hemsworth than an Irwin!”
• “Robert was made to be a model – hello those arms!”
• “Well, Crikey… I think I fell in love”
• “As a zookeeper or a model? He knows what he’s doing!”

Robert’s hottest moments of 2025

• Bonds underwear shoot: Stripped down with snakes – internet exploded.
• DWTS shirtless salsa: Ripped off top, judges blushed.
• Behind-the-scenes flexes: Workout vids proving the gains are real.
• Ocean swims in undies: Casual beach vibes turning heads.
• Now this B&W series: Arms front and centre – meltdown 2.0!

From kid to king: Robert’s glow-up timeline

• Child star: Feeding crocs with dad Steve.
• Teen years: Taking over zoo duties, photography passion emerges.
• 2024-2025: Bonds campaign, DWTS win, global heart-throb status.
• Future?: More modelling? Hollywood? Conservation icon?

The wildlife warrior continues to defy gravity – and expectations. Steve would be so proud. 🐊❤️