Robert Irwin, 19, caused a stir with female fans this week when he posted photos of himself online.

The wildlife warrior, who is currently dating Heath Ledger’s niece Rory Bucky, showed off his muscular physique as he walked the beach in a wetsuit with a surfboard tucked under his arm.

Many of Robert’s fans said they wanted to “marry” the teen.

‘I’ll always have a crush on this man,’ one enthusiastic fan wrote.

‘More proof I need to marry an Australian,’ another added.

‘One thing is for sure, his awesome dad is smiling big as the sky from heaven, bursting with pride over his legacy, his incredible family, wife and kids… He sure was a lucky man. The family is just incredibly amazing. Good people.’

Despite Robert’s strong female following, the star’s relationship with Rory continued to grow.

The couple made their red carpet debut last week at the premiere of “Mission: Impossible” in Sydney.