United Kingdom, June 5 -- Bindi Irwin "can't unsee" her brother Robert's underwear shoot.

The 26-year-old conservationist - who is the daughter of late Crocodile Hunter star Steve Irwin - recently had to endure her brother Robert, 21, stripping down to his boxers for a promotional deal with Bonds as well as appearing shirtless in his Dancing with the Stars announcement and has found it "rough" to see the whole thing go viral.

Speaking on the 'Not Gonna Lie' podcast, she told host Kylie Kelce: "There are some things as his sister that I can't just unsee.

"When he did the Dancing announcement, he was shirtless, and when he did his Bonds commercial, he was just in his underwear, and it is.it is rough."

Despite her embarrassment over her ...