Her blossoming relationship has had fans hoping for wedding bells.
But fresh claims suggest Bindi Irwin's three-year romance with boyfriend Chandler Powel isn't as picture perfect as it seems.
According to Woman's Day magazine, the wildlife warrior is caught up in a "shock love triangle' between her American beau and long-time friend, Luke Reavley.
"Chandler is really on edge right now about his relationship with Bindi,” a friend of his reportedly told the publication. "He's worried Bindi might be getting cold feet.”
The fresh claims suggest that "jealous' Chandler believes Bindi, 18, might be falling for her best friend, who she has known since he started working at Australia Zoo in 2007.
The source added: "He got so annoyed a few weeks ago when he saw Luke giving Bindi a long hug - it was too much as far as he's concerned.”
The late Steve Irwin's daughter has been dating wakeboarder Chandler since 2014, but is open about her strong bond with Luke, 26.
Recently, she dedicated a post on Instagram to Australia Zoo employee, Luke saying: "I can't believe that I have known you for most of my life! Can't wait to celebrate with you when we are back at the Zoo!”
The explosive claims come just weeks after Bindi returned from a holiday to the US with Chandler, 20, where it was rumoured they'd tied the knot in Vegas.
It was also suggested there is tension between the two men because Bindi is spending more time with her bestie.
"She told him he was being crazy, but he's not sure he beleives her," the source said.