Bindi Irwin has a lot of love for her family.
On Tuesday, the 18-year-old conservationist shared a flashback photo of her mother, Terri, and her father, Steve, cuddling up to one another and a koala. "Soulmates -- in this life and every other," Bindi -- who's been dating Chandler Powell for several years -- captioned the sweet photo. "True love lasts always."
WATCH: Bindi Irwin on Mom Terri -- She's the Strongest Human Being I've Ever Known
Bindi's parents had been married for 14 years when Steve died after being pierced in the chest by a stingray barb in September 2006. While it's been over 10 years since the Crocodile Hunter star's death, Terri told ET in an October 2015 interview that she has no interest in dating because she's already had her "happily ever after."
"I still feel immense love and loyalty to Steve," she explained. "And I've got great kids, I've got a very full life, and while I'm lonely for Steve, I'm not a lonely person."
WATCH: Terri Irwin Says She Hasn't Been on a 'Single Date' Since Husband Steve's Death in 2006
"I think for other people who have lost someone and have loved again, it's a beautiful thing," Terri, 52, added. "But it's just not really on my horizon."