Taking to Instagram, the Australian star shared a cheeky snap alongside her boyfriend and simply captioned it, "Clark Kent....? 😘 #Halloween."
Fans couldn't help but notice how grown up the 19-year-old looked. "OMG when did you get so gorgeous Bindi?" one wrote.
While another commented: "Watched bindi thru the years. You’ve turned out beautiful inside and out."
"Wow! Super smoking'! 🔥🔥🔥" one more wrote.
Chandler was quick to respond with an outpour of emotion, writing: "I. Am. The. Luckiest. Guy. Alive. ❤️ Can't wait to celebrate today🎃."
We're not sure if the candy they'll be eating will be as sweet as they are!