And of course, Reavley reciprocated the love when Bindi rang in the big 1-6 just a few weeks later."Happy Birthday to one of the greatest friends!
Thank you so much blessed to have you in my life, you are truly one of my best friends ever x," she replied.
Back in December, Bindi was romantically linked to Bailey "Buzz" Lancaster, her "best friend," with whom she also shared a series of adorable Instagram snaps (sensing a pattern? Following her milestone birthday, which, naturally, was celebrated with a jungle-themed bash at the Australian Zoo, Irwin took to the photo-sharing site to pen a sentimental post dedicated to her late father."Well...it's official!
I am 16 today, and so excited to begin the new chapter of my life. As I turn 16 today, there is a fire in my heart and I embrace the adventures yet to come.
I am forever grateful for the love and support of my beautiful family," she wrote.
Speculation has been running rampant that the Australian teen has coupled up with 24-year-old Luke Reavley, who is the family's personal assisant, and, according to his Facebook page, works at the Australian Zoo.
But is Bindi really dating someone who's eight years her senior? "Luke Reavley is the Irwin Family's Executive Assistant and his relationship with the family started nine years ago when he gained employment at Australia Zoo," a rep for the Irwin family tells E! "He is a dear family friend, but not Bindi's boyfriend.
Bindi doesn't actually have a boyfriend."Rumor debunked!
The two were most recently spotted enjoying a relaxing afternoon at Byron Bay, where they were seen shopping and chowing down on burgers and milkshakes.
The handsome Brit and the budding actress also have plenty of cute pics together posted on their respective Instagram accounts, and clearly, the pair shares a mutual love of animals.