Mail Online have contacted the couple's reps for comment.
Michaela and Harrison have become the third couple to pair off after the most recent season of The Apprentice.
The Welsh crooner will stay firmly put in his coaching chair on Sunday night's episode, when it'll be his team's turn to take to the stage and battle it out for a place in the final 12.
Into The Ark, Dannii Barnes, Victoria Kerley, Nadine Mc Ghee, Capital B and Craig Ward will compete, and Jennifer Hudson will perform live instead.
From their picture-perfect red carpet moments at the Cannes Film Festival to their cuddly appearances at award shows, this hot Australian duo does not shy away from showing PDA.