The X Factor supremo hand-picked the Australian to sit on the judging panel earlier in the year.
Now he has been snapped holding hands with the 36-year-old as they left BBC TV Centre after Children In Need.
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Tactile: Simon reaches over to hold Dannii's hand
After Dannii took the hot seat on the X Factor panel she told YOU magazine that should couldn't wait to get up close to the show's Mr Nasty.
"I can't wait to be part of The X Factor team and getting up close and personal on a daily basis with Simon."
And she admitted: "Simon's very fanciable!"
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Hands up: Dannii knows how to silence Mr Nasty
The pair met at an awards event - and Simon uttered the irresistible line: "I'm going to make you an international TV star."
Dannii is famously single - and has been for a couple of years.
But who knows what Simon's long-term girlfriend Terri Seymour is going to say?
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