Michelle took to Instagram on Sunday to wish her partner, fellow The Biggest Loser trainer Steve 'Commando' Willis a happy 40th birthday.
The black and white picture of the new parents embracing, is simply captioned, 'Happy Birthday my ❤️ xxx.'
The intimate shot of the popular couple has quickly reached almost 6000 likes.
Michelle, 45, and Steve welcomed their first child, son Axel, in December.
Just last month, Michelle revealed she learnt the tricks of parenthood from her partner, who is also the father of three other children from his previous relationship.