GISELE Bundchen has sent touching birthday wishes to Tom Brady's eldest son, Jack, who turned 16 on Tuesday.

The Brazilian supermodel and ex-wife of the NFL icon also shared a few heartwarming snaps of herself and the birthday boy in an Instagram post.

In one of the photos, Bundchen, 43, could be seen holding Jack when he was still a boy.

Another showed Brady's son towering over Bundchen as they stood with their backs facing each other years later.

And a third featured all three of the retired quarterback's children – including Benjamin and Vivian, which he shares with Gisele – embracing one another in a circle.

In the caption, Bundchen left a brief happy birthday note for Jack.

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"I can't believe that you are turning 16!" she wrote.

"I remember when you were just a little peanut and now you are towering over me.

"I am so lucky to have you in my life and I will always be here for you no matter what! Love you so much!"

Brady, 46, celebrated Jack's Sweet 16 with his own birthday post, which featured pictures of them together and the trio of Brady siblings as well.

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"16 years of joy with the (sweetest, kindest, most loving etc etc) son, brother, friend, and teammate any parent could ever hope for," he wrote.

"You have changed our lives since the day you were born and everyday since has been such a blessing for everyone who knows you and is lucky to have you in their life.

"Now it’s time for the next step… the learners permit... hahahaha... I’m gonna make sure I’m off the road."

Brady co-parents Jack with ex-girlfriend Bridget Moynahan, whom she dated between 2004-2006.

Right after their split, the NFL icon became involved with Bundchen and the two tied the knot in 2009.

But the couple ended their marriage in October 2022.

The seven-time Super Bowl champion is now believed to be dating model Irina Shayk.