Well, you're never too old for a cuddle with your dad!
Posted on the superstar footballer's Facebook page, David wrote: "Happy birthday to my big boy xx."
He juxtaposed the photo with a snap from when he walked his eldest onto the pitch for the first time when he was a toddler - wearing his dad's Carling Cup winner's medal.
The very public display of father affection comes a month after the 39-year-old father-of-four revealed that when he drops Brooklyn off at school he shouts out 'I love you' – so the mortified teen now insists he's now dropped off around the corner.
Talking to Susanna Reid on ITV's Good Morning Britain, Becks said: "(Brooklyn's) at the age now where he does not want me to drop him off outside school. He does not want too much affection but, yes, I still kiss him.
"He said 'Can you drop me round the corner?' ...
"As he was walking in to school, I wound down the window and shouted 'I love you' to him. He was not happy but it made him smile a few days later."
David also revealed that his son's 16th birthday celebration would be a low key affair.
He said: "I think he wants to go for a dinner with his friends and he'll have a separate dinner with his family because he's at the age now when he doesn't want me to drop him outside the school and things like that - which I definitely do anyway!"
The former Manchester United and Real Madrid star also admitted his children get into the same scrapes as any other child.
He said: "Without a doubt, my children from time to time do get 'sore throats' in the morning, especially when there is certain things happening at school or their dad is going to play some game.
"They definitely try to get out of school. My son was playing football yesterday and he hurt his neck and the physio came over to me and she said, 'he's fine but his first question was 'do I have to go to school tomorrow?'"
Brooklyn is starting to step from under his famous father and mother Victoria's shadows over the last few months and has gained a huge following on Instagram, with more than 350,000 followers.
But his ambitions go beyond fame and he is working hard to follow in his dad's footsteps as a professional footballer.
Unfortunately, he suffered a setback recently when he was dropped from Arsenal's training academy after failing to earn himself a scholarship.
However, there are now rumours that Manchester United – the club where his dad made his name – are interested in the just-turned-16-year-old.