The teenage son of David and Victoria Beckham was the doting big brother on 26 July as he left a fitness centre with his three-year-old sibling.
How big is Harper getting?!
Brooklyn appeared to be chatting to his adorable little sister, whose attention was focused on something in the distance.
The smallest member of the Beckham family celebrated her third birthday on 10 July, reportedly at a bash held at the family home in London.
Brooklyn and Harper had been at the SoulCycle centre in Brentwood with David and Victoria, who kept a low profile, covering her face with a baseball cap.
Their other children, Romeo and Cruz, were not pictured.
The photogenic Beckham clan have been spending summer over in California, where David was recently seen catching up with his old Manchester United teammates, who are in the US on a pre-season tour.
Victoria, meanwhile, recently posed for the cover of Vogue, where she spoke about life with David and the kids.
"I looked at it [turning 40] and said to myself, I have four incredible children, an incredible husband, a business that's doing very well. I've worked hard and achieved a lot. I don't think I could have achieved much more. I wouldn't be where I am without David. He gives me the security and encouragement to do what I do. I do the same for him."
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