Teenage heartthrob Brooklyn Beckham just had some fun in the sun with his little brother as they get some water athletics in.

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On Tuesday, Brooklyn, 16, posted a photo on his Instagram page as he dons a wetsuit with a sleeveless white shirt and holds a giant surfboard. His 10-year-old brother, Cruz, also holds a surfboard as the two prepare to go on a surfing adventure.

Brooklyn captioned the photo with a clever remark about their voyage.

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"Cruising with cruz," he wrote.

Brooklyn and Cruz are two kids belonging to celebrity couple David and Victoria Beckham. They have two other children, Romeo, 12, and Harper, 3.

According to David, his teenage son is at the age where he feels embarrassed to be seen in front of his parents; apparently, the dad has to drop him off at school in a different area to avoid any awkward moments.

"I wasn't happy about it because I'd got up at seven in the morning to take him to school," David said on his appearance with Good Morning America posted on Hello Magazine. "So I dropped him round the corner, and as he was walking into school I opened the window and shouted, 'I love you!' to him. It didn't go down too well, but it made him smile a couple of days later."

David and Victoria have been married for 15 years.