"Never too old for a kiss from mum #embarrassingmummoment X vb" she wrote alongside a photo of herself and Brooklyn.
The 41-year-old was shown puckering up for a big kiss on Brooklyn's cheek, while Brooklyn stared at the camera with a raised eyebrow.
But he did allow the photo to be taken, so we're sure he doesn't mind it too much. Especially as he then re-posted the photo on his own Instagram with the caption: "Luv ya @victoriabeckham." Aww.
The mum to Brooklyn, 16, Romeo, 13, Cruz, 10, and four-year-old Harper then uploaded another photo of Brooklyn, but this time he was cuddling up to their latest family addition - Olive the Puppy.
This isn't the first time Victoria and Brooklyn Beckham have shared photos showing their strong mother-son bond.
In November, the 16-year-old uploaded a photo of him and his mum to Instagram with a simple heart emoji.
The photo, which had 464,000 likes, prompted comments from fans calling them the "cutest mother-son duo ever" and the "perfect two people".