Kate Hudson's youngest son is getting so big!

Goldie Hawn took to Instagram on Wednesday, May 18 to post a cuter than cute photo of her grandson Bing, 4, posing with their family dog.

"Every dog should have a child to love… Every child should have a dog to love… Every dog should have another dog to love. I have loved a few dogs myself! #BingoLove," the 70-year-old star captioned the sweet snapshot.

RELATED: Kate Hudson Talks Her "Super Close" Relationship With Mom Goldie Hawn — See What She Surprisingly Revealed!

Goldie's daughter, Kate, 37, welcomed Bing with her ex-fiancé, Matt Bellamy, in July 2011. The How to Lose a Guy in 10 Days actress is also a mom to a 12-year-old son, Ryder Robinson, with ex-husband Chris Robinson.

Click through the gallery below to see more of Hollywood’s cutest kids!