Duff, 36, shared a video of her and her son in the car, headed to graduation, on Thursday, June 6. Luca, 12, is wearing a ...

Hilary Duff’s family of five is so yesterday ... now we know why she made us wait so long…She was perfecting those Cheeks!” the “Come Clean” singer captioned the carousel.

And Hilary isn't the only Duff family member getting accustomed to taking care of the little one. The "Come Clean" singer also shared a second snap of Luca holding his little sister in his arms.

Duff is already mom to son Luca and daughters ... and Mom packs the bag the right way. It's crazy.” The “Come Clean” singer" also said that she is “so in love with all my kids ...

Hilary Duff is celebrating her first ... and Mom packs the bag the right way. It's crazy.” The “Come Clean” singer also said that she is “so in love with all my kids” — and the ...

Related: Hilary Duff's 4 Kids: All About Luca ... captioned an Instagram carousel post on Tuesday, April 16. The “Come Clean” singer has long been an open book when it comes to motherhood.

Related: Hilary Duff Snuggles with Daughter Townes as She Celebrates ‘a Month with This Beautiful Plum' The Lizzie McGuire ...

Lizzie McGuire cast: Where are they now? How I Met Your Father's Neil Patrick Harris and Hilary Duff talk Barney's impact on Sophie's future Neil Patrick Harris, Hilary Duff talk Barney's return ...

And Hilary isn't the only Duff family member getting accustomed to taking care of the little one. The "Come Clean" singer also shared a second snap of Luca holding his little sister in his arms.

Hilary Duff Just Wore the "Perfect" Summer Sandal From This Celebrity-Favorite Shoe Brand Hilary Duff Just Wore the Chic Staple I’d Retire All My Pants For Hilary Duff Wore the Popular 2023 ...