"The real twins in our life!" she teased in the caption, along with a snap of her tiny newborn nephew and niece.
In one of the photos, Cam is cuddling one of the adorable bubs – proving to Jules he is in fact a natural with the little bundles of joy.
Looks like the pair are ready for babies of their own!
Jules has been candid about wanting twins of her own one day soon, speaking to WHO last month: "Yeah – I’m hoping I have twins to get it done in one day," she said.
Congratulations Auntie Jules and Uncle Cam!
WATCH: Jules talks starting a family with Cam