Scarlett, who played House Slytherin's Pansy Parkinson in the final three movies of the wizarding series, confirmed that she and her husband Cooper Hefner (son of the late Hugh) were expecting twins in November last year.
In a post announcing the twins' arrival today (March 29), Scarlett shared a number of snaps of her and Cooper in the Californian hospital where the twins were born – and it's safe to say that Scarlett and Cooper look besotted with their new arrivals.
"My heart grew twice as much this weekend as Cooper and I welcomed our daughters, Marigold Adele Hefner and Blossom Pearl Hefner into the world," the star captioned the post.
"Our home is full of love with our three daughters and we couldn't be happier."
"Scarlett and I are overjoyed to share that we welcomed Marigold Adele Hefner and Blossom Pearl Hefner into the world on Saturday, March 26th," Cooper added in his own post.
"Today, we are settling back in at home. How blessed we are to be gifted with their life. How lucky we are to be given this love."
Scarlett and Cooper are already parents to a young daughter, Betsy Rose Hefner, who was born in 2020.
As you'd expect, the comment section soon filled up with warm wishes from Scarlett's many followers.
"So proud of you Scarlett! Those girls are so lucky to have you," one comment read, while another added: "HUGE CONGRATS, YOU LOVELY HUMANS!!!! what lucky kids."
"Omg!!! Congrats love. So happy for you guys," another follower wrote.
"Congratulations!!! So happy for you all!!! Beautiful healthy family!!!" added another.
Elsewhere on the Potter front, Hermione Granger's Emma Watson previously explained why she finds it difficult to keep in touch with her closest Hogwarts pals, Daniel Radcliffe (Harry) and Rupert Grint (Ron Weasley).
"As a three, we really try and stay off electronics so that doesn't help for a massive amount of back and forth. We aren't on a group chat but we speak individually. Rupert sends me pictures of [his daughter] Wednesday and I die. Dan and I generally try and calm each other's nerves," she said.
Imagine if she planted eyes on Marigold and Blossom!