Britain's biggest family welcomed their 22nd child into the world earlier this year - and she hasn't stopped smiling.
Super-mum Sue Radford, from Morecambe in Lancashire, says five-week-old Heidie has been melting the family's hearts with her grin.
Sue, 45, claims her baby hasn't stopped smiling since she was four weeks old, earlier than any of her 21 siblings.
In an Instagram post, the besotted mum posted an adorable picture of Heidie with her one-year-old sister Bonnie, smiling as her big sister kisses her hand.
In a caption, she wrote: "Oh my heart look at little Bon Bon kissing Heidie’s hand."
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A fellow Instragrammer called the picture "beautiful", saying: "Heidie is such a smiley baby.
"Did Bonnie smile this young? Adorable beautiful babies."
Sue then revealed: "Thank you and no she didn’t.
"Heidie has been smiling since just before she was 4 weeks which is the earliest any of ours have smiled."
Sue, who fell pregnant with her first child at age 13, has been updating her family's fans about her pregnancy via their YouTube channel.
She and husband Noel, 48, make ends meet thanks to his bakery business.
But in a recent Q&A on YouTube, the mum announced she was "100% done" with having children."
Speaking in the clip, she said: "Every other question asked is, will you be having another baby and the answer to that is no!
"Definitely no more - we are 100% done. Done, done, done."
Heidei's oldest sibling is Chris, 30, followed by Sophie, 25, Chloe, 23, Jack, 22, Daniel, 20, Luke, 18, Millie, 17, Katie, 16, James, 15, Ellie, 14, Aimee, 13, Josh, 12, Max, 11, Tillie, nine, Oscar, seven, Casper, six, Hallie, three, Phoebe, two, Archie 18 months, and Bonnie, one.
Sue and Noel also have three grandchildren, who are Sophie's children, Daisy, six, Ayprill, four, and Leo, two.
