Proud mum Jools Oliver is smitten with her new baby boy, sharing sweet photos with fans as his older siblings continue to get to know him. And though the 41-year-old is an expert, having already cared for baby four times before, she seems grateful to have an army of little helpers this time around.

The children's clothing designer took to Instagram on Monday to share another photo of family life, showing daughter Petal Blossom Rainbow, 6, holding her dainty nine-day-old brother. Jools simply captioned the snap with two love heart emojis, and was quickly inundated with love from her followers.

TAP TO VIEW GALLERY Petal Oliver has been getting to know her baby brother

One fan wrote: Thank you for sharing your gorgeous new baby with us all, too precious to hide away." Jamie, also 41, and Jools have yet to announce their son's name, and their followers are clearly desperate to know!

Another questioned: "So precious! Does he have a name yet? @jamieoliver @joolsoliver."

Proud big sister Poppy is "smitten" with the baby boy

The couple are also parents to Poppy Honey Rose, 14, Daisy Boo Pamela, 12, and five-year-old son Buddy Bear Maurice, and celebrity chef Jamie revealed he's spending as much time as possible with his family before he has to return to work.

Jamie's mother Sally, like any other proud Nan, has also been posting pictures of her newest grandchild, showing just how hands on the other children are.

"Our dear little Poppy taking care of her brand new brother," Sally wrote alongside a photo of Jamie and Jools' eldest child with the adorable baby boy. Bless her, she is so smitten!"