Casey Batchelor has given birth to her third child.

Casey Batchelor's new baby announcement (c) Instagram

Casey Batchelor's new baby announcement (c) Instagram

The 36-year-old reality star and her fiancé Dane Goodson have welcomed another "princess" into the world, a sister for three-year-old Florence and 15-month-old Sadie and couldn't be happier.

Casey announced the new arrival on Instagram, alongside a photo of her holding the baby's hand, which was placed next to two old similar photos of her elder children's hands when they were newborns.

Above the montage were the words: "And then there were three".

Casey captioned the picture: "We now have three little princesses [heart emojis] (sic)"

And the former 'Celebrity Big Brother' star think her family is "perfect" now.

She told Britain's OK! magazine: "We couldn’t be happier in our baby bubble.

"I still can’t quite believe we now have three daughters, it’s perfect!"

Although she hasn't yet revealed her daughter's name, Casey previously teased her third child would have an "old-fashioned" moniker.

She said in February: “I’m over the moon now the shock has gone and I can’t wait to have my own little girl gang.

“They’ll all be close in age, it’s going to be amazing – we’re thrilled.

“We’ve already picked out a name. It’s going to be old-fashioned to match Florence and Sadie.”

And it may not be long until Casey and Dane add to their brood again as she also admitted she doesn't want a big gap between her kids.

She said: “I like to have everything planned, even though it seems crazy to be talking about a fourth when we haven’t even had our third.

“Dane would like to try for another, as it would be nice for him to have a boy.

“Number four would definitely be the last though and it would be quite soon after this baby comes.

“We’re already in baby mode now and it would be nice to have my life back a little bit in my 40s.”