Their arrival on July 12 garnered international attention, and with every step of their young lives - their weights, their names, and, more recently, the choice of godparents - Knox and Vivienne Jolie-Pitt have made headlines around the world.
As Brad and Ange's fifth and sixth kids - their second and third biological children - the stunning new arrivals find themselves already unbelievably famous and about to embark on a crazy life that's bound to be full of privilege... and also major upheaval.
Ahlan! takes a look at the furore the latest Jolie-Pitt arrivals have already caused, and what awaits them in the chaos of their multi-ethnic, nomadic family...
Stalked by paparazzi!
Clashes between their bodyguards and paparazzi, who the celeb couple say were trespassing on their land in France, led the police to be called to the chateau where Brad and Ange are holed up with their new arrivals and
four other kids. And sources say that Brad has promised a "war" on the photographers who attempt to jeopardise the rumoured Dhs60 million deal they have to sell the first photographs of the twins.
"I'm fed up with my private property being violated," sources say Brad spat at photographers. "If you want war, you will get it."
Getting lost in the family
With Brad and Ange desperate to expand their brood as quickly as possible, Knox Leon and Vivienne Marcheline run the risk of getting lost amid the six Jolie-Pitt kids.
As Angelina has signed up for two new movies this year and Brad with no fewer than four movies in the pipeline, the couple - despite their public declarations that they give each child special "me time" - are certain to be unable to spend much time with the kids.
Never settling down
Last week, it was shockingly revealed that Brad and Ange have moved no less than 18 times in the past year.
And, as sources whisper that the reason is so that the children will be more attached to each other and super-needy Angelina than to any outside friendships, Brad and Ange are already making plans for once they leave their rented chateau in France, with insiders saying that Angelina is keen to adopt from China next.
Just part of Brad And Angelina's big plan
"If we're going to have 10 kids, we'd like to raise them while we're young," Angelina told Elle magazine, last year. And with Knox and Vivienne clocking in as numbers five and six, it looks like they could see another four siblings born or adopted in quick succession, before mum and dad's big family cravings are finally satisfied.
"I have three kids now and next year I'll have six. Nine," said Brad, last year. "We're looking for a soccer team. I want to compete in the next World Cup."
Family secret revealed!
Ange opted for IVF!
It's usually the last step for couples unable to have children naturally, but sources close to Brad and Ange are whispering that the actress went through IVF in order to conceive the twins.
And the reason for this unprecedented step is, they say, because the actress didn't want to "deal with the stress" that comes with trying to get pregnant.
"They conceived through In Vitro Fertilisation," a source revealed. "They both desperately wanted more babies soon."
And this shocking revelation has explained how 33-year-old Ange managed to conceive twins - which aren't hereditary in either
her or Brad's families.
"[She had IVF so] she wouldn't have to deal with the stress of trying to get pregnant," the source told Us magazine. "She could just knock it out." Adding, "They were too impatient [to wait]."