So there was been great excitement among celebrity baby watchers following an appearance by Knox Leon and Vivienne Marcheline, who celebrated their first birthday in July.
Adding to their jet-setter reputations, the adorable twins were spotted in Amman, Jordan with Brad and Angelina.
Just like their biological sister Shiloh, they have inherited their movie star mum's famous lips and their dad's beautiful blue eyes.
The quartet made a surprise visit to the Lucky Licious ice-cream store where owner Ihab Fakhouri snapped a picture of the family he later posted on Twitter.
"They were walking down the street and saw our shop. Brad stopped and said: 'Do you guys have ice cream?'" Ihab told People.
The group spent around 15 minutes in the shop. And after sampling several flavours, the Inglourious Basterds actor chose a cup of pecan, caramel and vanilla ice cream to share with his little girl.
Angelina decided upon the mango flavour which she went on to split with her young son.
"Knox loved the mango. He was like 'Wow!'," Ihab recalled.
"The kids look so much like Angelina. They look like their mother but they have Brad's eyes. They looked like really happy kids."
While the Hollywood's golden couple found time for treats with their youngest – they are also parents to Maddox, seven, Pax, five, Zahara, four, and three-year-old Shiloh – they were in the Middle East on a serious mission.
Last week they flew in to Damascus for a humanitarian trip as part of 34-year-old Angelina's role as a goodwill ambassador for the United Nations refugee agency.