Brad Pitt and pregnant Angelina Jolie took their adopted sons to a sonogram over the weekend.
The pair - who are reportedly expecting twins - took seven-year-old Maddox and four-year-old Pax to the medical centre to "meet" their unborn siblings on America's Mother's Day.
A source close to the couple said: "Angelina was due for a scan and her and Brad thought it would be cool to do it on Mother's Day and take Maddox and Pax along to see the twins for themselves on the sonogram machine."
Brad and Angelina - who is said to be planning to give birth in France, where they are currently on holiday - decided to leave adopted daughter Zahara, three, and 23-month-old biological daughter Shiloh, at home, but wanted the older children to understand the "pregnancy process."
The source added to TV network E!: "Brad and Angelina are very big on explaining things in a very simple way to their kids and they want the kids to feel included in the process of her pregnancy."
"Having them see the babies for themselves was a really exciting day out for them all."
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