"On her first evening with Jonny, Angelina only took Knox along, and they got on like a house on fire," a source explained. "Knox is a sweet kid and I imagine she decided he was the easiest one to begin introductions with."
"She went back the next afternoon with Pax, who was curious to meet this guy she's always spoken so fondly about," the source continued. "They only hung out for a short while at Jonny’s apartment, but they seemed to get along well."
The source continued, "Angie is very happy because Pax keeps making noise about moving to New York someday soon, maybe even for school. She's glad he'll have someone she trusts around for him to go to for advice or just to see a friendly face."
On the Maleficent star's "date night" with the 48-year-old, they enjoyed dinner in his "small but stylish two-bedroom apartment," an insider spilled. Miller is said to have always held a "special place" in her heart.
"Angelina wanted to give her kids an educational trip to the big city, and she wanted to spend some time reconnecting with Jonny, too" the insider added.
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Jolie and Miller met in 1995 on the set of Hackers and tied the knot in 1996 before calling it quits three years later but remained on good terms. Miller went on to marry Michele Hicks in 2008 before splitting up a decade later.
"They took educational trips to museums and galleries, and ate hot dogs — they got the authentic Big Apple experience," the insider spilled. "She spoiled them but made sure they had educational field trips to suit their interests, too.
"She took Pax — who is her shadow and seems quite protective of Angelina — and Knox to science museums, while Shiloh, Zahara and Vivi are more creative types so she took them to art galleries," the source explained.
"Zahara is her mom’s mini-me when it comes to fashion, and Angelina took her to several designer boutiques for girls' shopping trips," the source continued. "Maddox spent most of his time in his room in the dark, playing [video game] Dungeons and Dragons."
Jolie and Pitt called it quits in 2016 but are still in a lengthy custody battle; Pitt was recently granted joint custody, OK! previously reported.
Though things seemed to be more than just friendly between Jolie and Miller, the Salt star is keeping her options open. In fact, an OK! insider recently revealed that Johnny Depp could be the one for Jolie. "A lot of their mutual friends think they’d actually be perfect for each other, and Johnny obviously feels the same!" the insider shared.
The Sun was the first to report on Jolie and Miller's reunion.