After copious planning and lots of therapy for all parties involved, Brad Pitt has now met with all six of his children, including the eldest son he and Angelina Jolie share, Maddox Jolie-Pitt.

TMZ reports Brad and 15-year-old Maddox -- along with a therapist -- got together Wednesday, Oct. 19, amid reports that Maddox preferred to stay with his mother on the two occasions when his siblings met with their father in the wake of the headline-making split.

According to the website, a plan was in place for father and son to reunite "a while back," but the the family therapist "felt the timing wasn't right." The latest report gives few details about why that was the case, but it may have stemmed from the investigation being conducted by the Department of Children and Family Services into an incident on a plane earlier this year during which Brad was allegedly verbally abusive towards Maddox.
Brad Pitt's son Maddox reportedly refused to see him after split: Maddox, Angelina and Brad in 2013  Invision/John Shearer/Invision/AP Maddox, Angelina and Brad in 2013
Initial reports suggested that argument came just a week or so before Angelina filed for divorce on Sept. 19.

Earlier this week, a source told Us Weekly Angelina "wants [the kids] to have a relationship with him once their health and safety is assured," a comment in line with sources close to Angelina who have reportedly told TMZ "she still wants their family to function with a fully involved father and mother."

Under the terms of a temporary custody agreement, both parents have retained legal custody, but Angelina has had sole physical custody, with Brad allowed visitiation. That agreement was set to terminate Oct. 20.

Looking ahead, an expert in family law says what the future holds will rely heavily on the results of the DFCS investigation.

"DCFS could decide to investigate the issues further or, they will have made findings about whether or not there is any danger to the children and those findings will be taken into consideration by the family court," Matthew K. Skarin, a certified family law specialist, tells People.

"If the DCFS matter is kept open, it doesn't necessarily mean that there have been any negative findings about either party. It could just mean that their investigation was inconclusive and they want to look into matters a little further. Assuming that there are no findings of any potential harm to any of the children, and DCFS is satisfied that the children are not in any danger with either of the parties, DCFS would then close their investigation."

In the meantime, Brad and Angelina have plenty to work out regarding both their divorce and the custody of their children, who in addition to Maddox include Pax, 12, Zahara, 11, Shiloh, 10, and 8-year-old twins Vivienne and Knox. So far, that's reportedly been difficult.

Speaking to People, an insider acknowledged,"Things are still strange and strained between them," adding that, "They are still working on issues that they can't agree on. It seems their issues still involve the kids."

When Angelina moved to end her nearly 12-year relationship with Brad, he released a statement underscoring the fact that the children's welfare was the estranged couple's main priority.

"I am very saddened by this, but what matters most now is the well-being of our kids," he said at the time. "I kindly ask the press to give them the space they deserve during this challenging time."