Julia Roberts' mother Betty Lou Motes is now living with her daughter and her family in Malibu and the pair “are clinging to each other like they’re shipwrecked on an island” after the horror of the star's sister Nancy Motes' death, Breaking Celebrity News has been told.

As we previously reported, months of feuding between Roberts, 46, and her estranged sister Nancy, 37, came to an end with Motes’ reported suicide by drug overdose in February. Motes' long suicide note blamed Roberts for alleged mistreatment.

At a May memorial in their hometown of Smyrna, Georgia, Roberts reportedly got the last word.

Instead of peacefully burying the hatchet with her dead sibling, Breaking Celebrity News learned that Roberts instead launched a “harsh” and “bizarre” eulogy.

Still, the Pretty Woman star remains closer than ever to her mom Betty Lou, who has moved into Roberts' Malibu compound with husband Danny Moder and their three kids, twins Hazel and Phinnaeus and son Henry, 6. And although the Georgia woman, 79, has been diagnosed with lung cancer, she's been giving everyone her tender loving care, said the source.