Heming, 41, shared on her Instagram stories on Monday that she and Willis, 65, are together again with their two children, Mabel, 8, and Evelyn, 6, after being separated since early last month.
Heming posted a photo taken by Mabel of her and the "Die Hard" star smiling together with Evelyn on a four-wheeler in a wooded area, as well as a video of her laughing with Willis while riding around.
She also shared video of Willis pushing Evelyn on a swing and a shot of him carrying her on his shoulders.
It's not clear if Willis has rejoined the family in Los Angeles or whether Heming and the girls traveled to Idaho, where Willis has been staying with Moore and their daughters, Rumer, 31, Scout, 28, and Tallulah, 26, during the pandemic.
“It’s actually been really cool,” she said. "My stepmom was supposed to come up here with my little sisters ... but my younger sister, who is about to be 7 years old, (was) at a park, had never gotten the talk about not (playing) with hypodermic needles that she found, so she actually tried to poke her shoe with it, and poked her foot.
"So my stepmom had to be in L.A. waiting to get the results from taking her to the doctor, so my dad came up here early, and then travel got crazy, so my stepmom stayed in L.A with my little sisters."
Heming and Willis, who have been married since 2009, are also celebrating Evelyn's sixth birthday on Tuesday.
With Willis reunited with Heming and the girls, his older daughters have enjoyed their time together with their father and mother.
"It’s been really funny to have both of my parents in the house where they raised us, which has been really cute," Scout said on the podcast. "They’re both such nerdy, adorable, ‘90s parents in a small town where they chose to have their kids and not be in L.A. It’s been pretty cute.
"It’s some divine timing too, of getting this much time to hang out with them."