Gwyneth Paltrow described ex-husband Chris Martin as "like my brother" as she revealed their amicable family arrangement that regularly sees them sleeping over at each other's house.
The two "consciously uncoupled" in March 2014 but are often pictured together with their two children Apple, 11, and Moses, 9.
She told the American edition of Glamour magazine: "We spend a lot of time together. He's been away for two weeks (promoting his album). Last night he got in at midnight and slept here so he could surprise the kids in the morning, we could all have breakfast, and he could take them to school.
"So we're not living together, but he's more than welcome to be with us whenever he wants. And vice versa: I sleep in his house in Malibu a lot with the kids. We'll have a weekend all together; holidays, we're together.
"We're still very much a family, even though we don't have a romantic relationship. He's like my brother."
Asked if she would marry again, Paltrow, 43, replied: "I don't know. I guess so. I mean, I believe in marriage. But I'm not even divorced yet! So give me a minute."
She also revealed she was willing to take "slings and arrows" to carve a new path for women as mothers and businesswomen.
"Our daughters will look at us and be like, 'Oh, so you get to work and be a mommy and wear beautiful lipstick'."
She continued: "I mean, when they have a hole in their uniform, I sew it. I make the food; I bathe them. And I'm a sexual being and a powerful woman and entrepreneur. I'm all of those things. We now realise that we have permission to be everything."
But she lamented the "appalling" behaviour of critics who continued to pit her and fellow celebrity entrepreneurs Jessica Alba and Reese Witherspoon against each other and attack her lucrative lifestyle website Goop.
"I'm like, 'If you want to f*** with me, bring your A-game. At least have all your information... I don't lose sleep over it. It's my business to live my life and learn my lessons. I don't care what anybody else thinks," she railed.
The Oscar-winner has just created a line of organic cosmetics with Juice Beauty, the lipstick range of which is named after her A-list squad, including Drew Barrymore, Cameron Diaz and Kate Hudson.
She explained the importance of her pals: "If you were to ask me what my biggest success is, it's that I've been able to maintain and nourish my relationships. As you get older, you choose friends based on not only what feels resonant and warm but if they're bringing something to your life."
Gwyneth grew up in a rich and famous family as the daughter of director Bruce Paltrow and actress Blythe Danner, but her parents cut off her funds at 18 when she dropped out of University of California, Santa Barbara to be an actress.
Few will be able to picture it now, but she recalled having to "scrounge quarters to buy Starbucks and walk there to save gas", with her father offering her just one hot meal at home when she told him she was broke.
"People think, 'She's just a rich kid'. Until I was 18, I was. Then I was broke. I've never taken a dime off my parents. I'm completely self-made," she said.
:: The full interview is available in the March edition of Glamour US.