Jenna Bush Hager and Barbara Pierce Bush.Photo: Nathan R. Congleton

WhenJenna Bush Hagergot a late-night text that her twin sister Barbara Pierce Bush had gone into labor almost six weeks early, she called Barbara’s husband Craig Coyne and burst into tears.
“I started bawling. I was like, ‘Wait, wait, wait. This is not helpful. I’m supposed to stay calm,’ " Jenna tells PEOPLE during a joint interview with Barbara about their upcoming children’s book,The Superpower Sisterhood.
“Of course, I was nervous for her and knew that she was unprepared physically — meaning she didn’t have the diapers or the nursery set up,” theToday with Hoda and Jennaco-host, 40, continues. “But she was, of course, prepared because I think she has all the love to give.”
“I went there to go visit her and looked over on the wall, and it said Barbara Bush Children’s Hospital,” Barbara, 40, remembers. “So, in many ways, it felt divine that she was born in Maine near where we were married and where we have so many memories as a family. Then I felt how poignant and meaningful it was in a place that meant something to my grandmother.”
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Barbara Pierce Bush with her daughter Cora.Laura Foote


“There were so many people that said, ‘Gosh, I wish I had a sister, like you and Barbara [have],’ " Jenna says. “It reminded us a lot of our mom, who was an only child, and that sisterhood comes in so many different ways.”
The Superpower Sisterhoodfollows a young girl named Emma, who makes friends with two sets of sisters who move to her neighborhood. They quickly realize the power they have when they bring their unique set of talents together.
Barbara and Jenna hope their own girls will have equally powerful friendships and dedicated the book to them. (Jenna shares daughters Mila, 8, and Poppy, 6, and son Hal, 2, with husband Henry Hager.)

“To our daughters — may you use your powers to empower others,” they wrote.
Even though their children are all different ages, the authors are already seeing a special connection form between them — one they’ve always hoped for.
She adds, “I think that’s what Barbara and I envisioned as little girls in some ways. To watch it come true is so special.”
The Superpower Sisterhoodgoes on sale April 19.
source: people.com