Jenna Bush Hager‘s twin sister, Barbara Bush, made a surprising revelation about the pair’s close sibling bond.

“Frankly, I don’t mean to be morbid, but I hope we die at the same time,” Bush admits in Deborah Roberts‘ new book, Sisters Loved and Treasured: Stories of Unbreakable Bonds, per multiple outlets. “I’ve never known the world without Jenna in it, and I would be devastated to be in it without her.”

Originally published on tvinsider.com, part of the BLOX Digital Content Exchange.