Former First Lady, lawyer… pot smoker? Michelle Obama is opening up about everything from fighting and marriage counseling to smoking weed and living in the White House in her new book, Becoming. It seemed like no topic was off limits for the 54-year-old, who even admitted to fooling around with an ex in his car when she was just 17-year-old.

“We went on real dates, going for what we considered upscale dinners at Red Lobster and to the movies,” Michelle wrote of her now ex-boyfriend, David. “We fooled around and smoked pot in his car.”

In fact, Barack Obama — the former president of the United States — also smoked pot as a teen while living in Hawaii, his wife dished.

Barack and Michelle Obama
WASHINGTON, DC – JANUARY 21: Barack and Michelle Obama dance together during the former Commander-in-Chief’s Inaugural Ball at the Walter Washington Convention Center Jan. 21, 2013 in Washington, DC. (Photo by Chip Somodevilla/Getty Images) Getty Images

But smoking was seemingly common in Michelle’s upbringing. She often witnessed her parents smoking cigarettes when she was growing up and said Barack “smoked the same way” they did — “after meals, walking down a city block, or when he was feeling anxious and needed to do something with his hands.”

On Monday, Barnes & Noble announced that Michelle’s highly-anticipated memoir had sold the most preorders of an adult book since Harper Lee’s Go Set a Watchman, which was published in July 2015 and went on to be the largest first-day sales for adult fiction in the company’s history.

“We’ve already seen tremendous demand for Becoming before it has even hit the shelves,” said Liz Harwell, Senior Director of Merchandising, Trade Books at Barnes & Noble. “Our stores across the country are ready for huge demand tomorrow for what will likely be the biggest book of the season during what has been a blockbuster publishing calendar.”

Michelle’s book is currently available in Barnes & Noble stores throughout the country and on barnesandnoble.com.