Michelle Obama and David Letterman just solidified their friendship.
The First Lady made her final appearance on The Late Show With David Letterman Thursday ahead of his retirement, and before diving into the important topics like joining forces, the late-night talk show host and FLOTUS caught up talking about their children.
Letterman, who has an 11-year-old son, sought advice from the mom of two because she has been through the "dark times" of moody teenagers. He explained to her that one day his son could be the epitome of joy and others they just argue "all the time." President Barack Obama's wife revealed one of her daughters—she wouldn't say which—was the same way.
"We call her 'salty biscuit,'" she said. "You never know what you're going to get."
Because Letterman's son is younger, he hasn't yet had to experience the onslaught of parties like FLOTUS has. Malia, 16, and Sasha, 13, are learning to deal with boys entering their daughters' lives.