"Reese's son and my son are best friends," Sarah shared, adding that, sometimes, they even carpool together.
It's because of this closeness that a recent on-stage musical revival of Sarah and Reese's 1999 teen drama came as such a surprise to the stars, for a number of different reasons.
"We all see each other, so you don't realize you're getting older," the 38-year-old actress said. "Then all of the sudden you're faced with the revival of your movie, with all these young kids in it, and were like, 'Oh, we're old.' That's when it hits you."