Who knew even decades of friendship come with surprises? In a recent “Do You Even Know Me?” quiz for LADbible, longtime pals Jennifer Aniston and Reese Witherspoon revealed something hilarious: Aniston didn’t actually know Reese’s real name. It turns out “Reese” isn’t her first name — her full name is Laura Jeanne Reese Witherspoon. The twist? Reese has gone by her middle name since before she stepped into Hollywood’s spotlight.

When Reese asked Jen to guess between Jane, Jeanne, or Joan for her middle name, Aniston picked “Jane.” That’s when Witherspoon smiled and said, “It’s Jeanne. I’m Laura Jeanne.” Cue the shocked “Laura? Who the hell’s Laura?” from Aniston. She also revealed that Aniston’s middle name is Joanna, inspiring Reese to start calling her “J.J.” — whether it sticks is another story.