reese witherspoon
Credit: Jamie McCarthy/Getty

Reese Witherspoon’s Instagram game is strong. She posts #TBTs, #FBFs, #OOTDs, #GOTDs, #HBDs, #MondayMuses, and more. Yesterday, she posted a #WCW that may surprise you. No, it isn’t her daughter Ava or her French Bulldog Pepper. It’s one of her Big Little Lies co-stars.

It’s Shailene Woodley!

We didn’t realize the two actresses were close, but judging from this series of silly snaps, they’re quickly becoming BFFs. The post comes in perfect timing too, because Shailene just joined Instagram.

The actresses are working together on the upcoming HBO series Big Little Lies, based on the book of the same name by Liane Moriarty. Reese plays Madeline Mackenzie and Shailene plays Jane Chapman. The cast is seriously star-studded, including Nicole Kidman, Adam Scott, Laura Dern, Alexander Skarsgard and more.

Reese appears to be having a ton of fun on the Big Little Lies set. Last week she posted this pic of her goofing around with Laura Dern. This friendship comes as no surprise, as they played a mother/daughter duo in Wild.

Keep the pics coming, Reese!