The "Sisterhood of the Traveling Pants" bond if still alive and well!

Blake Lively reunited with her "Sisterhood" costars, Amber Tamblyn and Alexis Bledel, to support America Ferrera in her new play "Lips Together, Teeth Apart."

In the photo, Blake poses alongside Amber while the "Gilmore Girls" star holds the Ferrera's playbill in front of her face.

"Go America! Supporting our girl in her play, Lips Together, Teeth Apart. #sisterhood," Amber captioned the Instagram pic.

The "Gossip Girl" star also showed off her big baby bump while out and about with Amber on a different night over the weekend.


"What a wonderful night with @amberrosetamblyn and @travislouie at the opening of his new show in NYC. He is one of my favorite artists and a great father, husband and man! So grateful to know him Ps. Thank you Amber for playing dress up with me #PreserveStyle Who can iSpy the @preserve_us pieces we borrowed?," she captioned sweet snap.

We love that the on-screen best friends are still as close as ever -- what do you think about their "Sisterhood of the Traveling Pants" reunion? Sound off below and click "Launch Gallery" above to see even more child stars then and now!