Sisters for all! 

Blake Lively Amber TamblynA mini Sisterhood of Traveling PantsThis weekend is the reunion. Tamblyn posted a video on Oct. 31 showing her opening a packet of Betty Buzz, Lively’s new line non-alcoholic sparkling mixers.

“Look at what I got in my mail,” the 38-year old actress told her followers. “Ooooooh, Betty Buzz!” It’s beautiful! Take a look inside! It’s so beautiful!”

But the surprise didn’t stop there. Tamblyn stated, “So this was the largest package that I’ve ever gotten in the mail.” “There was like a whole package inside and then there were, like, two people inside.” It was quite bizarre.”

Tamblyn then panted the camera to show Lively behind her. The 34-year-old actress was wearing a bright red wraparound dress and a brunette wig, most likely to celebrate Halloween.

As Sisterhood of Traveling Pants fans know, Lively Tamblyn starred in the 2005 movie and its 2008 sequel along with America Ferrera and Alexis Bledel. Ferrera was actually enthralled by the post of her former co stars and wrote in the comments, “Ahahaha!”