Blake Livelyis wishing her "forever sister" Amber Tamblyna very happy birthday.

This Thursday marks the actress' 37th year on this earth and her Sisterhood of the Traveling Pants co-stars are sending her all the love in the world. On Instagram, Blake shared a cheeky pic of the cast along with a message to her "forever sister," who she forged a strong friendship with on the set of the beloved drama. 

Amber re-shared this Instagram Story along with the response: "Love you sis. Truly."

Though Amber, Blake, Alexis Bledel and America Ferrera live in different areas of the country, the actresses continue to be the best of friends, even as the years go by. Amber previously shared that their strong bond can always withstand the test of time. "That's the great thing about really good friendships is you can go a whole year without seeing someone and it's like you're right back in that same moment," she said.

To see some of their cutest photos together, from their days on the set to now, check out the gallery below!

Amber Tamblyn, America Ferrera, Blake Lively, Alexis Bledel

Instagram

Sisterhood of the Traveling Pants Cast

Instagram

Amber Tamblyn, America Ferrera, New Years Eve 2019

Instagram

Sisterhood of the Traveling Pants Cast

Instagram

Sisterhood of the Traveling Pants Cast

Instagram

America Ferrera, Alexis Bledel, Amber Tamblyn, Blake Lively

Marion Curtis/StarPix

Sisterhood of the Traveling Pants Cast

Instagram

Sisterhood of the Traveling Pants Cast

Instagram

Sisterhood of the Traveling Pants Cast

Instagram

Sisterhood of the Traveling Pants Cast

Instagram

Sisterhood of the Traveling Pants Cast

Instagram

Sisterhood of the Traveling Pants Cast

Instagram

We and our partners use cookies on this site to improve our service, perform analytics, personalize advertising, measure advertising performance, and remember website preferences. By using the site, you consent to these cookies. For more information on cookies including how to manage your consent visit our Cookie Policy.