Sisters forever! The 'Sisterhood of the Traveling Pants' had a mini-reunion

Does the Sisterhood of the Traveling Pants exist IRL? Blake Lively's Instagram has been full of the sisterhood this week — and we can only dream that Lively and her Pants co-star Amber Tamblyn were swapping jeans (and other secrets to their eternal beauty) when this adorable reunion happened.

And Lively hasn't forgotten about her other co-stars either, shouting out fellow Sisterhood member America Ferrera in her brand-new NBC show Superstore.

Alexis Bledel, where you at? Hoping she's the next stop on Lively's late-00s nostalgia tour.