It’s been a little more than a decade since then-fledging stars Blake Lively, Alexis Bledel, Amber Tamblyn, and America Ferrera joined forces for an ode to female friendship and the perfect pair of jeans in Sisterhood of the Traveling Pants. For those who grew up on that movie (millennial women, mostly), the continuing real-life friendship between these now very famous women means a good deal. So while there were many celebrities out on the streets Saturday to participate in Women’s Marches around the country, the presence of these women, in particular, matters more than you’d expect.

Ferrera and Tamblyn have always been the most politically active of the Sisterhood alums, so it was no surprise to see Ferrera take the stage and deliver an eloquent and impassioned speech to kick off the Woman's March in Washington, D.C. Hewing close to the themes of sisterhood and community, Ferrera addressed the groups who feel disenfranchised by the recent election:

We reject the demonization of our Muslim brothers and sisters. We demand an end to the systemic murder and incarceration of our black brothers and sisters. We will not give up our right to safe and legal abortions. We will not ask our LGBTQ families to go backwards. We will not go from being a nation of immigrants, to a nation of ignorance.

For a March that was criticized by some nonwhite activists as lacking inclusivity, Ferrera served as an important face of intersectional feminism. She was joined in Washington by Tamblyn, who, in penning some powerful essays on misogyny for Glamour last fall, has made her feelings on Donald Trump and women’s rights known. She spoke onstage during Planned Parenthood’s Pink Ball on Inauguration Day, so her presence at two protests on Saturday—pregnant as she is—in a bright-pink Planned Parenthood beanie wasn’t all that surprising.

But Lively has often been a bit more reserved when it comes to politics. Sharing Tamblyn’s essay on social media last fall, she was careful to phrase it as: “Whatever your beliefs, one thing is certain, the world must be a better, safer place for women and girls.” Still, Lively joined Tamblyn and thousands of other sisters in the streets of New York. She explained her reasons for marching on her own Instagram account:

Lively wrote:

I marched for my daughters, for my friends, for strangers, for myself, for Phoebe here in this picture who I met as she motivated everyone she came across. My march wasn't driven by hate. It was rooted in a very simple fact—we are all equal. I believe everyone can agree on that. Thank you to everyone who marched all over the world. I felt so hopeful and deeply grateful. #whyimarch

And while the fourth (more elusive) Sisterhood alum, Alexis Bledel, wasn’t photographed on the streets protesting, last week she made her position quite clear when she appeared at the Television Critics Association winter press tour to promote her upcoming series The Handmaid’s Tale. The story, based on Margaret Atwood’s dystopian novel about female oppression and reproductive rights, is “all the more relevant” now, Bledel told Vanity Fair, “given the political climate after this election.”

Of her rebellious character Offglen, Bledel observes: “She wants to right a lot of the wrongs that are happening around her and generate a movement—get more people to join. She’s a fighter, and I think she’s really inspiring.” Speaking specifically of current politics making The Handmaid’s Tale resonate more than ever, Bledel’s grew pained. “I can’t believe when I hear stuff like that,” she says of the G.O.P.’s effort to defund Planned Parenthood. “There’s a certain amount of ‘is this really happening?’ I’m pinching myself, wondering if this is really happening.”

Bledel’s dazed frustration, Lively’s uplifting message of hope, Tamblyn’s fierce activism, and Ferrera's serving as the face of one of the largest protests in this country’s history means that all four of these women wear their resistance a little differently. It never was, exactly, one size fits all for this sisterhood. And while any reunion between Lively, Bledel, Tamblyn, and Ferrera sparks the same hope among their long-time fans, Tamblyn cheekily hinted at the rumors of a Traveling Pants reboot with a perfectly timed political tweet, making use of the trending #alternativefacts hashtag.

Maybe Motherhood of the Traveling Protest? We’re in.