Celebrity Blake Lively 'Leans In' With 'Sisterhood' Costars to Encourage Women to Support Each Other Lively shared a snap of the four ladies on Instagram, promoting a good cause. By Naja Rayne Updated on December 1, 2020 09:42 PM Share Tweet Pin Email Photo: Instagram The Sisterhood of the Traveling Pants stars are reminding their fans to always be sisterly to one another. Blake Lively took to Instagram on Thursday, sharing a picture with her Sisterhood franchise cast mates Alexis Bledel, Amber Tamblyn and American Ferrera as a part of the Lean In Together campaign, which encourages women to support each other. “Not just my friends, but my sisters, my mentors, my inspiration – Artists, poets, activists, women. We can and do empower each other,” the pregnant actress captioned the throwback photo. “When women support each other, we accomplish amazing things. Celebrate the women who #LeanInTogether with you.” Other stars who support the movement include Kerry Washington, WNBA star Candace Parker and Facebook COO Sheryl Sandberg. WATCH: Blake Lively May Have Won Everything With This Flashback Tamblyn reposted the photo on her own Instagram, and remembered the moment in her caption. “This flight and trip was a very special and sacred day for me,” she wrote. “I love this photo so much. Surround yourself with good women in your life. It means everything. Love my sisters.” Lively has consistently kept in touch with her former cast mates, often sharing their reunions on Instagram. In January, Lively posted a pic with Tamblyn, as both ladies bundled up against the winter weather. Throughout the year, Tamblyn, 33, has used her own Instagram account to document meetings with her former costars, including quality time with Bledel, 34, and Ferrera, 32. “#tbt to right now. Love you sister. Happy new year,” she captioned a photo of herself and Ferrera in January.