2x07 - Like Mother, Like Daughter
Rory (Alexis Bledel) realizes she is perceived as a loner, and her reluctant efforts to socialize land her in the most popular clique at Chilton, while Lorelai (Lauren Graham) volunteers the Inn as a venue for a Chilton fund-raising fashion show and is horrified to find herself modeling matching outfits with her mother, Emily (Kelly Bishop).