Episode 28 of "Gilmore girls"
s02e07 Like Mother, Like Daughter

Headmaster Charleston decrees that both Gilmore girls need to improve their socialization skills at Chilton if they want him to write a glowing recommendation for Rory's Harvard application. Rory's first attempt to socialize leads her to ask a group of girls at lunch if she could join them. They agree and hit it off famously. After lunch, an insanely jealous Paris accosts Rory and tells her the the group that she innocently stumbled into is "The Puffs", Chilton's famed secret sorority. Paris would do anything to join, and she begs Rory not to bad-mouth her to the group. At the next opportunity, Rory talks Paris up to the group and they are both accepted as pledges. The Puffs "kidnap" Rory, Paris and the other pledges very early one morning under the guise of taking them to breakfast, but instead take them to Headmaster Charleston's office to be initiated into the group. In the middle of the ceremony, they are discovered by Charleston and the security guards. He calls their parents and threatens their college careers, until Rory stands up to him and says that if he hadn't forced her to socialize, she wouldn't be there at all. He agrees and reconsiders, saying that she is a good student who deserves to go to Harvard. After being chided by Emily for her lack of participation, Lorelai joins the Booster Club and offers to host a fundraising fashion show at the Inn. To her dismay, she discovers that the Booster Club mothers are the models... not wanting to be mortified by herself, and to exact a little payback for being chided, she signs Emily up to model as well. On the day of the show, Lorelai calls Luke to fix the runway, and he catches the eye of Eva, the Booster Club president, who's quite taken with him. Lorelai becomes uncomfortable when she sees them huddled together talking. The day goes even further downhill when Lorelai discovers that she and Emily will be modeling matching mother-daughter outfits. They end up looking terrific and having a ball struting their stuff on the runway, and the show is a tremendous success. Back in Stars Hollow, Lorelai visits Luke at the diner and asks him not to go out with Eva, She offers the pathetic reason that she wants keep her Stars Hollow life and her Chilton life separate, and that Luke's dating Eva will combine the two. Luke sees right through her, and after letting her that he'll date whoever he pleases, tells her that he's not interested in Eva and was only giving her directions back to Hartford. Lorelai, secretly happy but realizing she's made a fool of herself, hurries out of the diner, to Luke's amusement.