Cafe: Bridget and Gemma do the girl talk thing, which, as usual, is all about Henry and his cheating heart. Bridget tells Gemma that if she loves Henry, she has to fight for him. Before Gemma leaves for a solo shopping trip to get something for her twins, she grabs Bridget's hand and tells her what an amazing friend she is. "Like a sister." And we flashback to...
The Past: The flashback starts in black and white, but then the Show remembers that the Kelly twins aren't all that old, so the color returns. The sisters are about 10, here. They're window shopping at a jewelry store. They want to find something nice, but their mother only gave them twenty bucks. They spot two matching necklaces with silver filigree heart pendants. In the center is a light blue stone -- the color is somewhere between an aquamarine and blue Topaz -- so, it's colored glass. Now, it's October in the real world, but early enough into October, that I could buy the girls' birthday is in September, so it seems to me the writers should have specified that props department find faux sapphire necklaces, because, SCIENCE FACT: little girls love their birthstone!
The necklaces cost $14.95 a piece, so when they realize can only afford one, Bridget is bummed. "But it's our birthday." Shiv agrees. "I know. We're supposed to have tons of presents and a crazy party." ...To accompany Shiv's overgrown sense of entitlement, I presume. Shiv: "I hate being poor. When I get older, I'm going to have everything I want." Note, they in no way look "poor" -- just not wealthy. Bridget: "I just want that." This whole scene gives a handy bit of characterization. Shiv proposes they buy and share it, which I'm taking as intentionally nuanced. From the rest of the conversation, it's clear that even then, Shiv was the greedier of the two girls, but once upon a time, her greed had no effect on her desire to please her sister.
At any rate, Shiv's idea is this: Bridget can wear it for the first year. Next year on their birthday, it will be Shiv's turn, and they can trade off like that each birthday. Bridget sounds excited. "Like forever?" Some people in the show thread questioned whether siblings that age would ever think up or be able to abide by such a plan. From this only child's observation, twins are different from ordinary siblings -- particularly identical twins. My dad was an identical. Once, when they were quite little, my uncle got hit by a car and broke his arm. Dad was so upset -- yelled so loud -- that the ambulance took him to the hospital, by mistake.