Bat Mitzvah Dress 13 Year Old Where Do 13 Year Old Girls Shop For Dresses To Wear To Other People's Bar And Bat Mitzvahs?

Where do 13 year old girls shop for dresses to wear to other people's bar and bat mitzvahs? - bat mitzvah dress 13 year old

My little sister is a girl of 13 years (dress size 0). She has trouble finding clothes online that you like. She wants to look "cute and sexy in their clothes. Do you know where to find the clothes? Thanks!