Siblings never change.
Despite the fact that they may have reached maturity, started their own businesses, and even been married, people who grew up together as children will always consider themselves to be brothers and sisters in spirit. Due to the fact that they attended the same school, you can expect them to pick fights with one another, make fun of one another, and bring up embarrassing memories whenever they get the chance.
A photograph taken by the wedding photographer of a bridesmaid who had just fallen out of another’s arms and had a horrified expression on her face became one of the centerpieces of the new bride’s home once it was displayed there. It is guaranteed that the sister will be reminded of it on each and every occasion that she comes to visit. If it isn’t already like that, it ought to be.