My sister in-law asked me and my two other sisters to be bridesmaids in her wedding when she married our brother. I am not particularly close with her and thinking that she just needed more bridesmaids. Now I am planning a wedding and have already asked my three sisters and one friend to be in my wedding party.
Is it common for in-laws to assume they should be part of the wedding party? I'm just worried about offending her if she is expecting me to ask her and I don't deliver.