I asked my bridal party last year, and I'm getting married in Oct 2020. My sister and I have never really been close, and we lost both our parents the last couple years. My sister is not my MOH, but a bridesmaid. I have a MOH, but my sister and i have gotten really close over the planning of my wedding. I want to ask her to be co-MOH without offending my current MOH, how can i word it to both of them where it's not offensive? THANK YOU!