My brother's wife wants to host my bridal shower. She is already planning to discuss with my two sisters, (one is my MOH, the other my bridesmaid) about the details of the party. My FH's sister is a bridesmaid as well, and I'm super close to her. Should she be involved in planning too? I don't want her to feel left out. I know whoever is hosting is responsible, and my sisters as well, but should I ask them if they want to include her in the planning? My sister, who is my MOH, is really excited and wants to do a bunch of stuff to prepare for it. I don't think it would really bother his sister, but what do you guys think? I obviously have no part in planning except giving them the guest list.