Are you inviting your mom and fmil to your bachelorette party? My MOH is planning on having a spa day then going out to the clubs & drinking later at night. I wouldn't mind my mom and FMIL coming to the spa day, but I feel iffy about inviting them when we do the later activities (I feel like it might be too inappropriate/uncomfortable-MOH said she's planning on getting a bunch of penis items) . I don't know if it would be rude to just say come for the spa, but ask if they can leave when we go out? Any advice on how to do this in a polite way?