I have a really big wedding party - 9 girls - 3 of whom are sisters of mine or my fiance.  The problem is, I truly do not want to have a bachelorette party of any kind.  I don't think all the girls will get along and I will feel a lot of pressure to make everyone happy.  It is just a situation I'd rather avoid but a few of the bridesmaids are making me feel like I'm being selfish by not having one.  We are all in our 30's so I didn't think this would be an issue.  Thoughts?  Do I need to do something?