Hi, everyone. I am the Matron of Honor in my younger sister's wedding this next spring. Unfortunately, I live a few hours away with a brand new baby, so I feel like a bit of a schlub sometimes as far as my ability to physically be there for some of the wedding stuff. The groom's sister, who happens to live in the same city as me, is there for everything. And she is a very, how to say... take charge person. The current problem is the bachelorette party. I haven't really started planning it at all, since the wedding is still 10 months away. I do, however, have a few things in mind I thought would be nice. Yesterday, my sister calls me and out of the blue asks what I think of a Disney World Vacation wedding bachelorette party, because "Groom's sister proposed planning it and I thought that would be cool". I tried to protest by saying I'm not comfortable with asking the whole wedding party to take time off/shell out for something like that, and she informs me she's already asked all of them if they want to do it and they said "sure". Wtf. I can't afford a trip to WDW for myself plus subsidizing hers and I'm not asking anyone else to, either, as I'm pretty sure they all just said "sure" because they felt as caught off guard as me.
So, tl;dr, I don't know what to do about helping with the big MOH stuff, because clearly groom's sister is shoehorning herself in with crazy expensive ideas (she did the same for the engagement party, which she offered to host but then expected me to help pay for) and getting my sister all excited, so then I feel like a gigantic asshole poopooing the idea. She also invited herself along to every dress shopping outting, etc. and was not shy about giving all of her input on everything my sister tried on. Guess what, chick; it's not your wedding.
ETA: My sister, in interest of maintaining family peace, will not stand up to her whatsoever. Am I allowed to quit my own sister's wedding?