So my FH is planning on having his dad at his bachelor party. His dads a pretty cool guy, they hang out all the time. My MOH has started planning my Bachelorette party. So far its looking like we spend a day or two at a hotel by the beach and go out at night. Well my FMIL has invited herself. I guess she figures that if his dad is going so is she. She said she'd hang out with us during the day and the beginning of the night but she doesn't stay up late so she would go to bed early. UMMM, this seems awkward to me. I want to have fun and not have to worry about minding my Ps and Qs. I don't know what to do!!! Any advice?