My future brother-in-law just proposed to his girlfriend of just over a year a couple days ago. I've already been engaged for almost two years now and my wedding is in August, so all seven of my girls are all set. But then my future mother-in-law told me that my now future sister-in-law wants to have me in her party because we're all going to be family. My fml told her a good out for me by saying I'm already deep and almost done with all my planing and I may not ask her because things are settling, but I'm hoping that since my fsl was just so excited that she said it by not really thinking through it. As much as I'd love to have her by my side for my wedding, I don't really know her all that well and I feel eight girls is waaaaayy too many! Should I include her?