I am widowed with 2 kids, he is divorced w 3.  We all live together as one big happy family....ok one big family.  Wanting something small and want the kids included.  Do I invite my former sisters-in-law?  They are my kids aunts, but I'm not sure how they will feel.  So far they have been very accepting of my fiance and my fiance is very supportive of the relationship between me and my past in-laws.  I don't want to offend them by NOT inviting them, but also don't want them to fee pressured to come.