My bridesmaids are throwing me a bridal shower, to which I'll invite my female family and friends. My fiance's sisters are also being nice enough to throw me a separate shower to invite the groom's family and family friends. My question is, do I invite the female members of my finance's family to the bridesmaids shower? I'm fine either way I just don't want to a) insult them by not inviting them, or b) offend/annoy them by inviting them to a second shower (where they might feel like they have to get a gift even though they wouldn't). I will of course invite finance's mom, just not sure about the other female family members.
There's already some touchy-ness about fiance's family's involvement (shocker!) so I want to do the right thing.
Thanks for the help!