My DP has a pretty dysfunctional family, parents no alive and 2 sisters. Both sisters have 2 grown up kids of their own - one has no contact with either children and the other has 4 grandchildren and even childminds for one childs 2 kids (without charge).
We are hosting Christmas and my parents and brother coming over (brother on Christmas Day as he has his kids in the morning before going to their mums). We invited DP's sister who is not in touch with her kids and she's accepted but asked if we were inviting the other sister.
Now, whilst we have a good sized house we have 2 kids ourselves and it would require us to make 3 or 4 bedrooms available if both sisters came. I hate turfing my kids out of their room at Christmas as it means they have no personal space when things are already manic.
We invited the one sister so she wouldn't be alone as we expected the other one to spend time with her own kids (at least with the one who she childminds for) but it seems she hasn't been invited!
Now I feel emotionally blackmailed to invite the other sister. I like the intimacy of Christmas morning with the kids opening stockings.
AIBU if I say to the sisters (both in late 50's) that they are welcome from midday on Christmas Day? My DB wont be here til the afternoon so it's not favoring one family over another and it means that I can have a lovely Christmas Eve/Christmas morning with the kids. Its likely to be the last before they stop believing in Santa. We'd cook Christmas Dinner for early evening so they wouldn't miss out on us feeding them either. They can then stay over til they have to head home sometime after Boxing Day.