Kids sharing bedroom

[babyfornine]

For a week holiday, kids haven't seen each other for a couple of years.

One family has girls aged 11 and 4 and boys aged 9 and 5.

Other family has girls 14 and 3 and boy aged 12.

3 bedrooms for children

How would you organise the kids?

How many beds in each bedroom?

Boys together
older girls
younger girls

Or family 1 girls
family 2 girls
all boys

Beds /mattresses can be switched around

Room 1- bunk bed and single bed

Room 2 - 2 single beds

Room 3 - double bed and sofa bed

I assumed that the 3 youngest kids would share.
Then our older two would share and theirs would too as the kids don't know each other that well

Dd(11) would much rather share with DS(9) than a 14 year old girl she doesn't know well but their 14 year old girl might not want to share with 12 year old brother