Which preposition to use with aunties

for Occurrences 4%

"Jimsy can fly the Red Dragon, and that leaves Roy and auntie for the biplane," she went on, bubbling over with enthusiasm as her plans matured and took form.

from Occurrences 2%

She called her father papa, and Juliet mamma; Dorothy had been auntie from the first.

in Occurrences 2%

[Enter AUNTIE in a negligee morning gown.

Which preposition to use with  aunties