They're Stepmothers! Stepmother-Daughter Corruption
The one who doesn't want her mother to see her doing anything naughty is her daughter, and the one who doesn't want her daughter to see her doing anything naughty is her mother.
The one who doesn't want her mother to see her doing anything naughty is her daughter, and the one who doesn't want her daughter to see her doing anything naughty is her mother.