I cannot tell what specific voice it was, but it was some default tts from a website which originally was quite horrible. I then tweaked it in Propellerheads Reason with filtering, manually tuned the siblings pitches an and then pitched the whole verse I think 2.5 halftones higher which gives the casual bored woman a younger appearence. I like to work on voices.
on Do Not Resist - wet pitched full verse by Heistergand