Why is the Plole woman hanging the wash "beautiful"?

Winston finds the Prole woman beautiful because she has lived a life. She has been through the pleasures and the pain that a real life has to offer. Winston envies this woman. He envies how she has put out several kids and now takes care of grandkids. She still sings even though her youth is gone. Winston still finds her beautiful. She is everything the party isn't. There is beauty in her big arms and wide hips, a beauty that party members will never experience themselves.