I read this in a comic book for teenage girls. It was spoken by a boy to a group of girls he was passing by. He said, "Eh, les biches! Je peux vous emprunter votre portable une seconde?" And one responded, smiling, "Pourquoi pas?". How would one translate "les biches" in english? And, in french, when is it acceptable to use? Would it not be acceptable to say in an office setting? Or to older than teenage girls?