If you're keen for your horny and sexy to improve her English, then you should help her browsing the fiction section for some good twentieth century titles - a good bit of Graham Greene would be just the job, teaching your cute female escort GFE girlfriend some good English that's clear and precisely written without being over the top or unnecessarily complicated.

If you want something a bit more up-to-date, something by the late, great Douglas Adams should set the cute submissive and bisexual girl's imagination on fire.