The main thing is the way you had your character change so dramatically from the girl we met at the beginning to the one who know sashays through your pages in such a confident and sensual manner. 10/10 for that
The back-story was told in an economical manner that did not detract from the main premise - 10/10 for that
The sex scenes were handled very well, nothing too dramatic and nothing held back so 10/10 for that
In summation I will return to see just how our Millie Price gets on in the next chapters