"Violet Rose" by Ann Douglas. What Ann Douglas does especially well is set a mood and build anticipation. I have never made love to a woman in real life, and I don't intend to do so; but I *know* this is a realistic description of how it would be. I can almost *remember* this happening to me! The story takes a while to get started (but it builds anticipation while doing so), but then the sex is really hot. An excellent story.