icing-on-the-cake

I couldn__ believe it; my deepest darkest fantasy of a cute school girl slowly stripping in front of me was finally unbelievingly coming true! Furthermore, it wasn__ just any school girl, but one from my school, that was the icing on the cake, or at least it should have been. Because, at the same time that my fantasy was becoming reality, I felt that I was being very badly cheated. Why couldn__ it have been sixteen year old Heather Johnson or fifteen year old Pamela wade stripping before me, instead of the eight year old Ami Fujishiro?