My (M) partner (F) shared early on in our relationship her fantasy of orgasm denial.
In the beginning it was tricky, it was hard for me to really feel that I was pleasing her when she was not allowed to orgasm, especially since she always took such great care of me. But overtime I have finally understood that she enjoyed being edged and denied far more than when she was allowed to orgasm. She explained it as offering her most inner desire and need to me, to do with as I please. In a sense it’s the most romantic gift that I can be given, to be in full control of her pleasure.