Book: the multi orgasmic man, by Mantak Chia
I had been practicing the exercises laid out in this book for 6 months without too much success.
The book helped me last longer in bed but nothing beyond that.
I dropped the practices for over 2 years.
Then when I ran Diamond, all that practice came back, and without intending to at all, I had a full body non ejaculatory orgasm during sex. It was mind blowing.
Diamond definitely helped me activate old sexual energy practices and properly utilize them.
I imagine Khan Black would be EVEN BETTER.
so, try the multi orgasmic man by mantak chia as itās, for me at least, proven to interact positively with subs