How to prolong or have multiple orgasms

Dear Dr. Milrod: Can you reveal any tricks to hold off an orgasm or have multiple orgasms without softening, that tantric practitioners seem to refer to? I find that when I am having sex, I really enjoy getting to the edge and trying to stay there without ejaculating. Unfortunately, most times, this does not last long and I blow too quickly! I have tried jerking off just prior to intercourse but then it takes a little while to get hard. I sort of stay semi-hard, which is okay... Read More