Male orgasm and ejaculation are not synonymous with each other. Orgasm can occur without ejaculation, and ejaculation can occur without orgasm. They are two separate physiological processes. In the former it is referred to as a male orgasm (the non-ejaculatory variety, a.k.a. coitus reservatus, Tantric, Taoist: depending on your sexosophy), in the latter it is known as ejaculatory anhedonia, which is referred to in the literature as being a medical condition.
I have read the following book. I highly recommend it for learning the technique. It is heavy on the sexosophy of eastern philosophy. If the sexosophy is not your cup of tea, just skip to the exercises
Some men choose to use a variety of different techniques which enable them to have multiple orgasms without ejaculation. Here I will list the various different techniques by their scientific terms. All of the following have been used in history as a natural male form of birth control. If the origin is known I will list.
