so, this is a hilarioulsly distasteful subject, so it seems. But I have been reading some ancient literature around masturbation and sex and have tried some of it it out - yeah,go, Thel.
The most amazing thing I found out is that if you have a sister, or even if you masturbate about a sister doing this to you, provides the most sexually satisfying orgasm in male-life. This is indeed a weird science we have much to thank the compulsively-masturbatory yogi's for.
Place a very tight elastic band around the whole base scrotum and around the top of the penis. Ideally your sister is doing this to you. Pull backward and downward against the shaft, digging your fingers into the testicles, and pulling the erect penis up by groping at the testicles and pullling them vigourously downwards.
Rubbing like this on the side of the and down the testicles should give what is called a "squire" orgasm. It is usually accompanied by a stong smell emanating from the scrotum, and doesn't require touching the penis at all.
In the old days, this type of masturbation was reserved for kings, and they had the youngest female consort as a passive oral recipient of semen.