This morning I was browsing the web looking for bras. For some reason all those pictures of women in bras gave me an erection. What a throwback to my high school days when we wanked off to pictures of women wearing bras in those mail order catalogs.
But that is what happned, and that is what I did. Ten minutes later, after gentle massaging of the tip (here is where having a foreskin is a tremendous advantage), I had an enjoyable orgasm. It was a dry orgasm, of course, since my prostate is quite shriviled after 22 months without testosterone. I think my erection was more like 4 inches then its former six inches, but enough to do the job.
I guess my sub-concious decided it had enough built-up sexual energy from the adrenal glands to need a release, even if I felt no concious need for such a release. Very strange, but fun, and just shows that eunuch biology is very much along the lines of YMWV.