Hi. I used to have nice buildups to my orgasms, and the orgasm itself would last ten seconds or more, with a nice trail of pleasure.
The only difference I have noticed is that my semen/ejaculate is a much smaller volume than before. I recall both the volume and the lack of a prolonged orgasm to be similar to when I'd have sex the second time in one night. It seems to me, from past experience, that my orgasm would be best as long as the semen was being excreted. With the current small volume, my orgasm seems to match it in intensity.
Now, if I go for a few days without sex or masturbation, instead of a stronger orgasm, I'm disappointed with the short, mini-orgasm. Is this a normal sign of aging, or something else? Is there anything I can do about it?