Prostate and traditional dry orgasm

I have a few different things to mention:

First: yesterday, I had an interesting session, where the aneros touched the prostate in a totally new way; it felt like a piano hammer hitting a chord (in an excellent way). The vibration went into my leg and lasted about a second. I was so shocked and taken by surprise, that I started breathing very heavily with a slight panic. It didn't last long, the momentum was gone. Well, I tried to regain that former feeling by clenching the aneros harder (I know, I know, it goes against everything I've read here in the forums and the wiki. I know I can't force things) and kind of felt a good feeling but nothing like before. Anyways, it was too hard and now I'm sore in the prostate area. Next time I won't force, and I'll be tender.

Second: Anyways, today I was doing traditional penile masturbation. I knew I was hitting the point of no return, so I clenched my PC very hard for about a minute while I orgasmed, but nothing came out.... no ejaculation.

I guess my question is this: is part of the trick to dry t-orgasm the ability to control your prostate from pumping? Most of you are very in tune with your prostate and maybe you have insight into it. I kind of wonder if my prostate, being sore, was less inclined to start the pumping.