This has been a pretty good thread so far regarding prostate orgasms. I think the big problem for most people starting out is that there is all this expectation. When you read stories here and elsewhere about people having these out of body experiences through prostate stimulation you think "WOW...I want in on that!" Of course you do! The truth is though that very few people achieve any results right away. This is something that generally takes some learning and persistence, and what people over at the Aneros forums call "rewiring."
While I think the discussion at the Aneros forums can get a little bit over the top on a number of levels, the concept of rewiring is a good one, because it accurately describes how your brain processes the pleasure associated with having your pspot massaged. If all you have ever known is a penile orgasm, then it takes some time to learn how to accept and recognize the sensations that come from the pspot; they are very different than getting pleasure from the penis. That said, Scott mentioned in a post earlier in this thread that sometimes the pspot enthusiasts are a little too into just the prostate, and I agree with this. It's true that to make things happen, you do need to learn how to not touch your penis while getting pleasure from your prostate, but touching your penis can also enhance pleasures that you might be experiencing, just as touching other parts of your body can do the same (nipples, stomach, taint, neck , lips etc). Your whole body becomes ultra sensitive to touch as the prostate becomes aroused, and sometimes I'll put both hands on my penis and just hold it. I won't move my hands at all, and the feeling of my hands there can sometimes bring me over the edge into some verys strong non ejaculatory orgasms.
If you're having trouble getting anywhere, try lightly stroking the very tip of your penis on the underside. Don't press hard or masturbate as you normally would, just tease yourself a little. When you feel waves of pleasure, back off a little bit and see where they go. Eventually you will get to a point where you are in full control of the massager in your bum. I am at a point now after four years of going at it that I feel like I am riding whatever massager I'm using, and I can now appreciate the differences between them. Getting to this point took a lot of time, but I'm so glad that I figured it out because I honestly think that I'm a happier person because of the intense orgasms that I have regularly. Also, and I've mentioned this in other threads, I have found that marijuana is absolute magic for jump starting your journey into pspot orgasms. If that offends your sensibilities, no big deal... you will eventually get there if you keep with it. If you're open to trying weed and a prostate massager, I highly recommend that you do.