Ooh, sounds like an interesting article, Jess!
As far as prostate stimulation goes, the best thing I've found is me lying on my back with my legs raised slightly - preferably resting on something as I could be there for a while. My partner slowly lubes me up, along with her fingers, and starts with a gentle massage of the area around the anus, and some stroking of my thighs. Then a firm but soft circular stroke of the anus, slowly moving just a touch deeper every few circles, letting me relax and take a finger (one at this point) at a pleasant pace.
Once she is inside me, her middle finger gently pushes in, probing along the "upper" wall (from the angle we're at), until she finds my prostate. Then she'll use gentle circular motions to massage it. The effects of this are twofold:
1) The direct prostate stimulation gives the physical sensation of ejaculation, without any actual discharge. This is very intense and pleasureable feeling.
2) The movement of the finger sort of "echoes" down the rectum and feels rather nice.
If we're feeling particularly saucy - and depending on the size of the partner in question's fingers, a second may be introduced, which changes the sensations to some extent, usually for the better.
Ideally, this would be coupled with some manual or oral penis stimulation, leading - in time! - to orgasm. When it comes, that orgasm is massively, massively enhanced by the prostate massage. At the very least, the ejaculation tends to be more powerful, and have greater volume, than usual. On occasions, I have had rapid multiple orgasms and ejaculations, and even a "full body orgasm" where I was unable to move and got a pleasurable pins and needles-style feeling in my extremities.
But anyway! Yes, key things for me with anal fingering and prostate stimulation:
- lots of preparation, touching and lube before actually delving in.
- lots of communication! (That, somewhat ironically, goes without saying…)
- stamina! It's likely that the extra stimulation will speed up orgasm, but it could still take a while, and keeping up the motion on the prostate is pretty key to keeping the sensations going.
I hope some of that helps, Jess.