My wife and I began our married life together over 30 years ago with complete candor about our sexual likes and desires. From the beginning, we have both strongly preferred masturbation (side-by-side and also solitary) and it is our love-making method of choice.
I discovered the prostate massage technique I use almost by accident a few years ago but now it is my routine way whether we are together as a couple or I am masturbating alone (several times a week).
I begin by lubricating my anal canal with KY. Lying on my right side with my knees flexed, I slowly slide a slender curved vibrating dildo inside my bottom. When I have found the right spot, I then move the dildo around inside of me (not in and out but side to side) until the prostate fluid begins to flow from my urethra.
The feeling is special, to say the least. Sometimes I go no further than this step, just enjoying the sensation. Other times, I will use a Panasonic vibrator on my dick (while continuing to lie on my side with the other vibrator still turned on inside my rectum) until I cum. This usually takes only a minute or two.
When I climax like this, my semen is much thicker than usual and the pleasure of my orgasm is almost overwhelmingly intense. It is made even more special if my wife, lying beside me, reaches her climax at about the same moment.