Intensity you have to experience for yourself!!
This is my experience I save for the times I have ample time to spare. I lay down on my bed totally naked. I strap my legs together around my knees to ensure that I cannot suddenly be overcome with anticipation, spread my legs and stroke wildly to orgasm. I then slowly stroke my penis and I do mean slowly, never slowing, never speeding up, and never stopping. I alternate between full fist and thumb and two fingers on the head. The feeling rises to incredible levels, feeling like climax but never ejaculating. I ride wave after wave for normally about an hour when suddenly my penis twitches with the non mistakable feeling of ejaculation. I can't help but stroke wildly and rapidly, the orgasm is intense and I raise my hips high in the air and ejaculate into my open panting mouth. If I start missing my wife aims my penis for me and feeds me the semen that I miss aimed. I highly recommend it for those who would love to try something new. And, believe it or not, my semen tastes very pleasant. After all, I need refreshment after an hour of stroking.