I'm a twitcher/shaker/quaker. The longer I edge, the more intense these involuntary reactions become, especially as I plateau to higher and higher levls. I've frequently referred to my ejaculations as mini thermonuclear explosions, and it can take upwards of 15-30 minutes before I regain all my composure. Because I can be so loud, I almost never play anywhere that can't afford as much privacy as possible.
I attribute this ability to experience body orgasm to the fact that my tits are irrevocably hard-wired to my cock; without titplay nothing will happen with my cock, with titplay I turn into a pulsing, quaking, pre-cum drooling fucktool. And because the intensity of the body orgasm is directly related to the relative levels of plateauing, I'm disinterested in any play session that doesn't last at least three hours, though I've held off and endured for as many as 23 hours (breaks, including a short nap included). Quickies don't appeal to me in the least.
I haven't always been this way, though I've always enjoyed explosive ejacs. The technique I've developed, involving both indulgence and denial, took many years and involved many teachers along the way (whether they realized it at the time or not). It's also quite correct that, rather than playing by a script, I play by a menu. And not everything on the menu necessitates an erection on my part in order to arouse my mind and spirit or the body, mind or spirit of my sexual partner.
It's also quite correct to say that most of the items on my sexual menu would be considered extreme* by most of the members here: that's fine. I revel in acts now that I'd have found incomprehensible 20 or 25 years ago. You live and learn.
*I only have two limits, aside from the given that I'm a non-versatile top and only serosort with fellow HIV+ individuals:
1) Consent: everything must be mutually consensual; and
2) Scat: the final frontier I'll have died never broaching.
Quick add following a review prior to posting:although possible, it's rare that I even approach the heights of sensation while wanking that I enjoy while having sex with someone else, and I've certainly never exceeded them.