I'd distinguish between two types of multiple orgasms:
Firstly, those which come from having a short refractory period. I've certainly been able to have more than one orgasm within, say, 10 minutes or so during an extended session with my woman. With increasing age I'd have to admit that this has become rarer, though still eminently achievable.
However, within the last few months I accidentally discovered a technique that will allow me to orgasm up to four times within a minute. As you can probably imagine this was a delightful discovery...
. I can't report on whether this would work for anyone else, but hey, if you don't try....!
It works like this. After a lot of foreplay and some delightfully prolonged thrusting I will be right on the edge. Just before I start to cum I keep completely still (and my woman does too), whereupon I have the first exquisite orgasm. Something about the stillness, though, means my body decides I need more. So I recommence thrusting, quite hard, and this brings me to orgasm at least once more, and sometimes twice or three times. Each peak is exquisitely distinguishable and isolatable from the previous one.
This also happened once during oral - my woman was between my legs, licking my frenulum (which I love!
). She kept licking as I came, then a second peak followed immediately afterwards. I was left in a quivering heap! She reports that there were two separate ejaculations.
My only regret is that I discovered this at the age of 55. All that wasted time...