i'm 55 and for 30+ years,i've been enjoying orgasms just as you describe.never done yoga,but smoked weed back in the day.guess i just learned to"give in to it".i think a lot of men just cum and that's it.my whole body quakes,i get dizzy,sometimes almost cry,contractions are 10-15 very strong+the most"delisious aftershocks"where my prostate area clenches involuntarily,and the aftercum just runs out!i can jack off and cum in 21/2 min.,but a complete ORGASM is to die for when it just goes on&on&on&...