from what i can tell, the clitoris is a raw nerve ending.
alot of uncut men have told me there orgasms are fairly intense.
i was circumcised as a child and for a long time my orgasms were very mild. that all changed when i got my penis pierced. now when i have orgasms, my body shakes, i cant breathe, i cant feel my arms and legs for a while, then i start laughing uncontrollably. my piercer told me this is because when you are circumsized it covers alot of nerves with scar tissues, masking feeling, and when the scar tissue was opened due to the piercing, it uncovered alot of nerve endings resulting in heightened feeling during orgasm. all i have to say is thank GOD!.
so id imagine it has to do with the clitoris being an open nerve while most men are circumsized.
im probably wrong, but my experiance that is my wild ass guess