I can get myself off in a minute by myself, but I think thats not nearly as common when your with your partner.
I'm just going to say that when I had an eating disorder, my libido went from nymphomania to dead over a period of three months. My desire for sex was 0. That alone would be enough to make orgasm practically impossible
i don't know dude i orgasm ALOT when it's done right, but i will agree that the drugs very well may have something to do with it.