I've never had an orgasm as much as I've tried. Is there anyone who can suggest a 'method' that is likely to work?
Put some duct tape on your pussy, then jerk it off real fast, may not get an orgasm, but it will make you scream.
Try g spot toys or "twig toys" that have clitoral stimulators as well as g spot.
play with your pussy while getting fucked and play with your nipples at the same time, might as well have him rub your asshole while your doing the other 2 and getting fucked.
Have him lick your asshole. You will be guaranteed an orgasm.