Vick, I don't know how much I'd be able to help you out with information, since I cum at the drop of a zipper. I've had orgasms from having my nipples sucked and even from a really good kiss.
The only thing that takes any work is a squirting orgasm. That happens after a slow teasing build-up and it can happen from either clitoral or vaginal stimulation.
__________________
|