Thanks for posting,
Sexual stimulation/satisfactions unfortunately varies from person to person and in others it seems more complicated. Most women usually require much time before they can reach orgasm or sexual stimulation. Unfortunately it is something we can voluntary control as it is part of our brain responsible for sexual desire/libido that plays this role and we can not at will decide if we want to feel pleasure in one way or the other.
You are and your boyfriend could try changing sexual positions while penetrating ( you may browse tons of articles online regarding sexual positions) and while doing this, your boyfriend should attempt with either his fingers or his penis to touch your G-spot
(which is a blind spot
just posterior to your symphis pubis or anterior to the vaginal entrance (above).
If you can not still achieve satisfaction, it is best you see a sex specialist (and both of you are advised to go).
Hope this helps