When you say she can orgasm from grinding, that tells me her citoris has sensation. The grinding is stimulating her clit, maybe your tongue isn't giving her the pressure it needs or maybe you need to work on technique. Is she able to bring herself to orgasm through masturbation? If so, can she show you how she does it and give you pointers of where to touch and how to touch.
Most women do no orgasm from intercourse alone (some studies say as high as 70%), so her chances of having orgasm during sex is low without learning how to stimulate her clit at the same time.View Thread
Whatever you decide, please break it off with your boyfriend before you decide to look outside of your relationship. If you are looking for a good man, you have to start by being a good woman.View Thread
Anon_475 is right. Some men who maturbate too much can only orgasm that way, he needs to re-train himself to orgasm during intercourse. The hand is much tighter and drier that no vagina can possibly duplicate that kind of stimulation.View Thread