Man that would hurt. I've been sexually active for 6 years and you still can't get more much in there.

as for the physical problem causing her to not orgasm she would have had to been emensely scard inside, which would mean spikes and such. The hymen does not have any nerve endings that can lead to an orgasm so that is not why she doesn't orgasm. Her g-spot would have to be ripped to shreads and her clit would have to but cut off. So it's definately the mental side of the situation. A friend of mine was molested as a child by her female baby sitter and even though she wasn't physically damaged she's selfconcious she doesn't have sex. Neither does she feel comfortable being naked.
So even it is possiblefor her body to give her internal or external stimulation, doesn't mean her mind will. These wounds take time to heal.
I don't mean to be gory with all the cutting and spikes, but it's true. I know a fair bit about rape.