I think this happens when there is too much clitoral stimulation...that is painful, in my experience. A woman has to get away from the pain in order to climax...and her genitals are too tender.
What worked for me is a minimum amount of clitoral stimulation, nothing direct, and mostly nipple and mental and emotional stimulation when driving for orgasm...or light body stroking and teasing without any touching of erogenous zones. Or....great sex talk, or whatever,

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The main erogenous zone is the brain....a woman is best advised to find what really makes her passionate, what pushes her over the edge....self-knowledge is a must in order to have a super orgasmic sex life, in my opinion.
Allowing a man to work over your genitals is about the worst way to have sex, in my opinion. He should primarily be "working over" your mind or everything *but* your genitals. Your genitals don't need help keeping up!! Porn has done women a great disservice in this regard, constantly focusing on genitals.