Situational anorgasmia means that you can climax in one situation, but not in another. Many girls can easily come to orgasm when they masturbate, but have a hard time coming when they make love. This can also be true for guys. How to change this pattern?
Let go of the romantic notion that your lover knows what to do to make you come. Show him/her your sensitive spots and how you want these stimulated. Make sure your lover acquires the right technique.
Don’t expect to climax from intercourse alone. Most women don’t. Ask your lover to stimulate your genitals (orally).
Take responsibility for your own orgasm by taking an active role. Many girls are not used to this. You can for instance move your vulva rhythmically against his body, stimulate your clitoris yourself, introduce a vibrator and choose intercourse positions in which you control the movements.
When you come close to orgasm, shut out your lover mentally. Concentrate on your own feelings and thoughts. Without the solophase it’s hard to climax.
Masturbate in your lover’s presence, getting used to climaxing while you are together. This will also teach your lover how to caresses you.
Use a condom/birth control. Fear of pregnancy and/or STD’s may interfere with sexual excitement and keep you from coming.