Welcome to scarleteen!
First lesson: Sexual Response.
Women don't all respond to the same things. There is no end all, catch all that every woman gets off with. With that said, only an estimated 30% of women are able to orgasm through intercourse alone. This is why there are so many different sexual activities.
For many women, the clitoris is the most sensitive area, which makes sense. All the nerve endings that cover a man's penis are concentrated in a woman's clitoris.
So. Can he get you to orgasm through sex? Yes. Intercourse alone? Unlikely. Sex covers a vast range of activities. Explore a bit more through foreplay, and explore each other.
Please read these articles, as they'll help.
Orgasm and Sexual Response
Pink Parts: Female Sexual Anatomy
From OW! To Wow!
[This message has been edited by DarkChild717 (edited 12-31-2005).]