There have been controversy as to the different types of orgasms a woman can have, with a suggestion that orgasms achieved through vaginal penetration only are more matured than clitoral orgasms.
Surveys have revealed, however, that most women are unable to have an orgasms without some clitoral stimulation before or during intercourse. It now appears that the female orgasms originates from the clitoris whether it is directly stimulated (by stroking or kissing) or by indirect stimulation (by penile thrusting).
The other controversy surrounds the existence or non-existence of the 'G-spot' - an area located in the vagina just behind the clitoris. Some women find stimulation of this area highly arousing. It is thought that the pressure on this area stimulates either the clitoris or the urethra indirectly, and is therefore pleasurable and exciting.
All these issues aside, the truth is that female sexual arousal is more complex and less obvious than the male response and most women take time to learn what their bodies like, and what is possible in conventional sexual positions and with each new partner. Most couples, if they are willing to experiment and communicate, will find a pattern of behavior that satisfies them both.