The labia majoris also contain within their folds the rest of the external genital structure of woman. Here we find the clitoris, the vestibule, and the urethra, or opening to the bladder.

The clitoris is by far the most important and most widely misunderstood part of the external genitalia. It lies immediately above the top fold of the labia minoris and is a little piece of tissue slightly less thick than a pencil. This organ is enormously important to the whole psychological and sexual development of the individual woman. It is often called the “homologue of the male penis,” and this simply means that in the embryo the cells which form the penis in the male are the same cells which form the clitoris in the female. Thus the two organs have the same cellular derivation.

The clitoris, like the male penis, is made up of erectile tissue, and when a woman is sexually excited it becomes erect in the same manner that the penis does. It also has a head and a foreskin covering it, and the head of the clitoris, at least in children and adolescents, is generally extremely sensitive to stimulation. In the fully mature female this sensitivity often diminishes, giving way to the vagina as the primary source of the greatest sexual pleasure. However, many women who become fully mature sexually maintain much of the original sexual responsiveness of the clitoris.

The remainder of the external genitalia is contained within the vestibule. This is the entrance proper to the vagina and is very susceptible to sexual excitation. The vestibule lies between the minor lips and is directly beneath the clitoris. It contains the hymen, the urethral opening, and the openings of the glands of Bartholin.

The hymen is generally referred to as the maidenhead. It is a thin membrane which partly covers the entrance to the vagina. There is no direct sexual sensation on the hymen, and sometimes pain is experienced when it is perforated, usually during the first intercourse, although the hymen can be broken by an accident in childhood, through the insertion of surgical instruments, etc. Because of the pain associated with its perforation and the stories that a young girl often hears about this pain, it can be a source of much anxiety to her and condition her attitude toward sex in general.

The glands of Bartholin are of great importance to the act of love. These glands discharge a thin colorless mucus in sexual excitation, and this lubricates the vaginal opening and canal during intercourse. The amount of secretion varies greatly with each individual. Sexual frigidity often affects these glands adversely, causing the secretions to be inadequate or nonexistent. However, the amount of secretion will also vary rather dramatically at times in the individual who has no basic sexual blocking, and therefore the glands of Bartholin cannot be taken as a final criterion of sexual adequacy or inadequacy.

And now we come to the most important part of a woman’s anatomical sexual equipment: the vagina. This is a passageway of some three to three and a half inches which extends from the vestibule on the outside of the cervix, which is the bottom end of the uterus. The vagina is, of course, the canal which accepts the penis, and it may interest you to know that in Latin the word literally means “a sheath for a sword.” The sexual act in its purest form expresses the essential passivity associated with women and the aggressiveness of the male, the actor and the acted upon. The Romans understood this basic difference at least linguistically.

It may have surprised you to learn of the relatively short length of the vagina. The tissue of its walls are extremely elastic, however, and not only can it contain a penis of virtually any thickness or length, but it can stretch enough to allow the newborn infant to pass through it. The penis presses against the cervical end of the uterus, which may be forced upward until the penis gains full entrance. Contact with the soft tissue of the cervix is a source of great pleasure for the male, and the pressure can be an equal pleasure for the woman.

The vaginal walls are lined with a soft skin, not unlike mucous membrane, but it does not secrete as mucous tissue will. A secretion is, however, released from the cervix, and this also helps to lubricate the vaginal canal during intercourse.

I have said that the vagina is the most important part of a woman’s sexual equipment. This is so because it is within the vagina that the orgasm of the truly mature woman takes place. Upon it and within it she receives the greatest sensual pleasure that it is possible for a woman to experience.