The clitoris is actually a lot larger than most people think. Mary Roach, a sexuality researcher, says the part of the clitoris that you can see with the naked eye is only 1/10th of the size of the clitoris. The remainder is located inside the body. The clitoris has been compared to the penis as it is made up of erectile tissue, becomes engorged with blood with physiological arousal, gets erect, contains the vast majority of the nerve endings (twice as many as the head of the penis), and is most often required to be stimulated in order for orgasm both during penetrative sex and outside of intercourse. This diagram provides a visual of the actual size of the clitoris in yellow. Many women report a “g-spot” arousal response with a “come hither” motion of the finger during digital penetration. This is due to the clitoris being stimulated through the vaginal wall as it runs internally in the woman’s body.