Research shows that women have more than one erogenous zones, that make them feel aroused during foreplay. Apart from the vagina, lips and breasts, the uncommon ones are the back of the knees, the inner thigh, the wrists, the nape of the neck and ears. Ask your man to breathe on your neck or lick the back of your knees. The inside of the thighs are highly sensitive to touching, stroking and licking. Just like the back of the knees, inner thighs also have many nerve endings, and will turn you on like crazy.