When it comes to erogenous zones, the usual suspects are pretty obvious, but there are some really unexpected erogenous zones on our bodies, some of which can quickly heat things up in the bedroom.

What Is An Erogenous Zone?

An erogenous zone is an area of the human body which has increased sensitivity. The stimulation of this sensitive area leads to sexual fantasy, sexual arousal and eventually to an orgasm. While no two people's bodies are totally identical (think of erogenous zones as snowflakes, each one is similar, yet unique), we all do share general areas of particularly excitable skin. So, let's get started so you can check them all out for yourself!

The Scalp

I know, really? It may sound somewhat silly at first, but think back to the last time a lover gently ran their hands through your hair or maybe they got dominant with you and gave the hair at the base of your scalp a sharp tug. Felt really good, didn't it? Scalp massages are commonplace in massage parlors and in the beauty industry. In fact, you may have already experienced the pleasing and pleasurable aspects of getting a scalp massage while getting your hair washed at the salon. Rubbing this area of the body causes the production and release of feel-good hormones like dopamine and serotonin, resulting in relaxation and an improved mood. Getting relaxed and ready sounds a lot like foreplay to me.

The Armpits

Akin to the sideboob, the armpit is not only an area of the body which is extremely sensitive to the touch, but it may secrete pheromones as well. There is some controversy as to whether or not humans actually have pheromones or not, but the consensus is that if humans do emit these sexy and subliminal scents, they would come from the sebaceous glands located in the armpits. Many international scientific studies have been done on the effect of the scent from male armpits and its effect on the sexual arousal and menstruation cycles of females. It is thought that men's armpit BO can help to regulate irregular menstrual cycles in breeding aged women, and these study subjects only reported not minding the smell of a man's armpit during ovulation (a woman's most fertile time of the month). Whether there is definitive “proof” of human pheromones or not, I personally believe the smell of a man or woman's sebaceous glands is a very important part of sexual attraction.

The Back of the Knee

Since this area of the body tends to be smooth and hairless, it is an extra sensitive place to begin foreplay in or a way to spice up the action during sex. The skin on the back of the knee is most used to touching the skin of the calf and thigh, both of which are naturally dry areas of the body, so a quick lick or two, or a few drops of massage gel can drive you or your lover crazy with desire.

The Feet

Feet are a part of the body which causes a great deal of controversy when it comes to human sexuality. People seem to either have a love or hate relationship with feet. While some people find feet to be disgusting or repulsive, for others feet drive them mad with lust.

The popularity of pedicures and high heeled shoes would suggest that most people in modern day America are indeed infatuated with the sexuality of the foot. Ancient practices in China promoted foot binding techniques from a young age which would permanently alter the shape of a woman's foot in order to be more feminine, dainty and sexually pleasing. Even today in India, it is traditional for the feet to be adored and intricately painted with henna before marriage as a part of the bride's enticing wedding ensemble.

Feet have a high concentration of nerve endings which can cause an extreme amount of pleasure if stimulated in the correct way. Some folks simply enjoy a good old fashioned foot massage, some enjoy the sensations of having their feet tickled, while others love having their sensitive arches licked and their toes suckled. Interestingly, the area of the human brain which regulates the genitalia is in very close proximity to the area of the brain which registers tactile feelings in the feet.