Whether or not you would like to think of it that way, sexual intercourse is a science. A lesson in biology can go a long way in making you more aware of how to arouse your partner. Your skin is the largest organ in your body and nerve endings are spread all over it: some areas have more of them and some have less - this is what makes some parts of your body more sensitive than others. From blowing air onto the back of the neck to leaving love-bites in the front, different people like different kinds of pressure on their neck during sexual activity. This is, of course, due to the many nerve endings present in the area. If your partner likes a light touch, you can gently brush her scalp with your fingertips.