DUH! THE SAME REASON WHY WE DO! IT FEELS GOOD! THE THING ABOUT SEX IS, IT WAS MADE FOR ONE PURPOSE AND USED FOR ANOTHER. SEX IS NOT TO BE EXPLOITED AND TO MAKE YOU FEEL GOOD, BUT TO REPRODUCE AND MAKE LIFE. MEN WERE CREATED FOR THAT PURPOSE AND WOMEN WERE CREATED TO GIVE BIRTH TO LIFE...