why sex plays a role in love....

most of the relationships are sex oriented,a few exceptions are there.why people more interested in physical beauty....i often think of that.my answer is thateveryone is conscious about onesown beauty nd in secret we all wish to be watched by everyone...the attraction between a male n female starts from their first meeting. it is controlled by the genetic hormones.then they have the strength to crush all the obstucles in front of them..love makes the pairs blind.they dont consider even their blood relations.in their eyes lover is the best n considerable person.she or he cannot even imagine the life without the other.