There are almost contradiction with everyone's opinion. It is based upon the culture and attitude of the people.  Please just respect whatever someone will say in the issue. In my country, we are culture centered wherein virginity is almost sacred. But the tradition and beliefs slowly faded, there are people specially the teens who undergo in premarital sex not knowing how it will ruin their life. Because we are lured by our own emotions, we are easily controlled by our libido. We are just a human and we are always commit sins.