Actually accord to the scripture sex after marriage is the best and acceptable in the Bible but as the world is becoming so global that is how things is getting out of hands like before in the olding days were things are done according to how it written in the scripture, so many people might prefer sex before marriage because the world is not like the days of our four fathers where by people married before sex, so many people will prefer testing the woman they are getting married to because most of the woman out there are leaving a life that is not pleasant to eyes, so many people prefer sex before marriage to check if the women is productive.