Roman Catholicism states sex can only take place within marriage, outside of a marriage is classed as a sin, as sex is mainly for procreation
Church of England state sex within marriage is the ideal, but it may take place before marriage if a couple intend to marry and are in a committed relationship
Some say it is wise to cohabit before marriage to check you are compatible, than to risk the sin of divorce
Muslims and Roman Catholics don't allow sex before marriage and see this as sinful
Methodists accept that times have changed, premarital sex is not ideal but if the couple are committed and intend to marry, it isn't seen as a major sin
Prince William cohabited before marriage, some say this sets an example which others may follow
Traditionally, parents may help their children have an arranged marriage in Islam, but this is not required as Muhammed had both love and arranged marriages
New Testament: '"Anyone who does not provide for their relatives and especially for their own household, has denied the faith and is worse than an unbeliever."'