Is sex necessary before marrage

Not at all. If you wait till you're married to have sex, then all the more power to you, you should be proud of that. Sex is never necessary in a relationship, and if your partner is trying pressure you into having sex, then you should find a new partner, someone who can respect you for the way you are.

There is a couple different ways to look at that. If you have never had sex and want to wait till marriage good for you but, marriage is a sacred vow and it's supposed to be for life. If you get married and then decide that you wished you would of experienced sex with other men you may find your self wondering away from your marriage. Take awhile to decide.

Nope, Sex is when two people love each other (or do it for the sake of the feeling) You can have sex whenever but in some countries you have to have Sex after your married, some your not allowed till your 16, 18 or 21.