Now in India when you said something like "pre-maritial sex is ok" you are in big trouble.
Whats the matter actually? when man go fooling around and cheat their wife by having sex with another woman, at the same time they expect their bride to be a virgin, it is ok, but at the same time they would not allow their wife to be share by other.
The logic is, every women can be share except my wife, and if you women cannot keep purity before marriage, it is your problem. We, man, can sleep around, but; you, women, must keep your purity before marriage.