Sex is the most important task because it tells your character. There is two different kinda sex: rape and prostitution ( some of you think that "if she gets paid and he is satisfied, how has anyone been hurt?"). Rest, there is love, sharing companionship, trust and dedication than go for sex, it happens within commited couple, married people, and GF BF. Once you have sex it means you not only love her/him , but also do sharing, caring, and much more. If you had done this before, it's likly 5% people have chance to break the relationship. Ok, guy you come up with idea that you do sex with a gal whom you don't know anything? It is just bull-shit.