Why religions proscribe sexual pleasures? Is it not one of the reasons why there are rapists all over the world?
Your shower, your left/right hand, and your mother would like to have a chat with you. (and maybe also sisters and daughters if applicable) Sex before marriage or not;
rape ain't an option.
Also, while it may be a well-kept secret, it's a simple fact that women generally like sex as much, if not more than men. Some are verifiably insatiable, but it's up to them to pick you in some way or other, and raping is totally cheating. At the risk of being crude, for the sake of being honest: It seems to me wombs are much pickier about whom they want to be impregnated by, while willies tend to be okay with anything that is still somewhat fertile and attractive.
So I think it's wise to let the womb choose (wow, that must be the worst combination of feminism with condescending sexism possible, ahaha), lest our kids be crappy, or the sex be awkward and bad (because IMHO contraception doesn't change the dynamics of lust, or at least not completely; even if it's not about impregnation it's still about impregnation). And we should help our fellow men who are slower to pick up on things with physical and verbal strikes meant and able to incapacitate.