Greetings,
I’m trying to put this in a way so non-Arabs or non-Muslims in general can understand the Islam point of view, rather thinking Islam is a "joy killer" and that Islam wasn't made so Muslims can have fun, because this's wrong, it's just, when God sent Islam to us, everything was just considered, so here I go trying to explain it.
1. Sexual diseases, this doesn't need to be explained! if there is no rule that stops you from having sex as much as you want with different women then it's so easy to catch HIV because condoms do not protect you 100% from getting HIV, and even if they do protect you from HIV still they won't protect you from skin-to-skin STD's
"Condoms may not work as well against STDs spread through skin-to-skin touching, like herpes and genital warts, because condoms may not cover the infected areas." From Washoe County District Health Department Web site.
2. Psychological problems, knowing that you are sleeping with a woman and knowing that woman might sleep or does sleep with other men will shake your trust in women, and incase you'll get married or you are married you won't be able to trust your wife 100% as you think all women are like the woman you slept with, this's one small aspect or example of the Psychological problems related to free sex in which I mean sex with no boundaries or limits, another example is, loving a woman you sleep with and pay would even be worse, because she's doing it for business ONLY, and this's very possible I knew a lot of people who did it, or even loving a girl who just wants fun...
3. Children, so, you slept with this hot girl you see in work everyday, and oops, the condom didn't work or you don't like using condoms, and oops she's pregnant!, are you going to marry her? Let’s say yes! Then I think this's a good thing to do, but what if its no? What will happen to the child? Abortion? You want to kill a soul? Ok let's say you do but she doesn’t! What will happen to this child? Who will raise him? How would you live with the fact that you have a child and you didn't want him!?
4. Troubles and a lot of troubles, in most of the Arab world, if a girl isn't virgin and she's not married, and neither divorced, 90% she's going to die! Either by killing her self or her family will kill her! this's because of old cultural issues while Islam didn't say kill a woman who have sex before marriage, Islam said to punish her, but not by death, and not even by seeing if she's virgin or not, in Islam, you need four witnesses to prove that this is a case of adultery, and then the man and the woman who did it will face punishment, so back to the troubles point, you don't want to see a woman you love dead! And you don't want to mess up her reputation.
anyways, I was trying to give SOME of the reasons which I THINK they are reasonable, I’d like it if you can provide more reasons why it is wrong to have sex with just anyone or just for fun, and I don't mean to offence any culture or anyone, and one last request, please don't turn this into a chat thread, if you have a comment please leave it, if you need to chat another member about something not related to this subject, please use the PMs, that was a request and not an order, and I force no one to do anything.
Thank you very much.