Real Story of a Hijabi Girl cummed on

I'm a girl and I'm 18 years old and I was recently m*****ed. It was pretty minor but it's still serious to me. Last Saturday, I went to a sleepover at a friend's house and that's where I was m*****ed. I don't know exactly when I was m*****ed, though... I'll tell you what I mean. My friend has 3 brothers. Two of them are 13 years old and the other one is 14 years old. Anyways, I went to sleep with my friend in the living room. When I woke up the next day, there was a lot of cum all over my face and my hijab. I only take my hijab off when I'm showering... So, I don't take it off when I'm sleeping. And it was completely covered with cum! I know that it was cum because I know what it looks like since I've seen it in porn videos. After I woke up, I was freaked out and I asked my friend what the hell happened and she said that her horny brothers obviously did it. I know that she was right because there was a lot of cum on my face and my hijab so I know that more than one guy did it and her brothers are perverts (me and my friend once walked in on them watching porn on their computer). She told me that I should just move on and get over it. She obviously doesn't think that it's a big deal but it is to me. I wiped the cum off my face and my hijab and I went home. I didn't talk to her brothers but I was furious. Right now, I'm thinking about if I should tell my parents or not (I haven't told them yet). I'm Muslim (my religion is Islam) so I'm not allowed to have any type of sex until marriage. And if getting cummed on counts as sex, my parents are probably gonna be really mad at me and tell me that I should be more cautious and they'll never let me go to any sleepovers again. Anyways, the question I wanna ask is really about my friend's 3 brothers. Should I talk to them about it? I wanna but I also kind of don't wanna. At first, I was angry but now I don't feel angry at all and I'm just sad that it happened to me. I'm never gonna go to a sleepover at that friend's house again! Anyways, if you think that I should talk to them, how do you think I should do it? With anger or calmly? Should I tell their parents? I don't know what I should do... I want to encourage them to never do that with any girl again but I also don't want to get them in big trouble... I know that it's pretty common for horny boys their age to do things like that.