Is the noise people make during sex real or fake?

Okay, I know this is wierd, but I'm just wondering. I've never had sex before so that's why I'm asking this and I'm not a kid or anything (I'm 18) so be honest. I just thought of this cause I was trying to sleep and heard my brother and his woman friend getting it on in the next room for what seemed like forever. It was a little uncomfortable, so I left, but that's reasonable right? I don't want to hear any of that, does that sound mean? Anyway... my question: So do people really make noise when they have sex?

sorry for the akwardness of the question.

nah its not akward...yes they do...but only if they are getting a lot of pleasure. some women or even men(mostly women) will fake those sounds just so the guy doesn't seem ashamed or w/e reason they have. but yes they are real...it would be kind of funny if they just made those sounds for no reason XD dont you think?

Wouldnt it more awkward if you didnt make sounds, like imagine it, just there doing it and thats it, silence.

Yeah, they on the most part are real. Some people are louder, some people are more quiet. But usually (unless one of them is faking) it is quite real.

of course! lots of noise! if your not being discrete that is..anywhoo..yea its normal whenever you decide to leave because you dont need to hear all that..so its all normal.

good question.
thats a human thing.
like if you get hurt you say 'ow!' or scream or something that shows you are hurt.
and its just like having sex.
if you get enough pleasure you just have to make some kind of noise to get the fact that it feels good.

you can do it silently but the noise onceyou let it out makes the whole thing way better and plus when youre involved its pretty hot

I dunno im kinda quiet