I always thought it was purely social conditioning, but I've got a theory that just popped in my head. I wonder if women need to be more vocal to communicate "Yes that's good, keep doing that"? Like frankly my partner is often in charge of pace, depth, and even calling for position changes. I'm letting him know with my noises how good something is for me, If you should keep doing it, or if I get quiet he knows to try something different. I don't mind him being quiet at all, until I'm on top and then I'm like I literally cannot tell if this is good for you. I have to ask out loud "is that good?" And then change something, "is that good?" After a blow-job I have to ask him, what parts did you like more than the other parts? Obviously I can tell he's into it overall, but It's really hard to know if a rhythm or amount of pressure is better than another if moaning doesn't increase when you try something. Like he can absolutely tell when he hits a good spot when fingering me because my moans make it very obvious. I will straight say, "yes," "please," "right there," "don't move." All kinds of stuff. It's not just about making it hotter for the other person, it's about communicating how good something is for you so they don't have to do as much guessing

Trans woman here, and I can say from first hand experience that hormones change sexual response and desire. I'm guessing (and only guessing) that that is at least a part of the reason.

I know my own experience changed and i vocalise more, but even I can't tell you why.

Dude, got a tip for you. Make some noise. She'll love it.

Because of this : https://en.wikipedia.org/wiki/Female_copulatory_vocalizations

Try it sometime, my wife loves it and I grew to not be shy about it. There is something about letting out moans and noises that makes sex so much better.

I'm just here for the wont

You guys are all over thinking this. A lot. I'm pretty sure it's because basically all porn has a very loud female role and a near silent male role. There's been lots of studies on how porn affects people's actual sex lives. Vocalization is a part of that. Girls watch it in formative years, learn "This must be what my partner will find hot," just like tons of other emulated behavior from other media. Boys do the same.

Same reason dogs don't bark when they chase the mail truck.

my gf loves it when i make noise

As a trans woman, I noticed it started happening fully unintentionally after HRT. It's anecdotal, but makes me feel like there's definitely a chemical component because it actually surprised me.

Before I transitioned I was pretty much silent. Hormones affected that some, but I have to say I got way more vocal post-op. First time I got it in the vagina I was quite loud.

I think some of it is just what genitals people are rocking.

I don't know how I know the answer to this, and I'll try to keep it brief and simplify something more complex than I can go into given I'm typing on my phone, but here goes:

This goes wayyyyyyy back into our past as human beings. Women largely vocalize more than men during sex as a way to signal to other males in the area that sex is happening and that they should join in. It's encouragement for the male, but it goes deeper (heh) than that - the human penis is quite large as far as body to dick ratio for animals goes, and there are two reasons for that; the head is designed to 'scoop' competing males' semen out with each thrust in preparation for replacing it with the dick-haver's own, while the longer shaft allows deeper penetration in order to scoop as much as possible.

So basically, when a woman moans loudly, it's signifying she's ready to go, and that the strongest male in a group will be the one to eventually impregnate her. It's literally a survival of the fittest mechanism.

Now obviously that isn't the reason for it these days, as we're all aware that our intelligence as a species makes sex a vastly more complex thing than it is for other animals at this point in our evolutionary path, but that's what researchers believe is the origin of sexy female noises.

EDIT: This is a legitimate hypothesis. Not everything is some modern social construct with no link to any evolutionary advantages and survival of the fittest. I'm sorry if this challenges your narrow worldview.
https://en.wikipedia.org/wiki/Female_copulatory_vocalizations

See moaning and panting and the softly whispered "fuuuuucky yes" more as a means of expressing arousal and excitement. My SO is fairly vocal (involuntarily, I love it), but I had to learn it first. It really feels good tho', I suppose it depends on what your partner wants/likes?

I grunt and moan to signify my effort and enjoyment.

Porn has done it for dozens of years at this point, and it has just become not only an expectation, but just a thing that gets picked up.

The classic answer is training. Guys tend to jack it a lot from a young age and train themselves to be quiet. Girls tend to masturbate less so less practise there.

gonna agree with conditioning - we've been indoctrinated (by society) to behave in certain ways - like "men dont cry", etc (they do). people acting in certain ways in certain situations is normal - and expected. we've been programmed to expect it and respond to it.

@blahsay@lemmy.world is probably right about early conditioning for guys. But it can also change, and a lot of men are fairly vocal.