I always have a doubt is sex really this intense or they notch it up in manhwas?

yah because with all the gigantic sfx it feels like they hook up with a bluetooth speaker rather than each other

Depends. If you have crazy compatibility with someone it can be, but that doesn’t always go hand in hand with your feelings. Most people get together and have a honey moon phase, this is when they discover if they’re compatible BUT a lot of people aren’t but they stay together because they like the other person. This is why this kind of smex isn’t normal and if people expect this level of intensity they’ll probably end up disappointed. It’s like porn, very over the top and dramatic. Not saying people can’t have a great smex life but I’d say on average most is “fun, okay and satisfying “ very few are what’s depicted in media

It honestly depends. On a partner and how sensitive you are. It is different for everyone. One dude I've been toping was super sensitive and vocal to the point I was checking in if he was for real bc I myself am very silent and not sensitive practically at all so it was mindblowing for me someone could react like this. So yeah we are all build different but some people are build like manhwa bottoms aparently.