Almost every porn game ever was written by such people. They actually think vaginas get loose from having sex. Or that women get "tighter" when aroused - which is the exact opposite of how vaginas actually work. Or that women get off on rape - which isn't the case even for women with a rapeplay fetish.
The vast majority of men are absolutely ignorant about all of this.
My favourite is the magical flesh barrier that is the hymen and as soon as a woman tears it she's impure and used goods.
I see it on so many games it's actually astounding, you'd think people writing for porn would do better but no.
To be fair, it is worth noting that a woman does not always understand how vaginas work.
That's why I didn't mention a gender/sex but that the writer was a megavirgin.
I once met a girl who put tampons up her urethra.
I very much understand that a sheltered/uneducated person can fuck anatomy up.
Point is, you're writing a story, a sex story, you should know your main subject.
Then again every other interaction in that game was complete ass.
Again, I hope this one does better, though the dev has a bit of a history of not finishing anything,