There are other things of course (there should be a safe word, you ideally would be able to say the safe word during any point in any scene), but with the simulation boundaries of presenting a narrative in a text video game that stuff isn't really included anywhere, even with the softest of service top stuff like Aly's Ryn scenes.
I've played an example of a game that does do this. At any point during the sex scenes, you can pick the option to say your safe word, and the character immediately stops and makes sure you're alright before cleaning up and sending you on your way. It works well there, because the engine allows the placement of a dedicated Safe Word button outside the text box.
Full Service Shop by AlexisRoyce, Tsushi
All Lesbians Guaranteed a Happy Ending!
alexisroyce.itch.io