You know i'm really enjoying this game so far, but i gotta say, it's quite annoying how often 'sexual frustration' is used as a crutch.
1. Quite quickly Ayame comes to clearly love the acts themselves. She doesn't need some other 'justification'.
2. It would be way more interesting if she didn't have any such justification, more interesting if she embraced it for the sake of it. Scenes often reference how the wrongness of it all makes it hotter. So it follows it'd be more wrong and more hotter if she had a wholly satisfying relationship with Robert. And still indulged anyway.
3. But worst of all, she DEFINITELY IS NOT sexually frustrated. I just watched a scene that more or less relied on her supposed 'sexual frustration' to make it happen. Meanwhile, she's been enthusiastically getting D like 5 times a week all over town. It makes NO SENSE.
Like i said i really enjoy the game, so this is not the end of the world, but i also think it's not the best implementation.