Hello there! Sorry it took so long to respond.
As the system is new, I'm still working on how to make it better. I'm going to add a bunch of cosmetic stuff to both minigames, but I'm planning on making a few changes to how they work in general too.
As for difficulty, that will be changeable in the game settings, these changes will be avaliable at some point this month :)
I have thought a lot about difficulty complaints, some people have complained that you have to mash the buttons a bit too much to escape regular grabs, for example, but I don't want you to be able to escape from every grab in the default settings. If your corruption is high, your strenght is low, and a betty (strong one) grabs you, I don't want the player to be able to escape.
The same thought process works for the masturbation game. It will be harder to stop masturbating if you're high on corruption, because you can't control yourself.
All that will be adjustable, so don't worry! You'll be able to tailor your experience to suit the way you want to play the game.