Hi!
Thanks for your comment. You understood this exactly right. What I tried to show that these girls understand that they deserve it, so they show wonders of obedience. No forcing or anything.
I consider making dialogs, so the protagonist talks as well. Something appropriate to the story.
There are definitely some stories with girls that desire punishments. And I'm planning to add some more.
And that's right, there will be more updates.
There are different marks, and they also change from just red to more purple depending on the strenght option you pick at the start.
Spanking two girls in one scene is actually a good idea, I'll add this to my list of the things I consider for future updates)