I just found out by accident: there are LI who climax in the middle of certain sex scenes. And this climax in turn is part of game mechanics in some scenes. I didn't know that before. We have to remember that for the future. I'm sure there will be more such scenes
And now I understand why I never had a problem getting the threesome to happen.
I always make sure that the girls the MC is having sex with cum at least 2 or 3 times before having the MC cum.
I falsely thought it would increase their affection or something.
Never thought that making the girls cum would/could lead to new content or scenes.
I'll edit my original comment/post to reflect this new information.
Thanks for finding this out and also, thank your wife as well.
Since she led you away from the game while you were playing it which in turn, led you to this discovery.