OK, I think I am understanding now. So the "bonus scene" for completing sister content is not in normal gameplay, just the bank?
Correct, same thing with the "bonus scene" for completing mom's content. The scenes ARE canon, but since neither mom's nor sister's stories have gotten to the point where vaginal sex would be available through normal gameplay, these scenes are provided as a preview (but also a peace offering to those who would otherwise accuse the game of giving the player "blue balls").
With the amount of confusion this causes (it seems to come up every other page in the thread), I will look into ways to try to present this concept to the player better.
There seem to be two distinct areas of confusion:
1. Many players seem to not know that the scene even exists, finishing the current story and then closing the game, assuming they've seen everything.
2. Others don't understand why the scene is present in the gallery when it was not shown to them in-game.
I will go off and contemplate this and come up with a solution. Preliminarily, I'm thinking something like this:
1. Give the player the option to play through the scene with a Yes/No prompt the moment it's unlocked (that way they will have seen the scene in normal gameplay)
2. When launching the scene(s) from the Spank Bank, give a short one-line text explaining the Bonus scene concept.
3. Give the Bonus scenes a special demarcation in the Polaroids in the Spank Bank (gallery).
Cheers!