Thanks for making this list. There's actually a lot of scenes but they are hidden behind such specific choices. I dug around the code a bit to figure out how to unlock each scene.
If you want to increase stats, you can do so pretty easily using cheat engine. Most of the paths are based on what you do at the gym.
Gym 1a and 1b requires more than 70 corruption. There's also an option for choosing between 1a and 1b on the 1b path
The Alyssa/Val scenes require you to go home with Alyssa the day after the 3 of you go the cafe.
Alyssa/Val scene 2a require either Gym Scene 2 and MC to not mention anything, or Gym Scene 1b
For Alyssa/Val 2b, you need to have kept the door open back when you first visited Alyssa to have the option of letting Val get out of the bath
MC Family scene 2a requires corruption > 70 and Val Obedience > 30
Val/MC Dad Scene 2 requires gym scene 2 and MC to not mention anything
Val/MC Dad Scene 3b requires MC to tell Valerie he likes being watched as they fuck which requires Gym Scene 1a
Val/MC Dad Scene 3c requires Gym scene 1b, or Gym Scene 2 to happen and for MC to not mention anything at night
Val/MC Dad scene 4, Val needs to enter the shower in scene 2