Dude, how did you get the youngest one? I've already done two runs, the first one I finished with Bella and Liza, Alina and the girls on the island, and in the second one I got them all but I was missing the younger sister
Hey back, eangt. First off, keep a sharp eye on the little heart-shaped' icon in the upper right corner of the game screen. That way you can keep track of each character's lust/corruption level.
Second, any time you come to a choice that may be significant, save the game.
Treat everyone right and aboveboard,, and your character will prosper.
1st Day: Kiss Rachel. Take a shower whenever, and she'll be shocked to see you naked. Follow her, knock on her door, and be treated to the sight of her jerking off thinking about your PC's cock.
Several days later, peek at Rachel when she's in the shower.
Several days after that, you'll be overcome with lust and decide to jerk off in your room. When you notice someone peeking in, keep on doing it. You're well on your way.
There's also a .pdf walkthrough that you can find on line. I've forgotten where since it's been over a year since I wrapped this game up.
Best,
Blind Owl