AdultJunkie, at the beginning of the latest Lisa scene,
her corruption is increased if you knock on the door and enter after seeing her use the water bottle on herself. So far, so good; the indicator and the stat change seem to match. However, if later you
make her cum while fingering her, the indicator shows up but there's not actual corruption increase. I can only assume that there's an error either
in showing the indicator when you don't intend to or in failing to increase her points after showing the notification.