Also adding to this, maybe change the way it happens depending on what route youre on. If youre on the gutslut route maybe Anne tells Nala to swallow her, but on the other routes its Nala with the plan and you need to agree on it maybe...
When looking for a place to hide from Maki with Nala, adding an option to hide in Nalas stomach would be awesome.
Also maybe a joke ending. When waking up after the intro, have an option to leave the house.