I had some time to think about it and put the different puzzle pieces into place.
Here is my pitch:
We start with a small worn down brothel, it has currently one room and one woman (Human). Further rooms and women need to be bought with (in-game) money.
Possible upgrades:
- the rooms
- unlock more rooms
- unlock themes (Human -> tavern, Cat -> jungle, Wolf -> tundra / cave, etc.)
- the women
- unlock more women (Cat, Wolf, Elf?, Fox?, Harpy?, Mermaid?, Lamia?, etc.)
- unlock outfits (Human -> dirndl, Cat -> loincloth, etc.)
- unlock make up or skins (change color of hair, eyes, clothes, etc.)
- unlock positions (titfuck, blowjob, missionary, doggystyle, etc.)
- level up (higher level -> better at work -> higher money/minute)
- the player (brothel manager)
- upgrade brothel (overall look, advertisement, etc.) -> more customers
- upgrade clicks (progress a scene quicker)
- unlock auto-click (passively speed up scenes in all rooms)
The levels of a woman can lock other features for later, for example: Human level 5 can unlock position titfuck for 500 money and at level 20 the outfit for 10000. Unlocking the first position of a woman should activate auto-clicking for her room. (till then, the player has to click, for customers to finish.)
Unlocking themes for rooms could level up the brothel itself, making it a more prestigious place, increasing your money/minute. The brothel level can lock / unlock brothel upgrades.
The player would be the manager of the brothel, which means there should be a few different looking men for the scenes to represent the customers. (Maybe other species as well: Cat, Wolf, etc.)
Regarding the scenes. The player can peek into the rooms, spying on the women with the customers, or, if a woman is currently free, can have a go themselves. Climax scene included.
So the game play loop would look something like this:
- buy a room and woman
- click that room to level the woman and gain money
- upgrade the woman for auto-clicking her room
- (get enough money to repeat the loop with the next woman)
- get all positions, unlock the room theme and outfit, enjoy your woman
This would be my suggestion for the game play, please change it or disregard it as you see fit. If you like skill trees there is probably a way to add them, want to tell a story, can be added as well, but I hope this can give a good start to try things out. :)