Potoum
I haven't added the loss of lust mechanism to my FAQ yet because it will change for 1.9 to be more forgiving.
The girls lose lust when their lust is too high for too long.
I have played and don't find this to be so. They seem to lose lust all the time.
Still, I realize I should add something to the FAQ and will work on it. I'll add something about how if you ignore girls their affection and love goes down.
This is realistic, and I like it, especially for Jennifer and Yumiko, because you can't just ignore them after you max their stats. However, this system is especially punishing for Miriam and Mercedes since it isn't easy to raise their lust stats.
I suggest that Jennifer and Yumiko be added to the "Ignore them and they lose affection and love" list so that you have to pay attention to them as well.
Also, it is adverse to the way I want to play. I want all the girls to lust for me all the time. I want to kiss and grope these girls and have them show me their boobs as much as possible. If their lust is low, it's part of the game to work it back up.
However, with the girls losing lust because they self service when their lust is high, you should now keep their lust around 70 at all times or it will drop from 100 to 60.
The new system will be more random. The girls have a lower chance to lose lust and will lose 10, 20, 30, 40 or 50.
There will have to be some playtesting before this becomes finalized. When it does, I'll add it to my FAQ.
Another way to accomplish this realism without changing game play would be to raise the cap on the girl's lust to 150. Then they could lose lust if they get over 100. Then if I work them up to 150, it'll just drop to 100. Or I can coast with them all at 100.