I would honestly like to see some quests where we can help the characters with insecurities or issues like the Serpent and the T-Rex. I could see it being possible for the serpent to get shaken down for money by an actually malicious company and you are able to help him. Since the Curse Kastle Boss seems legitimately chill and the most malicious character in my opinion is the kangaroo, who even then is more pompous and has an overinflated ego but doesn't really do anything malicious. The most malicious company ironically seems to be the hospital providing those... violence inducing drugs. Then there's also possible kinks which you could possibly develop a deeper relationship with the characters in order to get to.
My enthusiasm might be a bit too detailed but honestly I like this game because it not only can be horny but knows when to pull it back and hit you with the feels.
Oh, one last question.
What is your favorite part of working on each character story and why? I would like to know a little bit more about the characters themselves, both in a day to day experience as well as in the bedroom.