Just signed up to comment here. I am very glad this game exists as a dragon fan! Now, I may be in the minority but I also wanted to say I am very thankful for some of the more cruel sections and instances of violence both directed from, and toward the dragon protagonist particularly from foolish or overly bold decisions. I feel like that is something very much necessary for such a story.
I haven't gotten far enough to see if it's already a thing, but I wish to suggest a possible non-standard game over factor that I feel may otherwise be overlooked but can be used in a variety of situations to add more thought to future or existing sex scenes.
I think that given how it appears that a significant degree of the dragon's power will come from his virility, particularly dumb/inadvisable decisions during sex with characters who are not truly helpless ought to result in game overs from the dragon's penis getting maimed in ways that render it no longer usable.