The lack of dialogue choices hurts the experience.
The current MC is a switch, meaning he can go from being dominant to submissive, but IMO, most people are not like that, most people are either dominant or submissive, not both.
If you just added a very, very, very simple choice dialogue menu, you could easily cater to three audiences:
a) people who like their MC To be dominant and in control
b) people who like their MC to be submissive and not in control
c) people who like their MC to be a switch, can be dominant or submissive
A simple, simple dialogue choice will maximize your target audience and should increase revenue.
Remember, let the player CHOOSE which sexual action they want to perform, the more control you give the player, the more engaging their experience will be. Giving the player choice will increase their immersion.
Great render quality, some of the best I've ever seen, top 1% on this website, great job.
Ideas are very creative.