Any chance you could expand the romance options? You say the right answers with your romance options and accumulate affection points. Each person has a "route" and if you choose the correct answers and end up with one of them you gradually are rewarded with 2-3 sex scenes often paced out evenly in their route. You can do this for Michael, Jonathan and Greg and some of the other men in the series. Or you can even add some of the women as potential romance options. Like a lesbian route.
Also just curious if you're open to an incest route with Greg because you pretty much never see that in any visual novels, especially with a muscular heroine and muscular big bro.