On topic, given the new additions, though I requested such before, I believe that I did not articulate it correctly given how it was interpreted;
Would it be possible or and in your interest to adjust some of the scenes that are presently locked to completing the adventure, to instead following the trust/interest progression track, such as various sister-led creampie events, and her not being upset when you creampie with normal and bathroom sex?
Not only does it end up being jarring, if you rush the adventure early, with her going from barely being ok with sex to full promiscuity with the protagonist from completion of the adventure, it also removes any feelings of risk, imo, given the sister never initiates a situation or promotes such with such a risk until the risk is nonexistent (barring succubus blood later on, ofc.)
Also, given some of the newly added content in the mod, the sister can have very different reactions to creampies in the mod sex scenes vs original when your relationship values are high enough and you haven't gone on the adventure, with the sister being ok with things in the mod scenes she clearly isn't in the original ones.
And, expanding on this, as a suggested new scene, would it be at all possible to introduce such with variants where the protagonist cannot hold it in / back, such as in the nighttime cowgirl and bath tub reverse cowgirl scenes, where she isn't expecting it? Just a thought. I suppose, also, of asking on the possibility of any scenes being added in the future with aphrodisiac as a trigger, or other of the original items?
I continue to love all you've added with this mod, and have just begun to try out 6.2. I look forward to what you may bring in the future.