This came a bit unexpected. So I just have three little points:
1) Thank goodness Lena isn't called Bibi, otherwise it might be copyright infringement.
2) The usual topic: The term "feedback" originated early 20th century (Merriam-Webster cited a source from 1915) in the technical sense and was used in the sense the VN uses it from the 1940s. I would be gladder if Neverlucky would have found a more "ancient" word for it, but it's no biggie.
3) I wonder if the final choices mean anything. I felt I either had the choice of
priming Lady Catherine (and as a consequence the other two girls?) for anal sex going forward, or
knock her up and clearly have her enjoy it in missionary or
same as before but her being indifferent in riding or
maybe found the reason why there are no kids around by having her swallow after missionary. Or there is no variable set at all and I am over-imaginative.