You've got a fun game going here. I'm glad to see updates whenever they come. I just had some various ideas and/or questions. Most will probably fall under "extra graphical details".
I appreciate that you're having the game be open-ended as far as encounters affecting the ending. Most games tend to be "oh you had a couple encounters GAME OVER". I lean toward the idea of "yeah, avoid the encounters, but if you get in one it's not the end of the world -- more so make it a mini challenge to escape from with debuffs, visual shame, and an affect on the ending.
It's probably a spritemare, but are there plans to have cum "stick" after the attacks?
Eg: In the soldier encounter, it looks like she's going to get a facial, which could mark her face/hair/chest until she gets cleaned up... Or in the case of creampies she could also get drip particles when she runs/jumps/kicks. In the case of inflation, would it spill during the end animation or stay with her, or just disappear afterward?
How many enemy types were you planning on having?
Are there plans to have more than one position for each enemy? A lot of the RoR genre games I've played tend to just pick between two animations, though I'm an entertainment-value nut and would be stupid and go "do ALL the positions!

" and probably never complete the game. Scope creep is not your friend!
When is the "open invitation" feature planned to be added?
Could inviting enemies for sex be used as a false lure for a sneak kill? If so, it could have a chance to backfire, resulting in a no-escape, rough sex encounter.
The arousal bar, I think it was... what would that change as it fills?
Also, is she a virgin at the start of this game? Avoiding all encounters result in a purity ending if so... Also could have a small pregnancy chance from each encounter that might give her a large belly in the ending, noting what she turned out to be pregnant with.
Finally... were there any thoughts on adding an "internal view" window near her when in an encounter?