There's a lot of potential here. I'd personally like a day/night system, whether that's a toggle or just a time function, and different kinds of lighting accordingly. Also, femme bystanders would be good too, and while I'm making wishes here NPCs taking advantage of your pose would be great. Character customization would also be nice but isn't necessary. All in all, it's pretty good so far, and could be really great in the future.
Like, if you choose a squatting pose an NPC might initiate an oral sex animation based on that, is what I'm imagining. I don't know how complex that would be to code, but it would be really fun I think. Maybe you could categorize poses based on what parts they make available and NPC-initiated sex animations could require certain body parts to be exposed? Does that make sense?
I see what you mean now, to be honest I hadn't considered how posing would interact with the future implementation of groping or other sexual acts, but I'll keep it in mind when I have to implement it.
The main issue is that while I see it plausible code wise, I'm not a very skilled artist so It'll take a while for my artistic abilities to get there (making the male nude model and sex animations). What will probably come sooner is that I open a patreon to gather the funds to hire an artist or to buy already made models.
In any case when the time comes I might play with a few ideas on how to approach that feature, I had though something like, when an npc reaches you to do something you have to do a quick time event to avoid it or something along those lines, only if the player chooses to have that feature enabled of course.