I will answer using my knoledge about the project.
The game itself have been created for the "Post appocaliptic survival" gameplay, In the origin there was no NSFW at all
Then the project shifted a bit on that kind of contet cuz the majority of the supporter were asking to do something LIGHT nsfw, so...no bestiarity, no furry, no rape, no poop, or pregnancy...
What about now?
Well... theres been a lot of changes since then, and the NSFW content have been implemented, to the point where now you can actually ride a dildo, finger yourself, play with your boobies and such, but nothing crazy for now.
For the future, the DEV said that, he want to make sex avaiable with other NPC (npc that now we still don't know anything about)
I assume that he might think of the SLAVEs as one of those future npc BUT.... that's my personal opinion and might be completely wrong.
Anyway, if u play the patreon version, you have A LOT of changes in front of the STEAM DEMO, that is very very very old dated at this point.
i really suggest you to try the patron version, just scroll on the previous pages in this section to find the "download" link (wonderfull people sometimes upload the patreon version), and give it a try, i wouldnt raccomand playing the steam demo since its too old at this point.
I hope my answer helped you out :3
