Hey! Sorry If I didn't read this, I was really busy. Sure, I'm going to answer to your questions:
1. Obviously you can get as far as you can with theme, but you can't get further of a dream with two people (and some other little details in the Overview page).
2. Of course desktop's app are allowed
3. Honestly I didn't think about a NSFW rule, so I think that would be fine(?). Honestly I don't really know. If you really want to make NSFW contents, I would prefer it to be censorable.
Thank you for partecipating and sorry for the late answer!