Meet'N'Fuck Games

I wanted to ask this for a future idea I had in mind. I know Incest and Sex with Monsters, Beast and Animals are prohibited but are guys that are at least built humanoid wise okay? Like I had an idea of a stepdad being a demon from hell but him with a normal human structure.

The character looked like this: https://i.ebayimg.com/images/g/e84AAOSw ... -l1600.jpg

I was wondering if that is okay to use for the future idea.

dildon fusk looks like this, I think it's good. Is there a story with this character, I'd love to read it