Thanks for your question!

To be honest, I've always got my head in the clouds, imagining something or other. It comes really natural to me, I only write 1% of what I think about and usually it is because it is something I can't stop thinking about. I find this difficult to do sometimes, because it can be hard to do whatever I have been imagining justice. I have like an anime playing in my head a lot of the time, it can be hard to write it properly lol.
I like approaching writing as puzzles from time to time, so that's why I like fulfilling prompts and that sort of thing because then I'm trying to work my brain into a specific direction.
But yeah, I think my writing comes from personal experience a lot of the time...
I think the biggest element is characters, if I really care about characters it can be really easy to write just about anything to do with them.
Also, plain and simple, self indulgence is a huge element of why I write what I choose to write XD
It can feel so amazing to see something that I really wish existed finally exist (like the really specific young Link vore porn I wanted to write).

idk if its the 'worst' but first thing that comes to mind is like gore/snuff like wild pokemon mauling and devouring them in some really fucked up way but it (could) also be sort of innocent in a natural balance of things sense because the creature is just doing what it wants to do or it was provoked into, just following its biological rhythms or something idk it doesnt have to be like explicitly sexual (but it could) and the girl doesnt have to understand what is happening to her or how her life is ending for it to be taken from her in a really savage way. I want to write this type of thing but I hesitate because I'm embarrassed about things like this because they really interest me like way more than most things and I guess caring that much feels like I'm revealing way too much of myself... lol

Easiest is just really whatever I am most familiar with. I can switch gears and get fixated enough to be able to write on anything provided I feel like I have a personal connection with the characters. Kingdom hearts, Pokémon, final fantasy.. things like that stick out because I have been invested in those worlds for such a long period of my life.

I find it hardest to write for things that I am not super familiar with or things that I am not fixated on. Also things with complicated arcs of lore or things that rely heavily on fanon rather than canon.. this can make touhou hard to write for even though I love the series because many people have different interpretations for a character and all are correct. I don’t want to write something that would make a fan of the character upset or something…

Characters again, are easiest to write if they feel like they are my friends. The cast of tales of Symphonia or South Park, Pokémon characters, yugioh characters… these are all that stick out to me as feeling so alive that I can hear their voices in my head lol 😂
Hardest would be characters I really hate or don’t like… but I just don’t write about those so it’s no big deal !

This is just about one girl but I felt bad because it's been in my inbox for three months and it's a good question:
OK this is totally randomly I don't even really have a good basis for this game theory I don't even know where it come from but I feel like Iris would really have a feet thing like she'd be really into people giving her a lot of attention and sexualizing her feet but she'd be embarrassed about it being 'weird' and like just try to fish the attention she wanted out of people by wearing different kinds of shoes or doing things to try and hook someone in to complimenting her in that way. And if she did get someone to sexualize her feet/shoes/socks whatever she'd get all flustered and embarrassed and not know what to do with herself but she'd be ecstatic and would probably let the person do whatever they wanted to her as long as they kept it up