When you read a spanking story, what elements of it do you require to be present or absent for you to enjoy it? In other words:
1. what must every story have for you to feel it was a good story?
2. what can it absolutely not have, and if it does, you won't like it?
For me:
1. It must have privacy for the characters, most of all. If it doesn't have that, I can't read it. I know a lot of people enjoy stories which feature public spankings or humiliation, or group spankings and such, but that's not for me. I prefer 'enclosed' stories, with just the two important characters (spanker, spankee), maybe some cameos if necessary, but not too much.
2. It absolutely cannot have 'bad literary logistics', such as, for example, people who behave age-inappropriately (children talk and reason like adults), women are stronger than men (uh, no), or everyone in the story is incongruously young and gorgeous (which is why, for instance, in my own stories, the professor is "sort of pretty" and has "nice tits for her age". She can't be 23 years old and look like Jennifer Lawrence, because no such professors exist, profs can't be 23 and their work hours prevent them from having the time to look like Jennifer Lawrence.)
I am willing to put up with any sort of plot at all (aliens, weird-ass boarding school, virtual reality, whatever, why not), but I can't take ill-fitting logistics.
But these are just my own quirks

What are your quirks?
(Also, feel free to tear into me with examples of bad logistics in my own stories, if you've read them; I won't be offended and we'll have a lively debate! Or to tell me how wrong I am and why, or even to recommend good stories that might change my mind about my requirements...)