Looking for a story about a writer who is a guest at a mansion

[Daever]

I am looking for an old story about a writer who is a guest at a mansion.

He meets the niece of the lady who invited him but she is kept in rubber bondage almost permanently.

I remember one chapter where the niece baits him into a bondage cape and locks him outside in the rain.

Ring a bell for anyone?

[Caras pet]

This one, maybe?
The Ultimate Challenge by dianag
https://www.boundstories.net/storiessz/ultimatechallenge.html

[teanndaorsa]

No, I think I know the one you're thinking of, definitely a male protagonist. It was on the Staylace site I think, a couple of chapters long. Can't remember the title or more details but if you hunt around on that site you should hopefully find it. If I have time later I'll hunt around with Google Site Search on it.