I’m not sure if this is allowed in here… but I figure it’s worth a try. Sorry if this isn’t welcome.
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It has been awhile so I don’t remember the name or quite anything. But I do know this story was on Literotica. So I’ll try to give a brief overview of the story. And then a more detailed version in case that would help.
To start off the story is of a female Drider and a male Human. The man comes to this old small town. And finds work as a handy man at the library. Where of course the drider also works. And as it were best place he can also stay and have a roof over his head. Is the same old church she lives in. No happy about her new roommate. And with the spike in her need to mate. Events of the story begin.
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Now for a more detailed version should it be needed.
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The drider, she works at this library as a library. And to keep her obvious monstrous appearance hidden she tucks her lower half into a mechanical wheel chair that she has removed all of the bits and bobs out of. Using her legs to propel the wheels.