Driving me crazy (Patreon)

I wrote at least one, probably two, with the super heroines have a secret little "apartment" sort of where they could go to rest, usually hook up with each other. I distinctly remember Catgirl taking Ms Justice there. She mentioned at least Gold Avenger knew about it. 

But I cannot remember any other details, or even the story(ies) it occurred in.

Does anyone here remember this detail? Remember the story?