I also initially thought I could find it up by "Fifi" in my local archive and on web.
It's not Weekend maid (which I read and like a lot)
It's not Slut Chip either (which I'm reading now but story I search for doesn't have TG elements)
thanks!
upd:
find it!
it's Softbots R Us by thrall from mcstories. It was removed from mcstories for some reason but finding full name in other person's reader's pick about it was enough to find actual text.
Sometimes remembering I create Google CSE with limited set of sites (
https://programmablesearchengine.google.com/about/ ) helps to get at least pointer to