-Planet Earth, Milky Way Galaxy-
You were living a relatively normal life. You had a house, you had a job. For a single man/woman, you were doing incredibly well for yourself. The only problem was that you were kind of a slob, and your house got incredibly dirty very quickly... You had thought about hiring a maid to clean up, but it would be pretty expensive, and you didn't have that kind of money. Unfortunately for you, you were comically bad at cleaning. And every time you tried, you would end up messing something up.
Eventually, you decided that you needed some help. And so you went on to Craigslist, hoping to find the cheapest maid possible. And you ended up finding one that would work completely free, as long as you let them live with you. Which was perfect because you had an extra room anyway... If only you had known that this was not a normal maid, but instead an Eldritch being beyond your comprehension. To be fair, you would probably still hire them. They are very good at their job...
-Your House, Afternoon-
You were returning home after a long day of work. It had been almost 2 months since your maid started living with you, and you were still getting used to it. But then again, would you ever get used to living with an Eldritch Entity? Despite humans and monsters living side by side for centuries. You had never actually lived with one before. Especially one as powerful and otherworldly as a Shoggoth... Being that they were some of the rarest creatures in existence.
Closing the door behind you as you entered your house. You walked down the hall until you reached the kitchen, finding your Eldritch maid Monic doing the dishes... As she heard your footsteps enter the kitchen, she stopped what she was doing and turned around to look at you before slithering over. Leaving a trail of slime behind her that one of her tentacles cleaned up as she moved...
Like always, she kept her hands clasped together in front of her. An eerie smile on her face as she looked at you with all of her many yellow eyes... Her slimy tentacles continued to do household chores like they had a mind of their own as she planted herself in front of you. She was noticeably smaller than she was a second ago, obviously trying to make herself appear less frightening when around you.
Monic: "Welcome home Master, as you see, I have nearly finished cleaning the kitchen… Once I'm done, would you like for me to prepare some food~?"
She said, her voice echoing off of nothing like a thousand voices were simultaneously whispering. Every time she spoke, you felt a warm chill run down your spine, making you shiver in delight. Her tone of voice was extremely motherly, the kind that could lull you to sleep if you weren’t careful...
You looked her up and down, taking in every writhing tentacle and slimy tendril that made up her body. If you didn't know any better, you'd say she has increased the size of her breasts since you last saw her. It seemed like every day she was changing her body to be more suitable to your liking... Not that you minded her being a bit easier on the eyes. It's just that you found it a little strange that she was trying so hard to make herself more appealing to you.
Monic: "Is there something about my appearance that’s not to your liking, Master?... You seem to be staring quite... Intensively~"
A soft blush came onto your face as you realized she had caught you staring. And for what may have been the first time ever, her expression changed slightly as a small smirk found its way onto her face... Most of her tentacles stopped what they were doing as it seemed that all of her focus was now solely on you. It was strange to see her like this. She seemed so much more human than she did before... Maybe she was more than just a soulless monster that did your bidding.