The character 'Mia' is simply a random name given in place of a y/n character so I simply wouldn't have to keep writing y/n, and to avoid it sounding awkward if anyone were saying her name in the story. The name is purely random and has no relation to anyone in the mcyt community (that I know of).
I will also post separate chapters that gave zero relation to the series 'just the three of us', one already being posted called 'bed head'. These are totally unrelated besides still being mcyt smut. If anyone was confused I hope that's cleared up now.
Lastly, I have many more chapters ready, I'm just posting a few slowly atm, waiting for more support, so share however you can please! Thanks to everyone for reading so far (;