And Now, the return of "MIdAS BITCHES ABOUT STUFF!" Hold your applause.
First off, Bella says "Are you having a hard-on?" which should be "Do you have a hard on?" or "Have you got a hard-on?".
Next, Mom says "You need to be cleansed, Mistress" Obviously she's the mistress so that should be "You need to be cleansed, Adriana" You could also substitute "Adriana" for "Slut" or "Whore" in keeping with the roleplay.
Small one, not sure if deliberate, Rachel says "Myeah" not sure if that's a mistake or not.
And (almost) lastly, you say "Whenever it stops to be enjoyable for one of us we'll talk about it, like we're doing now" which reads awkward, "Whenever it stops being enjoyable for one of us we'll talk about it, like we're doing now" is more correct, but that makes it seem like an inevitability, "If it stops being enjoyable for one of us we'll talk about it, like we're doing now" is my suggestion, it makes it sound less like one of you is going to stop having fun eventually and has more hope, while still approaching the subject maturely.
I'd also like to see either a safeword, or the "Traffic Light" system discussed with Bella, blundering into a D/S relationship without that is a bad idea IMO.
Other than that, I quite enjoyed this update, hopefully it won't wind down too quickly, I wanna see plenty of hump-piles.