She does indeed, and yes it is crazy hot. But it isn't like you might imagine. She is shy about it, which makes it so much hotter for me. The amount of cum inside of her still shocks me every time, as she could fill a mug with it. Her boyfriend had huge loads too, and she would leave the huge pools of cum on the bed, table, or where ever he left her after he was done with her. In those early days she hadn't even tasted cum yet. Then after her boyfriend started deep throating her and filling her mouth with cum, she got addicted to that too, and then shortly after that she started sneaking tastes of her creampies. I think that also encourages her to hold the cum in more, as if she was hiding treats.
She actually makes herself cum by tasting it and reminding herself how much cum is inside her. Of course I encourage it with word play. She puts her hand between her legs and lets a little flow out over her fingers, and then moves her fingers slowly to her mouth and rubs the cum over her lips and licks it. She will repeat this many times for maybe an hour or more and have many orgasms over that time. Sometimes she loses control and huge globs ooze out and through her fingers, and then she almost cries. I've heard the term cum slut before, but this is very extreme.
After her boyfriend broke her, she has no control. I think anyone on the street could fuck her if they wanted to. She just cannot control herself at all. She can't say no to anyone except me, and that is because it is more exciting for her to say no to me, and It's more exciting for me too. I'm just lucky that none of the guys have tried to keep her, because I imagine that any of them could at this point; although her masters seem to have her and her clients perfectly controlled so far.