"Oddly, her mom and brothers were visiting when I arrived, I guess to check me out . . ...  She appologized for the family welcoming committee, and led me up stairs"  

Was the family visit a coincident or a planned event?  How is it possible to go through the session with her family downstair waiting?  How did he greet her family when the session was over.  It just doesn't add up.  

I've never seen a provider in her home but heard many horror stories about it, including her BF or teenage son coming home at the middle of the session.

that's funny, I was sort of thinking about the mother-daughter combination also; hey wouldn't that be interesting! ...but then the mother supposedly looked "tough", I think I have less of a problem with the mother being there than the brother, but would have backed out with either there.  Although, I've been in a situation where I know there's another person in the apartment (probably another escort), and another time when I thought there could have been someone else briefly in the hotel room, quite unsettling.