Once I really wanted to see a new MPA at SRM. So on Monday I booked her for an hour at 8pm the following day (Tuesday). Then I get a call Tuesday from one of my regular MPA's at SRM saying she wants to see me and she is on that day. So I say I'll see her at 9pm. So I show up at 8pm and see the first girl, then at 9pm I say goodbye to the first girl, walk to reception, and say "I'm here for my 9pm appointment with (girl 2)". So they show me to another room, and I have a session with girl 2 till 10pm. I enjoyed both sessions, but it took a lot out of me to see them back to back.
One other time I saw an SP at 4pm for an hour downtown. It wasn't a great session as it was a first session with her and we didn't click. I won't say who as I saw her again 3 weeks after that and it was much better the second time and her Terb reviews are in line with my second visit). So I was annoyed when I left downtown, and after getting home and eating dinner I called SRM to see if one of my regulars - Paris - was working. She was, I booked a session at 11pm, and it was great.
So, as a rule, I don't like to see more than one girl per day, but those were my two exceptions.