No, I'm fine with two, or even three, pops in an hour if they can manage it. The only thing I find annoying is if they try to initiate a round two about 55m in, knowing they'll not finish within their time.
What about guys who say ‘I want to come twice definitely in the hour’ before the booking has even began? I hate that
I charge extra for cumming more than once in the half an hour but I do allow twice in the hour. If they havnt cum by 35 mins in an hour booking I slow right down and make the first last out to the point that there’s no point in trying for a second.