Going back about 4 years ... I went to see a Thai SP in central London. I made a 90 minute booking for 6.30pm. It was a Sunday evening - pretty much the only day of the week that I could punt on at that time. I got there about 10 minutes early and sent a text; got back a text with the flat number and 'you come now!', so up I went.
Paperwork taken care off, straight into shower with her 'assisting'. Out of shower, onto bed for first round ... wham, bam, thank-you ma'am. So, laying on the bed just chatting and recuperating before going back for 'round 2'. We're chatting, and I realise that there'd been no phone-calls, no text messages, etc.
'Second round', and I just about managed a second pop (I'm not as young as you guys) keeping aware of the time; I'll need a few minutes to recover, clean-up and dress, ready to be on my way at 8pm. Laying on the bed, cuddling the SP, and I said 'I have to go, you will have another customer at 8pm' and she said 'No, no calls. I finish 9pm, taxi come at 9'. I started to help clean-up (straighten the bed, throw towels into basket, mainly) and she kept saying 'no, no, I do!'. She dragged me back onto the bed (I didn't put up much of a fight ...), pulled a blanket over both of us, and we stayed there chatting for another 40 minutes! I was never going to manage 'round 3', but there was a decent 'round 2 and a half'.
I finally left at 8.45pm, and as I was walking back to the tube station I realised I'd still only paid for 90 mins but had been there for about 2h 40!
Yes, I'd go back again.