I understand why you're asking this question and while I get why you don't want to pay a lot of money if you can't touch the SP, some of us have a social rate. I've allowed clients I already knew to hold my hand during a movie but they still paid for social time.. but generally social time doesn't involve any kind of physical affection.
I think 2h and 4h dates are very generous etc and I think some SP might accept it but many of us wouldn't.. personally I probably wouldn't because I often don't have the time and energy, unless it was a special occasion. It shouldn't be taken personally that the SP can't do this...
You're paying for the person's time. If I'm going to see a movie, I will go alone or with a friend on my own time.. I hope this helps