If I can interpolate my own experience from this afternoon. I popped into one of my favourite haunts in the Surawong/Silom/Sathorn area where a number of guys performed or had performed on them (or both) sexual acts in public for a miserable 0 baht ie. just for the hell of it. I think hanging around with a hard-on is certainly expecting/demanding; whether they found it demeaning or not I cannot say, but I had a good time