I prefer it, makes me feel more comfortable to take that 5min breather after introduction and also then I'm sure I don't smell bad. I figure if i expect the provider to not smell I should probably do the same
on this day I also came from work so no opportunity To shower before hand.
I will say a few years back I saw KLN on her way thru DSM and same story- coming from work so had to request use of her incall shower. She had all set up and after I got out she was very appreciative and said something like "you even used the wash cloth" I asked her why I wouldn't and she just mentioned many guys just rinse But don't actually wash.
So, anyhow, I like it and I think its respectful to the provider so I try and do it whenever possible.