I've had a shower when getting a massage and it was alright. I liked it a lot more after her and I met a few times.
As for you... do you offer that before they get there? If it's when they show up, they might now want to spend the extra time doing the shower. Especially so if they made sure they cleaned up before showing up.
I’d say it’s a given to do that as a courtesy to the Lady,especially if you’re not coming straight from home where you freshly showered.Also,as far as I heard, most Ladies offer a Shower,and if you accept it doesn’t count against your booked time.So,no matter if the Lady would join or not,a Shower should be taken regardless( but would be nice to soap a Lady in while doing it☺️☺️)