Ya know, I don't know why any man would take offense to being asked to freshen up. I always shower/shave (both face and down below), brush my teeth, etc before a session if it's in the evening. Put on fresh clothes of course, although I'm going in commando lol. If a provider asks me to freshen up anyway, sure, no problem. If it's during the day and I'm slipping away for a naughty lunch so to speak, I'd gladly freshen up even though I was freshly showered that morning. If it makes the provider more comfortable having me freshen up, then why not? At least you know they're going to be more willing to go down and give little big man a much more enthusiastic oral experience. I'd never take offense to being asked to freshen up.
Now on the other hand. I would assume that the provider is fresh when I show up. If not, good possibility I might just walk. Haven't ran into that, but you never know. All the providers I've seen have been freshly showered, smelling wonderful and have been fresh and tasty down below
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