Seriously. Letting a gal know your preference in attire is perfectly acceptable even if you need her to dress down in case someone might see her with you.
Especially when doing an outcall to your residence. If you DON'T tell her to be conservative then don't be surprised if she shows up dressed all sexy for you and give your neighbors a nice show.
I've never had a lady get angry over, or refuse, a request to dress comfortably.
Uuuuum but fuzzy slippers and flannel PJs are a leeeeettle over the top.
