I treat all my bookings (even if I have seen her 10 times) like "first dates". SPs are human too.
So I plan days in advance as such I get a fresh haircut, wax/shave bits and beard, clean up bits thoroughly, decent cologne etc. Then dress in a way anyone should if they were expecting to meet a person for the first time for a romantic skip.
9.999/10 SPs will have no restrictions as to what they will do to/on you if you pitch up like that.