What about the ones who've barebacked their partner an hour before stating work.
Mmmm warm porridge for breakfast
Back in my early days of punting I was a bit put off by the thought of having sex with a girl who had already seen half a dozen guys etc however I also used to go for OW rather than OWO too for the same reason.
However as punting became more normalised in my head so my inhibitions also reduced so OWO became the norm as did DFK if it was available despite knowing the last guy may have spunked in her mouth 10 minutes prior.
I have gone through a few kinky phases during my punting career and one of them was booking a parlour girl for her last or next to last shift as she would have already been seen by about 15 guys before me.
It made the punt and girl seem dirtier and the whole thing seedier but I particularly liked one of these punts as while fucking the girl she was happy to run off a list of how many guys had fucked her that day plus how many had had OWO; CIM; facial etc
Where you are with your own particular punting likes and dislikes isn't necessarily where you will be in a few years time as in my own experience it can be quite fluid, never say never and be open to changing your preferences
So I do get where you are coming from and my advice would be to book a parlour girl for the 1st shift but book her the day before (she may not turn up as these girls are flakey and not exactly known for their reliability
)
Alternatively book an Indi girl again doing it the day before but instead of telling her you want to be the 1st perhaps word it in a slightly different way along the lines of i'm looking for a booking tomorrow what time are you planning on starting then book her for that time
No guarantees of course but at least it moves the odds in your favour