So, how many prostitutes, call girls, sluts and/or whores does your book have?
Any of them men?
I'm so so so tired of prostitutes of all kinds and stripes in crime fiction that I've reached the point that when I see it I stop reading.
Here's why: prostitution isn't interesting. Not then, not now, not ever.
All too often I believe female characters are cast as prostitutes because the author (usually a man) finds it titillating. May be to them the whole idea of a prostitute is titillating...but it isn't actually titillating on the page. In fact, to this reader it's essentially two dimensional characterization and thus boring.
There are exceptions of course. Off the top of my head Michael Connelly; I'm sure there are others. The reason it's not boring in Michael Connelly's books is because the character is Bosch's mum first, and a prostitute is just PART of who she is.
In movies, setting a scene in a strip club is an excuse to show naked women.
In a book, I have no idea what it does.
If I had to guess, I'd say more agents feel this way than not, particularly lady agents.